Articles

Fall Rose Care

Here it is in mid-October and many roses are still blooming. There are few shrubs, if we can call roses ‘shrubs’, that have such a long blooming season. For us, (in the Pacific Northwest), they usually begin to bloom in May and most modern roses, hybrid teas, grandifloras, and floribundas, will continue to flower until a frost or cold weather arrives.

Generally, in the Willamette Valley and areas on the western slope of the Cascades, we do not have to worry about temperatures in the winter that will kill roses. However, there are certain tasks we can do to offer them some protection and a little help through the winter months. My gardening philosophy is to try to keep gardening simple and here are some tips and ideas for winter care and preparation.

After a heavy rain, walk around your garden and look at your rose bed and notice if there is standing water. If there is, that is a signal that there is a drainage problem and fall is a good time to get it fixed. If the bed is on a slope, perhaps a small channel can be made to whisk the water away. While this is not always applicable, cultivating pumice or Black Gold® Perlite into the soil can be helpful. Roses need good drainage and standing water can do serious damage to roses, especially if a hard freeze is predicted. By eliminating this problem now, your roses next spring and summer will ‘thank you’. There is a saying that I’ve often heard that goes “more plants are damaged from winter wet than winter cold”.

A mulch around roses in the fall can also be helpful. Adding 2-3 inches around the plants can offer some root protection from the cold. Almost any compost product will work, it could be a general garden compost, fir boughs, straw, or leaves. I especially like maple leaves because they decompose fairly quickly, provide winter cover, and are an excellent addition to the soil.

Fall pruning is also a task that can be helpful to both the plant and the gardener! A general rule that rose gardeners often use with regard to pruning modern roses is “prune to waist high in the fall and knee high in mid-February.” Of course, this is somewhat vague because waist heights very greatly and this statement should be used as a guide. Many rose bushes are quite tall by the end of the season, often 6 feet or more. In areas where there are high winds, the wind could rock the plant back and forth and loosen the roots. Pruning the bush lower will help eliminate this.

The bonus of fall pruning for the gardener is that with a number of rose plants, getting rid of some of the debris, canes and leaves, will make less debris for spring pruning.

When cutting rose canes, I suggest removing them as well as old diseased leaves from the garden. After fall pruning is completed and the debris has been taken away, then add a mulch. A mulch can give a garden a finishing ‘touch’ and your garden has gone to bed for the winter!

The one thing that you do not want to do is to fertilize your roses now. Their primary growing season is over and applying fertilizer now is of little value.

If your roses are still blooming, enjoy them! That is the reason we plant them. My floribunda rose ‘Doris Day’ has many flowers on it now, (late October), and bringing flowers indoors at this time of year is a delight. Just giving your rose plants some extra care in the fall season can be helpful for them when spring arrives.

About Mike Darcy


Mike lives and gardens in a suburb of Portland, Oregon where he has resided since 1969. He grew in up Tucson, Arizona where he worked at a small retail nursery during his high school and college years. He received his formal education at the University of Arizona where he was awarded a Bachelor of Science Degree in Horticulture, and though he values his formal education, he values his field-experience more. It is hard to beat the ‘hands on’ experience of actually gardening, visiting gardens, and sharing information with other gardeners. Mike has been involved with gardening communications throughout his adult life. In addition to garden writing, he has done television gardening shows in Portland, and for over 30 years he hosted a Saturday radio talk show in Portland. Now he writes, speaks, gardens and continues to share his love of gardening. To be connected to the gardening industry is a bonus in life for Mike. He has found gardeners to be among the friendliest and most caring, generous people. Consequently, many of his friends he has met through gardening

Autumn in the Garden

Autumn leaves drifting by your window are telling you that fall is here and it is time to put the garden to bed for the winter. For us, it is a very busy time, almost as busy as spring if one sees it as a not particularly enjoyable task and has not done their necessary work the previous fall.  I plead guilty to this almost every year so I will list what needs to be done, starting with the most laborious:

Cleanup This requires cutting back and cleaning up the flowerbeds. I do not realize how many flowers I have until I have to take them out.  Old plant material must be cut off and removed leaving minimal dead material on the ground surface.  This is important for iris as the borers which plague them will winter over in old vegetation left behind.  Roses need the same treatment to discourage black spot the following spring.  I often do my removal in stages: first cut the peonies back to 3 inches then the coneflowers to the base. The Helianthus (perennial sunflowers), both single and double are cut back as well. Next will be the hostas whose leaves are changing color even without frost.  All annuals should be removed as well (although some are still so pretty I am waiting for frost).  This old material should be bagged and disposed of.  We do not compost this material for fear of aiding and abetting garden pests.

Plant new perennials Many nurseries encourage planting new perennials in the fall. I am always leery of doing so as plants from some mail order companies are so small I would prefer to give them a whole season to grow.  The exceptions are peonies, hostas and daylilies. To maximize your planting success, amend the soil with Black Gold® Natural & Organic Potting Mix, Natural & Organic Cocoblend Potting Mix or Natural & Organic Just Coir.

Plant Bulbs. This is the time of year to plant bulbs for next spring.  There are a couple of new things I learned about bulbs that I did not know before.  Wait to plant your bulbs until the weather is cool and after the first frost has the soil around 55 degrees F., but before it has frozen.  Be sure to plant at the recommended depth. If you want to make this job much easier go to GardenersEdge.com and look for the “Bulb Bopper”. Do not add fertilize to the hole as that can encourage root rot.  Fertilize on the top of the ground (1) when you plant, (2) when you see the first foliage poking its leaves up and (3) when the plant starts to die back.  Use a food that is just for bulbs.  Mulch over the bulbs lightly and remove the mulch in the spring when the plants start to come up.  Another surprising piece of information is that some of the gorgeous tulips you see in stores everywhere this time of year should be considered annuals.  The first year after planting they will send up beautiful blooms.  The next year only a few spindly ones and the year after that only leaves.  However, some tulips will not only bloom every year but also naturalize over time.  These include the species, Kaufmanniana and Gregii, and giant Darwin tulips.  Give them at least 6 hours of sun a day and with all bulbs let the leaves die back on their own as they are building up the plants for next spring.

Planting trees and shrubs They do not have the stress of summer heat and will expand their roots over the winter. It is very important to be aware of the minimum distance from the house that shrubs and trees should be planted.  It is so common to see plants smashed against the house.  Small shrubs ought to be 3 to 4 feet away from the house, big shrubs such as lilacs 6 ft. and small trees such as Japanese maples 10 feet. Anything larger goes out in the yard.  Be SURE you know the amount of sun required for each plant.  Shade for rhododendrons and sun for Beauty Bush.

Mulch. Fall is the time to mulch, not so much to protect from the cold of winter, but because it is just too much to do in spring with everything else to do.  I previously mulched in the spring but now I can see the advantage of getting it over in the fall. We use bark mulch from local sources. The mulch should be 3 to 4 inches deep.  The most important thing to remember while mulching is to keep the mulch 3 inches away from the base of each perennial and 5 inches from shrubs and trees.  Mulching right up to plants will cause them to rot.

After the weather clears I will go outside and practice what I preach. Happy Gardening.

About Teri Keith


Garden columnist, Teri Keith, has gardened for over 50 years in her home state of Indiana. She served as a longtime IGC nursery manager specializing in annuals and perennials in Bloomington, Indiana and still gardens with passion. Each year she plants and maintains over 50 flower containers, many gardens, and a large collection of lilacs.

Fall Bulbs by Mike Darcy

I think that it is fun to deviate and plant some bulbs that, perhaps, are new to you. Here are a few suggestions.

Relatives of the edible onion, Ornamental Alliums can make a beautiful showing in the early to mid-summer garden. The flowers usually appear in clusters on bare stems. There are many different sizes to choose from with some only getting 6 inches in height with others reaching 5 feet or more. Usually, the flowers are shades of blue but there are some pink and white forms. ‘Lavender Bubbles’ is a small compact type that would fit into most garden settings.

Galanthus (Snowdrops) are among the first of spring bulbs to bloom. Their nodding, white, bell-shaped flowers are a signal that spring will soon be here. These are ideal for planting in rock gardens, under flowering shrubs, or to grow in pots. I have found that they like a little bit of shade or filtered sunlight. Galanthus ‘Flora Pleno’ has a double layer of white flower petals that are tipped green.

When we think of daffodils, we usually think of the yellow flowering trumpet type. The trumpet types are very easy to grow and tend to naturalize much more so than tulips. Technically all daffodils are Narcissus’, but we usually refer to the trumpet type as daffodil. The selection ‘Julie Jane’ has a very unique flower form and is ideal in a pot.

If you don’t mind waiting a few years, and your garden has the space and the right conditions, and if you want to make a spectacular statement with summer flowering bulbs, Cardiocrinum giganteum, (Giant Lily), might be the plant for you. This is sometimes referred to as the Giant Himalayan Lily, and with good reason. Even though it might take it 5+ years to bloom, depending on the size of the bulb, it is well worth the wait. The flowering stem can reach 8 feet or more in height with 20+ fragrant flowers on a single stem. This bulb prefers a light shady location, a woodland setting could be ideal, and a soil rich in humus. Black Gold® Natural & Organic Garden Compost Blend would be a good addition at planting time.

It seems as though the selection of fall bulbs expands every year and garden centers are offering more choices. That is good news for gardeners. If you have a special bulb you are looking for, buy early. With supply and transportation issues, garden centers do not always have an option to reorder. Think ‘out of the box’ when planting and don’t limit yourself to only planting in rows. Plant bulbs in mass plantings or groups. The reward in the spring will be worth it!

About Mike Darcy


Mike lives and gardens in a suburb of Portland, Oregon where he has resided since 1969. He grew in up Tucson, Arizona where he worked at a small retail nursery during his high school and college years. He received his formal education at the University of Arizona where he was awarded a Bachelor of Science Degree in Horticulture, and though he values his formal education, he values his field-experience more. It is hard to beat the ‘hands on’ experience of actually gardening, visiting gardens, and sharing information with other gardeners. Mike has been involved with gardening communications throughout his adult life. In addition to garden writing, he has done television gardening shows in Portland, and for over 30 years he hosted a Saturday radio talk show in Portland. Now he writes, speaks, gardens and continues to share his love of gardening. To be connected to the gardening industry is a bonus in life for Mike. He has found gardeners to be among the friendliest and most caring, generous people. Consequently, many of his friends he has met through gardening

Plants That Perform In the Hot Summer Sun

We have had some very hot weather here in the Pacific Northwest and in some cases previous high temperature records have been broken. Not only have we had very hot and sunny days, but there has been no recent rain and the ground is very dry. It is not unusual for us not to have rain in the summer months, but with no rain and high heat, plants can suffer. The diversity of plants always continues to amaze me with some being able to thrive in the hot sun, while others wilt, and the leaves burn.

Most gardeners have their favorite plants for sunny locations and much of the information on these plants is probably trial and error. I have certainly had my share of plants that I thought would perform well in a sunny location, only to find out that I was mistaken and they either died or the leaves became scorched. A helpful hint, that I have mentioned in previous articles, is adding Black Gold® Natural & Organic Just Coir over the soil surface. Coir has high water-holding capacity which is a helpful addition to summer plants growing in containers.

The following is a listing of plants that seem to thrive in the sun and provide summer color with flowers and/or foliage,

One of my favorites is Bougainvillea ‘Raspberry Ice’. While Bougainvillea is mostly known as a tall and fast-growing vine, ‘Raspberry Ice’ is a low mounded spreading form which makes it ideal for pots and hanging baskets. With variegated foliage, this plant is attractive even when not in flower with the typical purple flowers, actually bracts. Bougainvillea is a tropical plant and will not survive our winters and I treat it as a summer annual.

What’s not to like about Zinnias. An old-fashioned flower that continues to be popular in gardens of today. The color range is vast with colors of red, yellow, cream, white, pink, purple and shades of all of these. The plants have a wide range of height, some are low growing, others tall, and many in-between. They bloom all summer, and the flowers are excellent for cutting.

There are two new Coreopsis in my garden this year and both have been blooming since I bought them in early June. This easy to grow member of the sunflower family has flowers and foliage that are quite diverse. Coreopsis ‘Lightning Bug’ has fern-like foliage and small flowers that cover the plant. Coreopsis ‘SuperStar’ has larger flowers and foliage. With their vibrant flowers, a grouping of either provides a bright spot of color in the garden.

With hundreds of small flowers on a single plant, Cuphea is known not only for the prolific flowers it provides all summer, but the flowers are also known as a hummingbird magnet. Sometimes call the cigar plant because the flowers are orange-red with a white tip and a dark rink at the end. For a plant that gives continuous color, it’s hard to beat Cuphea!

The large bold leaves of a Canna can give a garden a tropical look. With the leaves varying from solid green to different variegations, they can provide color when the plant is not in bloom. Two that I particularly like are ‘’Bengal Tiger’ and ‘Cleopatra’, both of which have outstanding foliage. ‘Bengal Tiger’ has yellow-striped variegated leaves with a narrow maroon margin and bright orange flowers. ‘Cleopatra’ has leaves that may be partially a dark chocolate color and green or all green or almost all dark chocolate. The flowers are equally variable and can be red, yellow, and often of combination of both colors. It is a very eye-catching plant in the garden.

 

These are just some sun loving plants that perform well in Pacific Northwest gardens. I find it interesting to try some new plants every year to test their summer sun worthiness. Many of these plants are available at garden centers and can still be planted. The plants will probably be larger than they would have been in the spring and can provide some instant color in the garden. Try one that is new to you!

 

Happy Gardening!

 

About Mike Darcy


Mike lives and gardens in a suburb of Portland, Oregon where he has resided since 1969. He grew in up Tucson, Arizona where he worked at a small retail nursery during his high school and college years. He received his formal education at the University of Arizona where he was awarded a Bachelor of Science Degree in Horticulture, and though he values his formal education, he values his field-experience more. It is hard to beat the ‘hands on’ experience of actually gardening, visiting gardens, and sharing information with other gardeners. Mike has been involved with gardening communications throughout his adult life. In addition to garden writing, he has done television gardening shows in Portland, and for over 30 years he hosted a Saturday radio talk show in Portland. Now he writes, speaks, gardens and continues to share his love of gardening. To be connected to the gardening industry is a bonus in life for Mike. He has found gardeners to be among the friendliest and most caring, generous people. Consequently, many of his friends he has met through gardening

Fragrance In Your Garden

For the past couple of years, cold stormy springs blitzed our lilacs, of which we have many.  That heady fragrance was sorely missed around the Keith household. We were definitely spoiled for fragrance.  But we were able to hang on until our other flowers and shrubs bloomed and took up the slack. We did lose some lilacs during that period, but we have had other, more catastrophic losses (dairy cows in the Jerusalem artichokes, for instance or the family dogs making off with the guest of honor on Thanksgiving morning, but leaving the turnips).

When the first spring flowers appear in March, the soil is often too wet and cold to be planted, so like all good things we have to wait. But we can stock up on the wonderful new varieties offered by local and national nurseries.

Bearing the title of this piece in mind, what to buy for a fragrance garden?  See some suggestion below.

Shrubs

  • Lilacs (Syringa ) can reach heights of 10-12 feet. Three especially fragrant varieties are ‘Beauty of Moscow’, ‘Bloomerang’ and ‘Jose’. They are easy to grow so long as there is plenty of sun and the soil is well drained. Beauty of Moscow has double white flowers rising from pale pink buds.  They like Planting Zones 3-8. ‘Bloomerang’ lilacs (Zones 3-7) offer a richly fragrant purple lilac that blooms in spring and again in late summer or fall.

  • Korean spice viburnum ( carlesii) is a compact shrub up to six feet in height. Flowers have an incredibly spicy aroma plus showy pink clusters of flower buds that develop into whiter flowers that attract hummingbirds and butterflies. The fruits are black berries and in fall, the leaves turn scarlet. Some sources consider them invasive, but most do not. Prune one time to remove dead branches or restrict growth, then leave it alone.

Herbaceous Perennials and Annuals

  • Roses epitomize garden fragrance, but there are so many varieties put out by so many growers, a list of the available cultivars would fill a small book. We have been purchasing roses from the David C. Austin Co. since we discovered them. Austin (now deceased) was a British rose breeder and writer. The company offers trademark English roses, and shrub and climbing roses for the garden. ’Rosa Boscobel’ is an English shrub rose of medium height with a heady, complex scent. It produces large, salmon-pink flowers throughout the growing season (Zones 5-9). ‘Rosa Munstead Wood’ is a crimson shrub rose with a rich, fruity aroma. It blooms for most of the growing season (Zones 5-9). They come in light purple, deep purple, and pink.  They are also disease resistant. Prune this group right after they finish blooming.  Check local nurseries, or go to Proven Winners on line.

  • Lavender (Zones 5-10) These Old World natives are a natural addition to any fragrance garden. A summer bloomer (pink, blue, purple and white) that likes full sun and they are not too fussy about soil. Pollinators love them. (1-3 feet high)

  • Carnations (Zones 5-9) these well-known perennial flowers will add a welcome spice fragrance to your garden. They bloom in late spring, so you may want to plant another, summer-blooming species as well.  Flowers come in shades of red, pink and white. They prefer full sun, but can tolerate partial shade.  They like an alkaline soil, so amend your garden with Black Gold® Natural & Organic Ultra Outdoor Planting Mix. Carnations are said to be toxic to humans, and dogs and cats. (18 inches high).
  • Nicotiana sylvestris (Zones 10-11) Also known as flowering nicotine, this Argentine native can persist to Zones 10-11 if sheltered. Otherwise it should be treated as a re-seeding annual. Long, tubular flowers, ranging from while to pink bloom throughout summer, and they will also self-seed. They like part to full sun and a rich, well-drained soil. Bear in mind that this species is very toxic to humans and pets (3-5 feet high).
  • Garden phlox (Zones 4-8) Also known as paniculata, garden phlox is a perennial that grows in clumps. The flowers com in shades of blue, orange, purple blue and white and should bloom all through summer. This was originally a woodland species and needs a somewhat moist soil to thrive. (2-4 feet high).

This is just a sample of the fragrant plants you might choose for your garden. You might also want to plant fragrant herbs as border. Container plantings could also work well. Some tender species like lavender could be planted in containers and moved indoors when it gets cold.

Black Gold® offers the best in soil amendments and potting mixes for your garden, keep it in mind wherever and whenever you are planning all of your gardening projects.

 

About Teri Keith


Garden columnist, Teri Keith, has gardened for over 50 years in her home state of Indiana. She served as a longtime IGC nursery manager specializing in annuals and perennials in Bloomington, Indiana and still gardens with passion. Each year she plants and maintains over 50 flower containers, many gardens, and a large collection of lilacs.

Container Garden for Beginners

There was a time when almost every household in our town had its own garden plot that stretched between the back door and the alley. There were many reasons for this. First was that my hometown is primarily a farming community, with all that the term implies. Second was the double-barreled effect of (a) The Great Depression (1929 ~1940) and (b) World War II (1941-1945) when what was ripe in your garden was probably what was for supper. Third was a prevalence of first- or second-generation city folks who had been forced off the farmland by financial hardship or by primogeniture (e.g., all the land goes to the eldest son when dad dies). Fourth, many retirees under the (then) new Social Security Act did not trust the federal government to keep its word to continue Social Security benefits after retirement.

Now we live in a time of relative plenty despite the stress and strain on our social fabric and supply lines thanks to COVID. Yet many people will plant corn, green beans, potatoes, peppers and tomatoes wherever they can; not out of need, but for the simple pleasure of doing it.  In addition, for the knowledge that if Old Man Trouble happens to stop by you will still have food to fall back on.

So let us get to the subject of veggie container gardening, made possible in part by the development of new compact vegetable varieties. Here are some rules and advice.

  • You may notice the absence of some typical vegetable favorites from this article. That is, potatoes, corn, and melons. These plants would best be attempted with at least a year’s experience in container plantsmanship before hitting the big time.
  • First thing you need is a bit of space but not a lot. It needs drainage control, light (6-8 hours full sun) and protection from wind.
  • Next you need containers. 1-, 2- and 5-gallon pots are the most common sizes. 5-gallon window boxes are also good picks, as are 5-gallon paint buckets purchased at hardware or paint stores. Container gardens need lots of sun, but most plant roots cannot stand heat, so white plastic containers are a good choice. Drain holes are mandatory. You also want to provide about a foot of potting mix in the container for root vegetables
  • I mentioned plastic as a container material. By that I meant a thick polyethylene type material. Glass is too prone to breaking. Pottery (glazed and unglazed) may be decorative but are also prone to breaking from dropping and also from internal pressure from an expanding root mass in an undersized pot.
  • Do not use your garden soil as a planting medium (really!). It does not drain well enough and may harbor pests and disease.  Black Gold® All Purpose Potting Mix and Black Gold® Natural & Organic Potting Mix will meet the demands of your container crops from start to finish. Some experts also advocate filling container bottoms with dead (not green) lawn sweepings or compost then following that with a foot of potting mix.

Below are some veggies you can start on.

Bush Beans (e.g., Blue Lake, Bush Green Bush Yellow TopCrop  or similar)

  • 3 plants per 2-gallon container (8-12 inch soil depth
  • Plant seeds directly in containers (does not transplant well)
  • Harvest in 50-60 days

Cucumbers (Spacemaster, Tasty Green (Japanese), Straight Eight (English)

  • One plant per 5-gallon pot
  • Sow seeds directly into pot
  • Harvest time – refer to seed packet

Lettuce (Ruby, Salad Bowl, Buttercrunch, Webb’s Wonderful)

  • 5-gallon window box
  • Sow directly or transplant
  • Harvest time – 40-70 days

Onions (White Sweet Spanish, Yellow Sweet Spanish, and NOTE: Forget Vidalia Onions; the high-sulfur soils around Vidalia, Georgia are the chief reason for their sweetness.

  • 5-gallon window box
  • Plant sets 3-5 inches apart
  • Harvest 100-125 days after planting, or when 50-75% of the tops have fallen over and the skin has dried

Peppers (Cayenne, Long Red, Sweet Banana)

  • One plant per 2-gallon pot
  • Transplant starts or sow seeds directly
  • Harvest time – refer to seed packet

Root Veggies (carrots, beets, radishes, turnips, onions, etc.)

  • 5-gallon pot or window box at least 12-inch soil depth
  • Sow seeds directly in soil
  • Harvest time – refer to seed packet

Tomatoes (determinate varieties e.g., Rutgers, Tiny Tim, Roma)

  • One plant per 2-gallon pot (may require support)
  • Transplants well
  • Harvest in 50-100 days (depending upon variety)

There you have it: quite enough to do, but not enough to get into real trouble.

About Teri Keith


Garden columnist, Teri Keith, has gardened for over 50 years in her home state of Indiana. She served as a longtime IGC nursery manager specializing in annuals and perennials in Bloomington, Indiana and still gardens with passion. Each year she plants and maintains over 50 flower containers, many gardens, and a large collection of lilacs.

Summer Color by Mike Darcy

With the cool and rainy wet spring that we had here in the Pacific Northwest, most plants seemed to be about two weeks behind what would have been their ‘normal’ schedule. The weather delayed many gardeners from doing what would be some of their early spring chores. Not only was the weather not conducive for working in the garden, but the soil was too wet and muddy from all the rain.  Then in May, spring arrived with warm sunny days, and it was as if plants exploded with growth and bloom. Suddenly plants were no longer two weeks behind schedule but were on schedule.

As I walk around my own garden, as well as other gardens that I have recently visited, I am in awe of all the color that I see. Most gardeners always have room for another plant and the following are some of my favorites for summer color. Many of the plants that I use for color are in containers and I have found that adding a mulch across the top of the soil is a benefit to helping the plants thrive. Black Gold Natural & Organic Garden Compost Blend is an ideal mulch to help retain moisture. Another option is Black Gold Natural & Organic Just Coir which has excellent water holding capacity.

Hardy fuchsias would have to be near the top of the list for summer color. There is such a wide variety to choose from with size and color of the flower and the growth habit of the plant. Some will get quite tall, often up to six feet or more in one season, while the height of many stays in a three-foot range. Some varieties will even hug the ground and grow as a ground cover. Plant tags will often say sun to shade exposure, I have found they do best with some protection from the hot afternoon sun. One of my favorites is Fuchsia ‘Debron’s Smokey Blues’.

The flowers on Abutilon ‘Red Tiger’ do not look real but look like a fine stained glass art piece. This is a shrub and in a mild northwest winter, it will survive. A large plant in full bloom is stunning.

If there was ever a plant that was a work horse for blooming, I think it would have to be the dahlia. Most dahlias will begin flowering in June and there will be non-stop bloom until frost. The color range is vast and there is almost every color except blue. The flowers are also variable in their shape as is evident by the photos. These pictures were taken last summer in the trial garden of the Portland, (OR), Dahlia Society which is located on the ground of Swan Island Dahlias in Canby, OR. These photos give a good example of the wide range of color and shape of flowers. Dahlias also make excellent cut flowers.

Our summer deck would not be complete without several containers of Salvia. Keep the flower stems picked when the blooms are gone, and many will bloom throughout the summer. Two of my favorites are Salvia ‘Black & Blue’ and Salvia ‘Amistad’. The flowers on ‘Black & Blue’ tend to be cobalt blue and ‘Amistad’ has flowers that are deep purple. Both are magnets for butterflies and hummingbirds,

Sometimes, I think it is fun to grow plants that are known not to be winter hardy, but nevertheless will perform well during the summer. The Princess Flower, (Tibouchina), is one such flower. It will bloom with purple flowers all summer and into the fall. It will not survive our winters outside and so mentally; I consider it an annual. It is fast growing and flowering can be profuse. Excellent for growing in a container.

I realize that I have barely touched the list of plants for summer color, but the above-mentioned ones should all be readily available and easy to grow. Perhaps one is new to you, and you will give it a try. Most gardeners are always trying something new. Who knows, it might just become a favorite!

About Mike Darcy


Mike lives and gardens in a suburb of Portland, Oregon where he has resided since 1969. He grew in up Tucson, Arizona where he worked at a small retail nursery during his high school and college years. He received his formal education at the University of Arizona where he was awarded a Bachelor of Science Degree in Horticulture, and though he values his formal education, he values his field-experience more. It is hard to beat the ‘hands on’ experience of actually gardening, visiting gardens, and sharing information with other gardeners. Mike has been involved with gardening communications throughout his adult life. In addition to garden writing, he has done television gardening shows in Portland, and for over 30 years he hosted a Saturday radio talk show in Portland. Now he writes, speaks, gardens and continues to share his love of gardening. To be connected to the gardening industry is a bonus in life for Mike. He has found gardeners to be among the friendliest and most caring, generous people. Consequently, many of his friends he has met through gardening.

Pollinators in a Pinch by Teri Keith

Honeybees, (Apis milliflera) are in trouble in North America, and gardeners, farmers, beekeepers and industrial agriculture are in danger of losing their services. The decline has been going on since the 1940s. Factors include habitat degradation, introduced predators like giant wasps, climate change, and introduced parasites and diseases to name a few.

Honeybees are eusocial insects. That is, they have a tight-knit social order and caste system that revolves around a single queen who provides the offspring for the succeeding generations. The entire colony is powered by nectar and pollen collected from flowers in the vicinity of the hive. In 2005-2006 beekeepers noted that worker bees were quitting millions of hives, presumably dying as a result. This is termed Colony Collapse Disorder and its causes are still being investigated. Under suspicion are two mite species that can infect and kill entire colonies.

Honeybees are not natives of the New World.  They were carried west by Old World settlers, clerics and explorers. They are highly efficient pollinators and they make and store honey as well.  Honeybees are not the only organism that can pollinate plants.  Birds, bats, ants, beetles, butterflies and moths, and native bees can all do it: they just do not tend to go after one species of plant at a time.

We now know now that there are literally thousands of other species of wild native bees, flies, wasps, ants and many others. One of them will pollinate a plant for you if you ask it nicely or at least make it feel welcome around your garden.

  • Plant native perennial flowers that will provide the garden with a constant range of flowers lasting from spring into fall. Here are some suggestions: Spring blooners – crocus, hyacinth, borage, calendula and lilac; Summer- bloomers – bee balm, cosmos, echinacea, snapdragon, foxglove and hosta; Fall bloomers– zinnia, sedum, aster goldenrod, and milkweed.
  • Blossom colors Bees prefer white, yellow and blue blooms. Birds like red, orange and white. Bright, vivid colors, including red, yellow and purple, draw butterflies.
  • Plant a few flowering shrubs nearby. This will attract birds and more types of potential pollinators.
  • To attract ground-nesting bees (e.g., bumblebees, miner bees or sweat bees) make sure there is a few clear, sunny, well-drained patches of loose soil. Such areas should not be mulched or covered in any way.
  • Lay a shallow plate or two to collect rain or runoff and keep your pollinators happy.
  • Carpenter bees are good pollinators, and are attracted to fence posts, wood siding, and old wooden sheds and outbuildings. Laying out or hanging up untreated lumber pieces will provide them with something to excavate.
  • Consider making pollinator condos. These consist of bundles of small tubes of varying diameters (generally ¼ inch or less. Bamboo, hollow reeds, hollow weed stems, paper straws stems are common materials. They are often made with a small roof to keep them dry.

Photo credit USDA Forest Service

For a good start visit, “Gardening for Pollinators” in the Forest Service, U.S. Department of Agriculture website. https://www.fs.usda.gov/managing-land/wildflowers/pollinators/gardening

Honeybees have been successful because they can make a living on a wide range of plants over the growing season. Some other species can do the same, but others are active over only a short time period and still others may confine their activities to a limited set of plants.

A few comments:

Please note that native goldenrods and common milkweed are favored pollinator targets. Monarch butterflies rely on milkweed both as a source of food and protection against predators.

I could not help noticing the repetitive refrain that ran through much of the source material for this piece, viz: “This (name species) does not sting! That is incorrect as written. If it has a stinger or a formidable set of mandibles, it will sting or bite when threatened, alarmed or trapped in a crease of sweaty flesh or clothing. Any person who is allergic to insect stings, and any child that is inexperienced around potentially stinging insects should be encourages to play elsewhere. This is also the reason I did not discuss attracting wasps or hornets.

Finally, to give all your hard work its best of success, remember Black Gold® lawn and garden products will be waiting at a local supply store. Find one on the Black Gold® website.

 

About Teri Keith


Garden columnist, Teri Keith, has gardened for over 50 years in her home state of Indiana. She served as a longtime IGC nursery manager specializing in annuals and perennials in Bloomington, Indiana and still gardens with passion. Each year she plants and maintains over 50 flower containers, many gardens, and a large collection of lilacs.

Petunias Are Glorious plants By Teri Keith

Petunias Are Glorious Container Plants

It is time to plan your 2023 container garden, so start picking out which of the fabulous annuals available, but check out the petunias first.  The petunias we know today are a far cry from those that first appeared in 19th century gardens. Two species had been discovered in South America in the mid-1700’s: White-flowered Petunia axillaris and purple-flowered Petunia violacea. These were introduced into Europe in the early 1800’s.  Soon breeders in Germany and England began crossing them.  The result was the ‘garden petunias’, a group of plants in new colors and larger flowers. Referred to as Petunia x hybrid, the plants were not hybrids, as we know the term; they were chance crossings of species.  Double flowers occurred in only 20 to 30 percent of the plants grown from seed, the rest would be large singles. It took until the 20th century for hybridizers to formally bring Mendelian genetics, to bear on petunia plant breeding.

Now they come as packed doubles, looking like small peonies, ruffled petals, striped, spotted, new colors, and with different colored edges.

There are now several types of petunias.  All, except milliflora, have single or double flowers.

  • Grandifloras have 3 to 4 inch diameter blooms.
  • Multifloras have smaller flowers, 2 inches diameter; produce more abundantly, with sturdier flowers that withstand rain better.
  • Floribundas are the combination of top two, with the size, abundance, and sturdiness of both. Sounds like the best pick.
  • Milliflora have small, around 1 inch in diameter, and do not need cutting back.
  • Wave petunias are the last, and cascade over the sides of your containers. They also can be used as a ground cover, some as large as 10 feet square.  Waves will tolerate drier weather, and do not need dead heading.  Waves get 4 to 6 inches tall.

The colors of petunias range from, red, white, purple, lavender, pink, peach, orange, rose, yellow, salmon, green, blue, and yes black.  The last two colors took years of breeding.

Now, to some of the best varieties, available today.  Our gardeners from the past would be blown away by these flowers.  Look on the web to see where to buy them.

‘Black Cherry’ has deep red flowers, with black centers, and ‘Bordeaux’ pale lavender, with deep purple veins and centers.

‘Black Cat’ has velvety, true black flowers, and gets 12 inches tall.

‘Night Sky’ is one of the most unusual petunias, purple, with white spots.  Does well in baskets,

 

‘Limelight’ has magenta flowers, with lime green edges, and is 10 inches tall.

‘Purple Pirouette’ is one of my favorite petunias, with ruffled, double purple flowers and bright white edges.  It is 10 to 15 inches tall.

‘Wave Blue’ has bright, true blue, 2-inch flowers.  Gorgeous in a large container, or as a 3 to 4 foot groundcover.

Romantica ‘Isabella Red’ is one of the striped petunias, with intense red blooms and yellow stripes.

The Supertunia ‘Mini Vista’ series, have small 2-inch blooms, and are perfect for hanging baskets, growing 2 feet long.  They come in yellow, white, scarlet, white with purple stripes, velvet purple, and more.  Unlike the other petunias, they do not need cutting back.

The ‘Vogue Series’ has beautiful double flowers in shades of purple, pink, red, white, lavender with deep purple veins, and lastly one I have never seen anywhere else, having deep magenta petals, with light green ovals, not stripes.

And lastly ‘Crazytunia Mayan Sunset’, has yellow throats and bright rose edges.

Of course, these are not all of the wonderful petunias available.  Many of these, and more, are available online, as well as nurseries and stores.

Plant your petunias using Black Gold® Potting Mixes, such as  Black Gold® All Purpose Potting Mix, or  Black Gold® Natural and Organic Cocoblend Potting Mix.  Sprinkle with Osmocote Fertilizer, and repeat every 6 weeks.

Petunias like full sun, but can take about 1/3 shade.  Cut them back by 1/3 every 4 weeks, to keep new flowers growing, and be sure to hit the local flower sellers early to get the best ones.

Happy gardening.

 

About Teri Keith


Garden columnist, Teri Keith, has gardened for over 50 years in her home state of Indiana. She served as a longtime IGC nursery manager specializing in annuals and perennials in Bloomington, Indiana and still gardens with passion. Each year she plants and maintains over 50 flower containers, many gardens, and a large collection of lilacs.

Hanging Baskets by Mike Darcy

Hanging baskets and the month of May seem to go together. On a recent visit to several different garden centers, the selection of colorful hanging baskets was vast. It was not that many years ago that fuchsia baskets were the most common, but that is not the case today. Yes, there are certainly fuchsia baskets but there are so many more options available. Many of the baskets today, do not have just one type of plant, but multiple different plants in any one basket.

Calibrachoa Photo by Mike Darcy

If I had to pick one plant that I saw consistently in multiple baskets, it would be calibrachoa. Whether planted singly or with other plants, this petunia relative is ideal for trailing in baskets or pots and blooms all summer. Plants in garden centers are blooming now and with the wide range of colors available, it is easy to pick specific flower colors. Other plants that are widely used include, petunias, verbena, begonias, fuchsias, bacopa, geraniums, and lobelia.

Petunia ‘Night Sky’ Photo by Mike Darcy

Before making a purchase, consider where the basket will be in the garden. There are baskets made for sun, for shade, and for a sun/shade mix. There are two choices in purchasing hanging baskets, buying one that is already made, or making one yourself. Keep in mind that the already made baskets have probably been in somewhat of a controlled environment and might need a little extra care until they get established. For example, a basket made for a sunny location, might not have been in a full sun location and so it may need some protection on hot sunny days until it becomes adjusted to its new  environment.

Calibrachoa Photo by Mike Darcy

Making your own basket can be a fun project and you get to pick exactly the plants that you want. Making a basket is also a good way to get kids involved. Once you have selected the container, use Black Gold® Moisture Supreme Container Mix as your potting mix. This mix has excellent water retention qualities and on hot summer days, hanging baskets can dry out quickly. Select your plants and place them closer together than they would normally be in a flower bed. This will give you a blooming basket sooner than if the plants are spread apart.

Geranium, Calibrachoa, and Lobelia Photo by Mike Darcy

An herb basket can be ideal if a kitchen door is close by. Try planting basil in the center and plant thyme along the sides. This can be both beautiful and functional.

Watering and fertilizing are both key to keeping baskets looking good all summer. Being exposed to the elements, especially the sun and wind, baskets can become dry quickly. They will often need to be watered once a day. The city where I live has had a hanging basket program for many years and a maintenance is contracted to water them once a day, even if it rains. As the season progresses, the plants will get thick with leaves and the leaves can prevent the rain from reaching the soil. Because the plant is being watered so often, nutrients are often leeched out and need to be replenished. Fertilize weekly with a water-soluble plant fertilizer.

Fuchsia autumnale with red impatiens Photo by Mike Darcy

The choices for a basket are limitless. Try something new and enjoy your creation all summer!

 

 

About Mike Darcy


Mike lives and gardens in a suburb of Portland, Oregon where he has resided since 1969. He grew in up Tucson, Arizona where he worked at a small retail nursery during his high school and college years. He received his formal education at the University of Arizona where he was awarded a Bachelor of Science Degree in Horticulture, and though he values his formal education, he values his field-experience more. It is hard to beat the ‘hands on’ experience of actually gardening, visiting gardens, and sharing information with other gardeners. Mike has been involved with gardening communications throughout his adult life. In addition to garden writing, he has done television gardening shows in Portland, and for over 30 years he hosted a Saturday radio talk show in Portland. Now he writes, speaks, gardens and continues to share his love of gardening. To be connected to the gardening industry is a bonus in life for Mike. He has found gardeners to be among the friendliest and most caring, generous people. Consequently, many of his friends he has met through gardening.