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My Yard Is Low and Wet. How Can I Garden?

My Yard Is Low and Wet. How Can I Garden?

“How do I plant a garden when most of my yard holds water after the rain?” Question from Kim of St. Clair, Michigan

Answer: You essentially have two options. Either build raised gardens (click here to learn more about raised bed gardening) or go with the flow and plant a wetland or rain garden. I have an area of my yard where an old stream used to flow, and it’s always wet in spring. Instead of trying to build it up, I created a wetland meadow garden complete with pink swamp milkweed (Asclepias incarnata, click here to learn more about milkweed), swamp hibiscus (Hibiscus moscheutos, check out Summerific® Evening Rose‘), ornamental rushes, Joy-Pye-weed, and other beautiful wetland bloomers. (Click here to learn more about rain gardening.)

There are also plenty of very pretty, very hardy shrubs that like moist soil or periodically wet soil. These include winterberries (Ilex verticillata, click here to read more about winterberry), redtwig dogwood (Cornus sericea, click here to read more about redtwig dogwood), and Sugar Shack® buttonbush (Cephalanthus occidentalis Sugar Shack®).

I hope that this information helps. Seasonally wet ground is plantable and can be beautiful if you plant the right things.

Happy gardening,

Jessie Keith

Black Gold Horticulturist

10 Essential Tips For New Vegetable Gardeners

The new vegetable gardener will succeed if given the right information from the beginning.

With decades of vegetable gardening experience under my belt, it’s easy to take the years of knowledge for granted. It’s like riding a bike. I garden on cruise control and react or learn quickly when faced with a new challenge. In turn, years of teaching new gardeners have kept me in touch with the challenges they face. Sound, step-by-step advice is invaluable–potentially averting years of mistakes and poor yields. Getting the big picture of a new garden venture from the start will set the wheelbarrow rolling in the right direction. The new vegetable gardener will be quickly rewarded if modest goals are established from the beginning and time is set aside for the project.

Tips for the New Vegetable Gardener

Here are my top ten tips for helping new vegetable gardeners succeed in the first year from the ground up. (Note: If you plan to grow vegetables in containers, click here to read an article about successful vegetable container gardening, click here to learn how to grow spring vegetable containers, and click here to learn how to grow tomatoes in pots.)

Planning your garden on paper will help you visualize and plan for the project.
  1. Plan Ahead: Determine your garden’s location, size, and crops before you break ground. Vegetable gardens require full sun (8-hours or more per day) and soil that drains well. Gardening is a commitment that often takes more time and labor than anticipated. If you have never gardened before, plan small in the first year to keep it enjoyable and manageable. It will help you succeed from the start and determine how to grow your garden in future years. (Click here for a good article about planning a garden, and click here for an article about rotating crops through the season.)
  2. Sod removal takes work but is worth the effort.

    Start Clean: Remove all of the turf from your soon-to-be garden bed. That means manually skimming off the sod with a sharp spade or using an automated sod cutter, which can be rented. I recommend the latter if you have planned a large garden. The bed should be small enough for you to reach into from all sides or large enough to add a walkway for easy access. Square or rectangular beds are easiest to mow around and manage.

  3. Enrich your soil from the beginning!

    Don’t Skimp on Soil: Your garden is as good as its soil. When siting it, choose a well-drained spot. If low ground is a problem in your yard, opt for a raised bed (Click here to learn more about preparing a raised bed garden, and click here for a raised bed plan). For garden success in year one, liberally feed your soil with organic matter, such as Black Gold Canadian Sphagnum Peat Moss, Garden Soil, and Garden Compost Blend, especially if your soil is rich in clay or sandy. Add at least 3 inches of the amendment to the soil surface, and till it to a depth of at least 8 inches. Use the amendment application formula below to determine the amount you will need.

    Amendment Application Formula

    ([area to cover] ft2 x [depth in inches desired] x 0.0031 = ___ yd3).

    Example: If you wanted to cover a 20 square foot area with 2 inches of compost, the result would be: 20 ft2 x 2 inches of compost x 0.0031 = 2.48 yd3.

    (Click here for a full overview of how to prep a new vegetable garden from start to finish.)

  4. Berming planting areas and covering with compost and straw will save weeding time and boost crops.

    Raise and Cover: Tilling and adding lots of fresh organic material will loosen and lift your soil to enhance drainage and aeration for better root growth. To take it one step further, I always rake or hoe soil up into berms to maximize drainage and keep beds light for better root growth. Berming is especially helpful for root crops, like carrots, potatoes, and beets, and deep-rooted plants, like tomatoes. Finally, I add mulches appropriate for vegetable gardens, like seed-free straw, compost, mushroom soil, grass clippings, or leaf mulch, to keep weeds down. I generally put straw along walkways I’ve established in my garden and compost on the planting areas. Avoid bark mulch of any kind in vegetable gardens because it binds nitrogen, which is detrimental to heavy-feeding vegetables.

  5. A little fertilizer will go a long way.

    Fertilize: Good fertilizer formulated for vegetable growing is essential for bumper crops. Any all-purpose granular or slow-release vegetable fertilizer will do, though I recommend feeding tomatoes with a food specially formulated for their needs. Tomatoes are very heavy feeders that require a wide variety of nutrients to perform their best. Follow the product instructions to keep them well fed.

    Look for the AAS logo! (Image thanks to All America Selections Winners)
  6. Choose Good Varieties: Don’t pick just any old tomato, pepper, or bean for your garden. Do your research and pick the best when it comes to yields, performance, and flavor. If you are not certain, always select award-winning plants, such as All America Selections Winners. These tend to be as full-proof as you can get. It is also wise to choose disease-resistant varieties, so keep a lookout for these as well. (Click on the links to discover our favorite sauce tomatoes, lettuce, green beans, mini vegetables, carrots, and fast-growing vegetables.)
  7. Lettuce is an easy spring vegetable that needs cool weather.

    Know Planting Times: It is essential to know when you can plant a vegetable, what temperature it likes best, and how long it will take to produce. Vegetables are broken down into cool-season and warm-season types, though some will grow well from spring to fall. Cool-season vegetables, like cabbage, lettuce, peas, and radishes, grow best in cool spring or fall weather, while warm-season crops, such as corn, okra, peppers, tomatoes, and squash, need the heat of summer to yield. Some grow very quickly, and others take months to produce. For example, radishes can be ready to harvest in as little as 20 days, but some pumpkins can take 120 days to produce fruit. So, knowing a crop’s days to harvest is important. Finally, you need to know your last frost date (click here for yours) to determine when it is safe to plant tender vegetables and fruits outdoors.

  8. Some pumpkin plants can grow to 20′ across!

    Know Plant Needs and Sizes: Identify each plant’s height and width to determine its garden footprint. You also need to know if supports, like tomato cages or bean and cucumber trellises, will be needed. One important tip for tomato growers is that bush (determinate) tomatoes only reach 1-3 feet and need small cages or stakes, but vining (indeterminate) tomatoes can reach 6-8-feet high and wide, so tall, strong cages are required. Follow spacing guidelines to give your vegetable the space they need to blossom.

    When ripe, tomatoes are fully colored and give slightly when pressed.
  9. Know When to Harvest: When is it ripe? Tomatoes and peppers will be fully colored when ready to pick. Beans should be plump and reach the advertised length. Zucchini and summer squash are best harvested small but firm. And, you will know when beets, carrots, and radishes are ready to harvest when their bulbous tops become visible along the soil surface. If you are not sure when to harvest a crop, ask us through our free horticultural advice service, Ask a Garden Expert.
  10. Removing weeds as you see them will keep them from taking over.

    Keep It Clean: Weed, weed, and weed some more. Even when you mulch your beds, they will arise. Weeds compete with vegetables for resources and can quickly overwhelm a garden if ignored. They may also harbor diseases and attract pests. Pull or hoe weeds as you see them. Even if you weed every few days or even every week, you will have few to no weed problems, which will give you more time to focus on plant care and harvest. Investing in good weeding tools makes the task lighter. I am never without my weeding knife (Hori Hori), strong hoe (Prohoes are the best), and Korean hand plow (Ho-Mi).

Reach out to friends, family, books, and online references when you have gardening questions. There’s always more to learn and new plants to discover. And, if you can’t find an answer, ask us a gardening question for free at Ask a Garden Expert. You can also search the hundreds of questions we have already answered. It’s our goal to help gardeners succeed.

Can I Grow Plants in Pure Compost?

“I have some large compost bins, which produce a lot of compost. Can I plant things in pure compost, or do I need some “dirt” with inorganic materials for the best results?  How much inorganic material do I need?” Question from Naomi or Oakdale, California

Answer: Congratulations on your composting success! Compost is one of the best garden amendments available. You can plant in straight compost, but I suggest incorporating it into your sandy garden soil or mixing it with other additives if you want to use it for container plantings.

Compost as a Garden Amendment

When using compost to fortify gardens, incorporate it evenly into your natural soil. Add it liberally if your soil is of very poor quality–especially if you want to grow crops that need fertile soil, like fruits and vegetables. You might also consider building raised beds to make the most of your compost bounty.

Compost as a Potting Mix Additive

If you plan to use your compost for container plantings, include other additives to encourage better root growth in the long term. These include Black Gold Canadian Sphagnum Peat Moss, perlite, and vermiculite.  The peat moss with lighten the mix and give it more structure and porosity, while the perlite will help increase drainage. Vermiculite holds water, adds porosity, and holds and distributes nutrients. A well-rounded potting mix would include 40% compost, 30% peat moss, 20% perlite, and 10% vermiculite.

I hope that this helps, and keep composting!

Jessie Keith

Black Gold Horticulturist

When Should I Trim Tropical Hibiscus?

“When is the best time to trim tropical Hibiscus?” Question from Jane of Tampa, Florida

Answer: You can prune these evergreen tropicals at any time to manage plant size, encourage denser growth, and induce more flowering, but pruning is best done in late winter when they are blooming very little.

These tropical Chinese shrubs flower on new wood, and pruning encourages the development of new wood, so it’s a great way to get them to bloom more. Here are five good hibiscus-pruning tips.

  1. Late winter is generally a good time to prune, but wait until the weather is sure to be consistently warm.
  2. Use clean, sharp pruning shears.
  3. Make 1/4-inch angled cuts above the leaf joints (the angle’s point should be towards the leaf joint).
  4. Remove sprawling, unruly branches that ruin the plant’s bushy shape.
  5. Refrain from pruning again until the following year unless your shrubs become too overgrown.

Just be sure to refrain from pruning when your hibiscus are in full flower.

Happy gardening!

Jessie Keith

Black Gold Horticulturist

How Do I Harvest and Store Hardneck Garlic?

“I planted garlic bulbs for the first time and chose the hardneck variety ‘Music’. I understand that they will be fully mature around the first of August. Where is a good place to cure the bulbs for the duration? I live in a USDA Hardiness Zone 6 area.” Question from Belinda of Fort Wayne, Indiana

Answer: I have actually grown ‘Music’ garlic with great success. It’s a hardneck garlic, which means it has hard “necks” above the bulbs that keep them from being braided, unlike softneck garlic. Hardnecks are also more cold hardy and have fewer, larger cloves than softnecks. ‘Music’ is also a porcelain garlic, which means thin, white, satiny skins surround the extra-large cloves.

Time to maturity depends on the garlic variety and growing location. ‘Music’ is an early to midseason variety. In Indiana, I would expect it to be ready for harvest sometime in July.

In spring, your garlic plants will emerge and leaf up. By summer, each will have tall, upright, oniony leaves and produce a heron-shaped stem and bud; remove the stems and bulbs as they appear, or they’ll deplete the cloves below of energy. But, don’t throw them the stems away. They taste great stir-fried or sautéed.

Dig up the garlic bulbs when the leaves have declined significantly and start to turn brown. Wipe the bulbs clean of dirt, and hang them to dry for a week or two. ‘Music’ is an unusually good keeper for a hardneck. Count on its bulbs to keep for up to several months, if properly stored in a cool, dark place. (Click here for more tips on how to grow garlic.)

Enjoy your fresh garlic next season!

Jessie Keith

Black Gold Horticulturist

Can I Grow Asparagus in Central Florida?

“I’m looking for asparagus that will grow in USDA Hardiness Zone 10b.” Question from Lori of Venice, Florida

Answer: Asparagus generally survives in USDA Hardiness Zones 3-8 and requires a winter dormancy period to successfully grow and produce spears.  In northern regions, plants can produce for up to 30 years, but they don’t tend to fare well down south where winters are warmer.

With that said, some varieties will produce spears in Central Florida, but they generally stay productive for just three to five years. One of the best of these varieties is the California-bred ‘UC-157’. (Click here for a good source.) This is the asparagus that you want to grow in your part of the world. To get special planting instructions for Central-Florida gardeners, visit the University of Florida’s page on the subject (click here to view).

Happy asparagus growing!

Jessie Keith

Black Gold Horticulturist

I Need Tips for Cold Frame Gardening

“With which of your products does one prep the soil for winter crops in a mini greenhouse, type Cold Frame Mini Green House by Juwel (I just got one)?  It will face South-East.  Any experience growing with this method?  Any easy crop recommendations?” Question from Judy of Yarmouth Port, Massachusetts

Answer: Thank you for your questions. I have gardened in a cold frame and observed successful and unsuccessful cold-frame gardening. In your northern garden, I would place the cold frame in a sunny south-facing spot close to your home. The reflective heat from the house will provide some winter protection, and the warm sun will help heat the cold frame. If you can, I would also recommend sinking the cold frame a few inches below the soil level, even though I see that the frame you have purchased has clear sides. Really good cold frames are set below the soil level to better hold heat in winter. On unexpectedly hot fall or winter days, be sure to prop the top open to keep the internal temperature from getting too hot.

Cold-Frame Soil

As far as soil, I would amend your ground soil at the base of the frame with good compost, like Black Gold Garden Compost Blend, at a 1:2 ratio of soil to mulch. The addition of earthworm castings would also be enriching. The lighter and more fertile your soil, the better your veggies will grow.  Adding a layer of compost as a protective mulch would also be helpful. (Click here to learn more about creating the best soil for raised beds.)

Cold-Frame Vegetables

It is essential to grow cool-season, frost-resistant crops. These are largely winter greens and root crops. The greens that I recommend include mâche, kale, lettuce, and spinach. The best root crops include winter carrots, radishes, and turnips. Parsley and chives are good herbs to try. (Click the following link to learn more about growing winter root crops and click this link to learn more about growing cool-season greens.)

I hope that this information helps!

Happy gardening,

Jessie Keith

How Should I Overwinter Gladiolus in Southern Florida?

“We live in Miami and planted gladiolus bulbs this spring. They bloomed beautifully! How are we supposed to cut them, so they bloom next spring? Should we dig them up or just cut the leaves?” Question from Brenda of Miami Florida

Answer: Gladiolus hybrids will thrive year-round as perennials in your Miami garden (USDA Hardiness Zone 10), so they don’t need to be dug up in fall. Cut back the foliage as it starts to turn yellow. The plants will experience some dormancy before putting forth new foliage and then flowers.

Gladiolus species are native to Africa, Southern Europe, the Middle East, and Asia and garden hybrids are mixes of quite a few species from these areas. Where native, gladiolus undergo either a cold-season or dry-season dormant period. Because you have very little seasonal cold, the main thing that will kill your glads is excessive soil moisture during dormancy. So, make sure that their soil is fast draining and very porous. Plant them in light soil that is raised and well amended with organic matter, such as Black Gold Peat Moss. You may also want to amend further with a mineral additive, such as Gran-I-Grit or even sand, to further increase drainage. Over time, happy gladiolus can naturalize in southern gardens.

Some of my favorite glads are heirlooms with old-fashioned charm (click here for a good source). I also love the elegant Byzantine gladiolus (Gladiolus communis ssp. byzantinus), which is a species bearing long-blooming spires of purple-red summer flowers.

I hope that this information helps!

Happy gardening,

Jessie Keith

Why Aren’t My Heirloom Tomatoes Producing Fruit?

“My heirloom tomato plant is growing beautifully. However, it has not one tomato on it, while another bush, under same growing conditions, is more prolific though it still does not have ample tomatoes. Is there something I am doing/not doing correctly? During the long summer days the beds do get over 6 hours of sun a day, as the days are getting shorter they are down to about 51/2 right now. I use no chemical pesticides.  I only have two tomato plants and check them daily.” Question of Ann Marie of Holbrook, New York

Answer: Several things can keep otherwise healthy looking tomato plants from producing ample good fruit. These are 1)  imbalanced nutrition and 2) too little sunlight. Tomatoes are heavy feeders that need high nutrition, regular watering, and at least eight hours of direct sunlight for good fruit production. All of these are necessities.

Fertilizer is easy. Choose a fertilizer formulated for tomatoes and feed your plants regularly, as recommended on the package. Adding additional bone meal is also helpful in reducing the chance of blossom end rot, a common nutrient deficiency of tomatoes.

Sunlight may not be as easy to provide, depending on your yard, but eight or more hours are needed for fruit-producing vegetables, like tomatoes, peppers, cucumbers, and squash. More is even better. I plant my veggies where they can get all-day sun for maximum output.

If you plant only a couple of tomatoes, try growing them in large containers and moving them to a sunnier part of the yard. This will enable to provide them with more sun and better control their soil, nutrients, and water. Black Gold Natural & Organic Potting Mix is a great potting mix choice. Please watch the video below to learn more about how to grow great tomatoes in containers.

I hope that these growing tips help!

Happy gardening,

Jessie Keith

Black Gold Horticulturist