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What Are the Benefits of Raised Bed Gardening?

What Are the Benefits of Raised Bed Gardening?

“Are raised beds easy to grow in and maintain? I live in North Carolina. During the winter can I put a tarp-type Greenhouse over them to help protect vegetables from the cold.” Question from Karen of Rougemont, North Carolina

Answer: There are many benefits to growing in raised beds and very few downsides. Here are the pros and cons of raised bed gardening, followed up by methods to help maintain your garden through winter.

Pros of Raised Bed Gardening

  1. Deeper, Lighter Soil: If you fill your raised beds with good soil from the start, it helps root crops grow deeper and all plants set deeper roots for higher yields. We recommend using either Black Gold® Natural & Organic Raised Bed & Potting Mix or one-part ground soil to one-part Black Gold Garden Compost Blend. Top off with soil or amendment yearly.
  2. Easier Weeding: Raised beds have looser soil, are higher, and often cover a smaller area, making them easier to weed. It’s also easier to harvest after rain and stay clean when beds are surrounded by pebble, straw, or cut grass.
  3. Easier Harvest: Because they are raised, the beds are easier to harvest and replant.
  4. Easy Planning and Rotation: When you have just a few geometric beds, it is easier to design plantings for yearly rotation (Click here to learn more about the importance of rotating crops)

Cons of Raised Bed Gardening

  1. Initial High Cost: Raised beds are not inexpensive to install if you start out right.
  2. Less Space for Big Crops: Unless your beds are large and you have trellising, you have less space for large crops like vining pumpkins, squash, and melons or multiple rows of corn.
  3. Need Replacement: Eventually your beds will need to be replaced. Metal and plastic options last longer. Cedar raised beds are also long-lasting. Never use treated wood to create raised beds because the wood contains heavy metals that can leach into the soil and be taken up by crops.

Raised Bed Covers

Floating hoop covers are the easiest and best insulating covers to extend growing in raised beds. You also may consider adding a cold frame to your raised bed plan. They make it easiest to continue growing herbs and greens through winter. (Click here to learn more about cold-frame gardening.)

I hope that this helps!

Happy Gardening,

Jessie Keith

Black Gold Horticulturist

Why Does My Amended Container Soil Become Compacted?

Why Does My Amended Container Soil Become Compacted?

“Why does the soil in my container garden compact super tight? I use garden soil mixed with potting mix and perlite.” Question from Nell of Salem, Indiana

Answer: It sounds like your soil ratios are off, and your in-ground soil is high in clay. If you have not added the right amount of Black Gold amendment or potting soil to clay-rich ground soil, then compaction can be a problem. This is because clay-rich soil has very small particles and becomes compacted very easily. When you add organic matter, such as the peat moss and aged bark found in our potting soil, it lifts the soil, making it more porous and aerated, while allowing it to hold water better. Mineral ingredients, like perlite, also increase aeration and drainage.

You have two options. Either fill your containers with nothing but potting mix–we recommend either Black Gold Natural & Organic Potting Mix or Black Gold Natural & Organic Raised Bed & Potting Mix–or mix your ground soil with more organic amendments. We would recommend adding a 1:3 ratio of ground soil to Black Gold Garden Compost Blend with added Black Gold Perlite to maintain porosity. (Click here for more tips for amending clay-rich soil and click here to learn more about succeeding with container gardening.)

Happy gardening,

Jessie Keith

Black Gold Horticulturist

What Hardy Roses will Tolerate Partial Shade?

What Hardy Rose will Tolerate Partial Shade?

“What rose will tolerate dry partial shade in zone 5b?” Question from Trish of Newton, New Jersey

Answer: Most roses are full-sun shrubs that require 6 or more hours of sun per day and average water, but there are a few that can take partial shade (4 to 6 hours of sun per day). Amending the soil with peat moss, applying a 2-3-inch layer of quality mulch, and providing them with drip irrigation are simple fixes that will overcome dry soil troubles.

Roses Tolerant of Partial Shade

Most shade-tolerant roses are contemporary varieties of antique shrub roses. Some of the best have been bred by the English rose breeder, David Austin (click here to view 6 David Austin roses for partial shade that are hardy to your zone). Another for partial shade is the apricot-flowered shrub rose Roald Dahl, which I have growing in my garden. The ever-blooming shrub rose is quite fragrant and easy to grow. If you are interested in a climbing rose for partial shade, try the French antique rose, ‘Zéphirine Drouhin‘. Its large, rose-pink flowers are fragrant, and its twining stems are thorn-free–another bonus.

To learn more about how to grow roses, I recommend watching the video below.

Happy rose growing,

Jessie Keith

Black Gold Horticulturist

When is the Best Time to Plant Lettuce in California?

When is the Best Time to Plant Lettuce in California?

“When generally is the best month to start lettuce planting [in California]?” Question from Rebekah of Clovis, California

Answer: Lettuce is a cool-season crop, which means that it thrives in cool weather and can even take a light frost but not hard freezes. When the weather becomes hot, most lettuce varieties quickly become bitter-tasting and set seed (bolt).

Based on the Clovis climate summary, your weather remains cool enough for lettuce from October through to April or May. Within this time, you should be able to grow more than one crop. Just be sure to grow it in fertile soil and keep the beds well irrigated during dry weather. We recommend drip irrigation for dry California climates. (Click here to learn about adding drip irrigation to raised beds.)  If you anticipate an unexpected frost, cover your plants with frost cloth.

Clovis, California Climate Summary

I encourage you to watch the following video about the 10 best lettuce varieties and how to grow them from seed.

 

Happy lettuce growing,

Jessie Keith

Black Gold Horticulturist

How to Grow Your Own Blueberries

Everyone who loves to grow their own food should grow their own blueberries. Blueberries are ideal for edible landscaping. They grow well in-ground or in containers. They’re bushy, attractive, and their leaves turn brilliant shades of orange, purple, and red in fall. Before adding them to your yard or garden, it’s good to know what types are available. You will be glad that you learned how to grow your own blueberries.

Blueberry Varieties Listed

Highbush Blueberries: ‘Blue Ray’ has extra-large-fruits early to mid-season, ‘Duke’ is high-yielding with upright shrubs, and ‘Elliott’ is a good late-producer.
Rabbiteye Blueberries: ‘Tifblue’ has large berries midseason and ‘Brightwell’ produces large clusters early to midseason.
Southern Highbush Blueberries: large-fruited ‘Cape Fear’, robust ‘Sharpblue’, and upright ‘Legacy’, which has very large, tasty fruits.
Designer Blueberries: The boxwood-like Blueberry Glaze® and cute, round Jellybean® have delicious fruit, tidy habits, and bright fall color (from Bushel & Berry).

Click Here for the Step-by-Step pdf About How to Grow Your Own Blueberries

Can I Grow Green Beans in a Greenhouse?

Can I Grow Green Beans in a Greenhouse?

“Can I grow green beans in a greenhouse?” Question from Angie of Fort Bragg, California

Answer: Absolutely. Green beans, whether pole beans or bush beans, can be grown in a greenhouse if given good soil, full sun, regular moisture, and temperatures that do not get too hot. Green beans grow best in temperatures between 50 and 85 degrees F. If you have only a small space in which to grow, I recommend bush beans. If you have a hoop greenhouse with a soil floor then you can grow pole beans in-ground.  I encourage you to watch the video about growing beans to learn more about raising these tasty summer vegetables.

Happy gardening,

Jessie Keith

Black Gold Horticulturist

What Medicinal Herbs Grow Well in Central Florida?

What Medicinal Herbs Grow Well in Central Florida?

“What Medicinal Herbs Grow Well in Central Florida? I moved to Florida and I want to know which native medicinal herbs to look for and grow here at my new home.” Question from Susan of St. Pete Beach, Florida

Answer: There are lots of medicinal herbs that will grow well in your Zone 9 garden. I recommend that you read our article titled Grow an Apothecary Garden: Flowers and Herbs for Healing as well as our article about growing an Herbal Tea Garden and one titled Garden Cold and Flu Remedies. Most of the herbs in these articles will grow well in your area. You can even grow your own healing fresh ginger indoors or outdoors in pots in Florida (click here to learn how)! I hope that these resources help.

Happy gardening,

Jessie Keith

Black Gold Horticulturist

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.