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Garden Soil

The ideal garden soil is deep, loose, fertile, and well-drained (internally as well as on the surface), has plenty of organic matter, and is free of weeds and diseases. Such soils are difficult to find, but with proper preparation and management, less-than-ideal soils can be productive.

Water moves quickly through an internally well-drained soil and never completely shuts off air movement. Drainage is important because roots cannot develop, live, and function without a constant supply of oxygen.

Clay soils dry slowly after a rain because the spaces in them are small and water moves through them slowly. Sandy soils, on the other hand, have many spaces and dry out quickly. Clay and sandy soils can be partially changed to substitute for a rich loam by adding organic matter. Increasing the organic matter content of a clay soil improves the tilth, makes it easier to work, and improves the internal drainage. Adding organic matter to a sandy soil increases its water-holding capacity and improves its fertility.

The garden soil affects the way vegetable plants grow and look. When soils are cold, wet, crusty, or cloddy, seedlings are slow to emerge and some may not survive. Root rot diseases may take a heavy toll on seedlings, especially beans. Other soil-related plant symptoms are short plants, slow growth, poor color, and shallow and malformed roots. Soil symptoms of poor structure are crusts, hard soil layers below the surface, standing water, and erosion.

Increase the soil’s organic matter content by adding manure, composted leaves, sawdust, bark, or peatmoss; or by turning under plant residues like sweet corn stalks after harvest, and green manure crops (soybeans, rye, southern pea plants, and others). Plant residues should be free of diseases if they are to be added to the garden soil. Cover crops, such as clovers and vetch, planted in the fall prevent soil erosion and leaching of plant nutrients. They also provide organic matter and nitrogen when turned under in spring.

Manures vary in their content of fertilizing nutrients. The amount of straw, age, exposure to the elements, and degree of composting change their composition. Be careful not to over-fertilize when applying chicken litter to garden soil. Use no more than 200 pounds per 1,000 square feet of garden space. Animal manure is lower in nutrient content than poultry manure and can be applied at the rate of 250 to 300 pounds per 1,000 square feet.

Overuse of manures can add so much salt to the soil that plant growth is harmed. Most organic materials release some nutrients quickly and the rest over a period of time. (See Organic Gardening, page 5.) Even though adding organic matter improves soil fertility, manures and plant residues are not balanced fertilizers, and soils require additional fertilizer. Test soil every third year to be sure.

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Publication Number: P2364
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News

Rich, wide, dark-green leaves with white veins rise from an unfurling center.
Filed Under: Vegetable Gardens January 18, 2019

If there’s one vegetable that could be considered the ultimate home-grown vegetable in Mississippi, it has to be collards.

Collards were chosen as a 2019 Mississippi Medallion winner because they are considered absolutely necessary for true Southern cuisine. As a bonus, they’re really easy for home gardeners to grow.

A man with a white goatee and dark-framed glasses leans on a table behind a small LED table lamp and a tray of seedlings. He wears a blue floral Hawaiian shirt and brown hat.
Filed Under: Vegetable Gardens January 18, 2019

For people who love gardening, the long, dark, cold winter months can be torture. Gardening catalogs are fine, but their allure can only last so long before we want to get our hands back in the soil! (Photo by Jonathan Parrish/Cindy Callahan)

Bright red and green ornamental peppers stand out against a background of green leaves and a small Christmas tree with multicolored lights.
Filed Under: Cut Flowers and Houseplants, Vegetable Gardens December 4, 2018

If you want to spice up your Christmas décor this year, add some ornamental peppers to your indoor and outdoor displays. (Photo by Jonathan Parrish/Cindy Callahan)

A group of people stand behind a waist-high, elevated raised gardening bed full of green potato foliage.
Filed Under: Flower Gardens, Herb Gardens, Vegetable Gardens November 16, 2018

Not into conventional gardening? A salad table just may be for you.

With these elevated gardening beds, you can grow fresh vegetables and herbs throughout the year right at your fingertips. These tables work well in small spaces and eliminate the physical demands of an in-ground garden. (Photo courtesy of Carla Moore)

Fingers steady an upside-down flower pot as a drill bit pierces the bottom to make drainage holes.
Filed Under: Cut Flowers and Houseplants, Flower Gardens, Herb Gardens, Vegetable Gardens, Youth Gardening November 6, 2018

You’ve got a lovely container, and you want to put a plant in it. But if that container doesn’t have drainage holes, you’ll end up with a dead plant. (Photo by Jonathan Parrish/Cindy Callahan)

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