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  • March garden tips & tasks

    If your fescue lawn looks a little skimpy, overseed early this month. Fescue grows best when the weather is still cool.

    Clip dead stems from perennial herbs – thyme, sage, lavender, rosemary. Pruning encourages vigorous new growth.

    Prune nandinas, flowering quince and other airy shrubs by reaching in and removing about a third of the branches at ground level.

    Remove mulch or leaves that may be covering perennials in garden beds.

    Prepare a new garden bed: Have the soil tested (check with your county’s Extension service). Remove grass and dig or till soil 8 to 10 inches deep and mix with soil amendments and organic matter to improve drainage.

    Add fertilizer lightly to perennials as soon as you see new growth. Too much fertilizer may result in lanky growth.

    Herb transplants that don’t mind cool weather -- parsley, cilantro, sage, oregano – can go in the ground now.

    When you cut daffodils to bring inside, cut the stems at an angle and place them in water right away. Change the water in the vase daily to keep them fresh longer.

    Save the date - Middle Tennessee garden events

    The Perennial Plant Society's annual Plant Sale will be April 8, opening at 9 a.m. at The Fairgrounds Nashville. The sale offers newly released and hard-to-find perennials from top local nurseries -- more than 450 varieties of perennials, vines, grasses, shrubs and annuals. The event supports local scholarships for Tennessee horticulture students and monthly gardening programs, open to the public, at Cheekwood Botanical Gardens. For information visit www.ppsmtn.org.

    The Herb Society of Nashville's annual Herb Sale will be April 29, 9 a.m. - 2 p.m. at The Fairgrounds Nashville. The sale will offer heirloom vegetables, rare varieties of perennial and annual herbs, handmade pottery herb markers and more. To learn more, visit herbsocietynashville.org.

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Leafy lawn = free mulch

Our yard is about to be covered with maple and oak leaves. Can leaves be used as mulch in flower and vegetable beds?

After the leaves fall, they can be used as mulch in the garden.

All those trees that are turning brilliant colors are about to flame out and drop their leaves to the ground. Yes, most of them can be used as mulch, and they can benefit your beds. Here are some guidelines for using leaves as mulch from the UT/TSU Extension office:

*Use a 3- to 4-inch layer of shredded leaves around trees and shrubs in annual and perennial flower beds. Notice they suggest “shredded.” Leaves that have been chopped up will decompose faster. They also will, no doubt, stay in place better than whole leaves if a gusty wind comes along.

*Oak leaves may change the pH of the soil over time, making it more acidic, so you may have to apply lime to maintain a favorable number. If your beds are mulched primarily with oak leaves, you should have the soil tested about every three years. Oak leaves are also tougher and decompose more slowly, so it’s especially important to chop them before you use them to cover your perennial beds. Otherwise, when spring comes, a thick layer of oak leaves could smother emerging plants.

*Leaves can be mixed into kitchen garden beds and in beds where you plant annual flowers. Most of the leaves will decompose before planting time next spring. A bonus: if you have heavy clay soil, a thick layer of leaves tilled into the soil will improve the soil structure. Free mulch, plus better soil: win-win.

 

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