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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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Prune azaleas soon after they bloom

Our azaleas are too large and need to be trimmed. When is the best time to prune them?

AzaleaIn general, azaleas rarely need pruning, but if you find you need to reduce the size of the shrubs, the best time to prune them is right after they finish blooming. The buds for this year’s azalea blooms began forming last summer, so if you prune now, before they bloom, it means you are cutting off many of the flowers before you have a chance to enjoy them.

Southern Living garden writer Steve Bender, who edited the new edition of the Southern Living Garden Book, suggests this method for pruning azaleas: determine where the height or width needs to be reduced. Then, using hand pruners (or loppers, if the branches are thick), reach in and cut back individual branches to different lengths to create a mounding shape. Do not, he admonishes, use hedge trimmers to shear azaleas. Besides looking boxy and unnatural, this results in flowers and foliage that grow only on the outer portions of the shrubs.

Two other notes from Steve’s advice, which you can read here:

-If you do the job at the proper time, you can cut evergreen azaleas back pretty hard – even back to bare wood — and they should survive and flourish.

-If yours are the ‘Encore’ type of azaleas, which bloom in spring and again in late summer or fall, prune right after the spring bloom.

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