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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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Plant peonies in spring or fall

Question: I have a flower bed in a spot that gets morning sun, and I want peonies in my garden. Can I plant them now?
peonies gbYes, early spring is a good time to plant peony rhizomes. They can also be planted in the fall. Once they’re established, peonies are finicky about being moved, so it’s a good idea to make sure the new flower bed is in good shape before you put them in the ground.
Peonies prefer a spot in full sun or with light afternoon shade, with good drainage, and away from the roots of trees and shrubs that would compete for water and nutrients. They can be susceptible to powdery mildew, so make sure they are not crowded and there is good air circulation in the bed.
Work plenty of organic matter and a high-phosphate fertilizer into the soil, and set the roots 1 inch deep.
Peonies may not bloom the first year they are planted, but they should bloom every year after that.

In the garden this week

It’s spring in Middle Tennessee (Zone 7a on the USDA Plant Hardiness Zone map, where The Garden Bench calls home). Here are a few late-March tasks on our gardening to-do list:

  • Replenish mulch around roses, azaleas and other shrubs.
  • Dig and divide, hardy mums, daylilies that have gotten too crowded.
  • Set out transplants of herbs that can stand up to a few more chilly days: parsley, cilantro, sage, chives, oregano are among the garden and kitchen favorites.
  • Trim buddleia or cut it back before new leaves emerge.
  • Last chance to mow over winter-browned liriope; new shoots are beginning to come up from the roots.
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