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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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Give mums a trim now … or later

Question: In your opinion should chrysanthemums be cut back in the late fall or spring?

Different sources say different things about what to do with mums after they are browned by frost. One source advises to cut them back in the spring; another says to cut them back to about 8 inches after they finish blooming in the fall.

In my experience, either way seems to work. I usually leave them until spring in my garden beds, which tend to be informal (some might call them “messy”), and often the new leaves start to come up from the roots very early — as early as February, if we have a mild winter. At that time, I cut back all the dead stems and divide and move clumps where necessary, and they grow happily and vigorously through the spring and summer. I cut them back a couple of times during the summer to delay flowering, and they start to bloom in the fall.

If you prefer a tidier look throughout the winter, cut off the blooms after they turn brown. They will rest during winter and be ready to pop up again early next spring.

 

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