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  • Upcoming Garden Events in Middle Tennessee

    March 1 – 4: Nashville Lawn & Garden Show, Fairgrounds Nashville: The annual all-indoors garden event that features live garden displays, lectures, vendors, floral designs and special programming Wine Festival featuring Tennessee wines is Saturday (March 3), noon – 5 p.m. For more information on the events and the complete lecture schedule, visit www.nashvillelawnandgardenshow.com.

    April 7: Perennial Plant Sale hosted by the Perennial Plant Society of Middle Tennessee annual Perennial Plant Sale at The Fairgrounds Nashville. Find newly released and hard-to-find perennials along with a wide range of tried and tested varieties, all from top local nurseries. The sale opens at 9 a.m. and usually sells out by early afternoon. For more information, visit www.ppsmtn.org.

    April 14: Herb & Plant Sale hosted by The Herb Society of 9 a.m. – 2 p.m., at The Fairgrounds Nashville Sports Arena building. The sale offers common and rare varieties of herbs and heirloom vegetables and handmade pottery and herb markers by artist Roy Overcast for sale. For more information and a list of available plants, visit www.herbsocietynashville.org.

    April 21: Herb & Craft Fair hosted by First Unitarian Universalist Church of Nashville, 1808 Woodmont Blvd., 9 a.m. – 3 p.m. Top quality perennial and annual herbs, heirloom tomato plants, native and companion plants, along with food and craft items reflecting an interest in the homemade and homegrown: fresh homemade sweet and yeast breads, spice mixes, barbecue sauces, jams and jellies; knitted and sewn items, homes for birds and bees, and art, jewelry and more made from pressed flowers. Visit www.thefuun.org.

    May 12: Hosta sale hosted by the Middle Tennessee Hosta. Proceeds from the sale support the club’s activities. More information about the MTHS is at www.mths-hosta.com.

    May 19: Urban Gardening Festival, hosted by Master Gardeners of Davidson County, 9 a.m. – 4 p.m. (rain or shine) at the Master Gardeners’ Demonstration Garden at Ellington Agricultural Center (5201 Marchant Drive in Nashville). The free event includes information about a variety of gardening methods and techniques, local artisans, exhibiters, growers and more. For information, visit www.mgofdc.org/ugf.

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Fall leaves = free mulch

Question: We have several maple trees that blanket the lawn with leaves in the fall. Can we rake these off the lawn into the garden beds to use as mulch?

 

fall-leavesFall leaves are a good source of mulch for garden beds. As they decompose, they improve the soil structure and return nutrients to the soil, and as mulch, they help retain moisture in the garden beds and slow the growth of winter annual weeds that may pop up.

You could just rake them or blow them off the lawn directly into the beds, but it’s better to shred them before you pile them on top of the perennials and around trees and shrubs. Leaves that have been chopped up will decompose faster. A thick layer of unshredded leaves may also become matted and smother plants underneath, and may prevent water from reaching the soil. You can chop the leaves by mowing over them and collecting them in a bagging attachment, or by using a leaf shredder.

Here are guidelines for using leaves as mulch are 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.

*Mix leaves 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.

*Be aware that 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.

Leaves can also be added to compost as one of the carbon-rich “brown” ingredients. If, after you’ve chopped and used as much of your bounty of leaves as possible on the garden beds, save the rest to use later in the compost, or for mulch again next spring. Bag the leaves and keep them dry so they don’t decompose by the time you need them again in a few months.

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