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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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Leafrollers make a meal of cannas

My cannas were growing well and I thought should be about to bloom when I noticed that the leaves hadn’t opened, and they looked like they’d been stitched together! When I unrolled the leaves, I found a little grub and some other black substance. What is that? What can I do about it?

Your cannas have become host to a fairly common creature throughout the southeast called a canna leafroller, and it can do quite a bit of ugly damage to this summer-flowering favorite.

The grub you see when you unroll the leaves is the larval stage of a little brown moth. Continue reading

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Cannas multiply, time to divide

Question: I planted cannas several years ago and they have multiplied. I’d like to move some of them to a different location. When is the best time to transplant them?

CannasIn the University of Tennessee Extension Master Gardener Handbook, cannas are listed among the “tender bulbs and bulblike plants” along with caladiums, dahlias and gladiolus. At one time, it was recommended that these tubers be dug up and stored to protect them from the cold, but most gardeners in Middle Tennessee (Zone 7a) now find that they make it through winter just fine, especially if they spend winter under a blanket of mulch.

If you want to move them, an opportunity for doing so is coming up. According to the handbook, cannas can be dug in the fall after the foliage has been killed by frost. Allow the tubers to dry for a couple of days, then store them in a cool location (50 degrees or so – a garage or basement, perhaps) where they won’t dry out completely. The Old Farmer’s Almanac suggests storing them in peat moss or wrapping them in newspaper, and sprinkling them with a bit of water every now and then during the winter. Next spring, plant the tubers in a sunny spot when the soil has warmed to 65 degrees.

You may also wait until spring to divide the tubers. Mark their location now, and in the spring, use a garden fork to dig carefully and lift the tubers from the ground. Separate them, cut off any rotten or diseased bits, and replant them. Cannas do best in a location where they receive full sun.