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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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Grow Siberian iris from seed

I have several Siberian iris pods that have dried and split and produced seeds. Can I plant them to grow new irises? When is the best time to plant?

Siberian iris croppedAfter the irises bloom in the spring, they may form seed pods, and those ripe seeds (which should be dark and shiny) can be saved and planted to grow new irises. But they require specific conditions to germinate successfully, including a period of cold weather, so the best time to plant iris seeds is in late fall and winter.

Iris experts suggest two ways of germinating iris seeds. This information comes from Margie Valenzuela of the Tucson Area Iris Society and Sally G. Miller at the Dave’s Garden online community of gardeners:

Soak the seeds in water for at least 48 hours, or for several days, changing the water every day. This causes the seeds to plump up and allows them to germinate faster. Plant the seeds about a half-inch deep, about a half-inch apart in a planter box filled with seed-starting potting mix, and keep the soil moist (but not wet) at all times. You may want to cover the container with wire mesh to keep squirrels from digging in the pot. You can also plant the seeds directly in the ground this winter, in a prepared bed. When they begin to germinate, iris seedlings look a bit like grass, but the leaves soon acquire their typical flattened growth pattern.

Other experts provide information about growing seedlings indoors, under lights. They still need a period of chilling – about 12 weeks in the refrigerator, after soaking the seeds in a sterilizing solution of one part bleach and ten parts water. After they’ve had their chill, plant the seeds in seedling mix and grow them under fluorescent lights indoors, moving the seedlings to the prepared garden bed as weather permits, and keep them well-watered during the first year.

Irises grown from seed may not bloom the first year. And when they do bloom, you may find they don’t emerge as the exact plant that grew them – they likely will be interesting hybrids, fertilized nature’s way by bees and other pollinators.

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