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  • May garden tips & tasks

    GARDEN EVENTS IN MIDDLE TENNESSEE

    May 20: Master Gardeners of Davidson County Urban Gardening Festival, 9 a.m. - 4 p.m., Ellington Agricultural Center Demonstration Garden. Free admission. www.mgofdc.org; on Facebook at www.facebook.com/mgofdc.

    June 10: Middle Tennessee Daylily Society show and sale, Ellington Agricultural Center’s Ed Jones Auditorium, 440 Hogan Rd. in Nashville. Sale open at 10 a.m.; show opens to the public at 1 p.m. To learn more about the Middle Tennessee Daylily Society, visit www.middletndaylilysociety.org.

    It’s time to plant those tender herbs and vegetable transplants, such as basil, dill, tomatoes, green peppers, hot peppers, eggplant.

    If tomato transplants are already too tall and leggy, you can plant them on their sides and cover the long stems with soil. The stem tips will turn upward, and the buried stems will sprout roots.

    Sow seeds of bush beans and pole beans, cucumbers, sweet corn, melons, okra, field peas, pumpkin, squash and zucchini. Follow the directions on the seed package for planting depth and spacing. Vegetables grow best in full sun.

    Cut the faded blossoms of peonies. Fertilize the plants lightly in late spring or early summer.

    Remember the basics of watering: morning is best, so plants’ leaves have time to dry before evening. Lawns, perennial borders and annuals like to have 1 – 1½ inches of water per week.

    Many indoor plants enjoy a summer vacation outdoors. Give them a cool, shady spot in the yard, and don’t forget to water them.

    Prune thyme frequently so it will stay full and green in the center.

    Weeding is easiest after a rain. If the ground is too dry and you need to weed, soak the bed first with a hose or sprinkler.

    Whether they’re growing in the ground or in pots on the porch, pinch the tips of geraniums from time to time to encourage them to branch out and to produce more flowers. Geraniums in pots benefit from regular feeding with a water-soluble fertilizer.

    Remember that mulch can be a gardener’s best friend. Pine straw or composted leaves are good alternatives to hardwood mulch.

    Harvest herbs as they reach their peak. Dry small leaves on a screen, hang small bunches of long-stemmed herbs in a warm, dry room out of the sunlight.

    Plants growing outdoors in containers dry out quickly when it’s hot. Check them daily, and water as needed.

    Don’t go near hydrangeas with the pruning shears unless all you’re cutting is dead branches. If the bigleaf hydrangeas look like they’re not going to bloom, it could be that the buds were nipped in a late cold snap, or the plant was pruned too late last year.

    As the flowers of Shasta daisies begin to open and then to fade, keep them clipped off. This prolongs the blooming season of daisies (and most other annuals and perennials), and keeps the plants looking better, as well.

    Watch for aphids on shrubs and perennials. A strong blast of water from a hose will remove many of them, or spray with insecticidal soap.

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Too early for tender hostas

Because it has been so warm already, my hostas have been coming up much too early, and I’m afraid they’ll be damaged or killed if we have another freeze. Some are in pots and some are in the ground. What’s the best way to protect them?

hosta shoots

Hosta shoots are difficult to see when they emerge, but they should be protected from a freeze.

You are correct that hostas making an appearance too soon would be damaged by frost or a freeze, so it pays to watch the forecast and take action when the temperature drops. Cornelia Holland, a hosta collector in Franklin, Tenn., grows hundreds of hostas and other shade-loving perennials in a half-acre garden she calls “Tranquility.” She passed along these tips for keeping hostas healthy when they emerge too soon. Continue reading

Frost-killed plants are ready for the compost

Question: I have a new compost bin for composting vegetable peelings, coffee grounds, eggshells, etc. I also have a lot of dead plants in pots that were killed by the frost. Can I use these in the compost bin?

compost

Dead plants, leaves and other garden debris can be tossed into the compost.

Unless they succumbed to some kind of disease, frost-killed potted plants, along with other end-of-the-season garden debris, are a good addition to compost, so toss them in and don’t worry about it. In fact, they add a much-needed source of “brown” to the nitrogen-rich “green” kitchen scraps, a mixture that’s necessary to produce good compost. Here’s a quick lesson to get your started, adapted from “The Dirt on Composting,” a booklet produced by the Metro Nashville, Tenn. Public Works Department: Continue reading

Time to bring houseplants back indoors

We have had some of our houseplants outdoors for summer, but now that it’s time to bring them back in, how do we get rid of the bugs and insects that are on the plants and in the pots? 

philodendron outdoorsIndoor plants that spend the summer outdoors should be brought back inside well before nights begin to get too cool. Start the process early so you won’t be hustling your plants into a warm area on the evening before the first predicted frost, and so you’ll have time to deal with insects that may try to hitchhike into your home.

In the book Month-By-Month Gardening in Tennessee & Kentucky, garden author Judy Lowe provides this advice on getting houseplants ready to return indoors:

“Remove all yellowed or damaged leaves and faded flowers. Clean all foliage, top and bottom. Clean splattered dirt off the pots. If containers can’t be scrubbed clean, consider new pots or hide the pots in a plastic-lined basket or a decorative container.”

Here’s how Lowe suggests you make sure there are no unwelcome visitors coming in with the returning houseplants:

“Mix up a tub or bucket of 5 parts warm water and 1 part insecticidal soap. Remove plants from their pots, place them in the mixture, and let the plants stand for an hour.” Lowe says that even after doing this, it’s a good idea to keep plants that spent summer outdoors isolated for a few weeks from plants that stayed inside. “Sometimes a stray insect manages to get in anyway, or insect eggs hatch,” she writes. “The problem will be easier to deal with when you can keep the infestation confined to one or two plants.”