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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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Callas’ beauty can be fleeting

QUESTION: My calla lilies, which are supposed to be white, are blooming, but the blooms are green! Otherwise, the plants look healthy. In fact, I’ve noticed in the past that they form seed pods. Is something wrong with them?

Calla lilyCalla lilies are lovely flowers, and easy to grow in containers or in the ground. The most common varieties produce white, yellow or pink flowers. That flower is technically the spathe, which wraps around the spadix, where the actual flowers grow. When the spathe turns green, it’s going through its natural life cycle on the way to making seeds.

Susan Bryant at Lakeside Callas in Dandridge, Tenn., explained that the spathe turns darker as it matures, and the outside of the spathe begins to turn green and to close up, with seeds forming inside.

“It starts turning green and closing up after a few days,” she said. Heat and lack of moisture might cause it to close up sooner. If you don’t watch them every day, it’s possible to miss the blooms.

You can cut the flower stalk off after it blooms, which will help the bulb grow larger. The foliage stays green and adds texture and interest to perennial beds. If you allow the seed pods to remain, let the seeds ripen and plant them in a pot indoors to grow over the winter, then put the new bulbs in the garden next summer.  It will take two years for the new plants to bloom, Bryant said. The offpspring may be a different color from the parent.

Callas prefer moist, well-drained soil and grow well in full sun, but they tolerate a bit of shade. In colder climates, the bulbs may need to be dug up and stored over the winter and replanted in spring. Gardeners in Middle Tennessee generally find that bulbs survive the winter in the ground.

 

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2 Responses

  1. If i may ask what can i use for the insects not to eat the leaves:( ?

    • Aphids often chew on the leaves of many types of tender young plants. If you find aphids or other insects, try spraying them off with a blast of water from the hose.

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