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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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Remove English ivy from trees

The large trees around our home are covered with English ivy. Is there a way to keep it from growing up into the limbs of the trees?

P1040778 (2)English ivy growing up into trees (and another invasive creeping vine, wintercreeper euonymous) are most evident now, when the trees are bare. It’s this time of year when you can see just how quickly and how thickly those vines – which are evergreen — can climb into the tree canopy. Left to grow, English ivy vines can engulf the tree within a few years.

Once the vines have grown up into the limbs, there is no quick and easy way to get them down. The vines will have grown stout trunks that continue to reach up and branch out as they cling to the bark. The National Park Service, which has an interest in keeping English ivy from displacing native flora on public lands, suggests several methods for controlling the vine. It likely will require a combination of manual, mechanical and chemical methods.

Use a hand axe or pruning saw to carefully cut large vines near the ground, which will deprive the upper portions of nutrients. Try not to damage the bark of the tree itself. Cut smaller vines with loppers or pruning shears. It will take a few weeks for the vines to succumb, but then you can pull as much as possible off the tree, or allow the dead vines to eventually fall off.

Cutting followed by application of a systemic herbicide to the cut surfaces of the still-rooted vines may be effective in getting rid of the plant, NPS says; be aware, though, that cutting will re-invigorate growth, so you have to continue to be diligent about removing new growth, which can usually be pulled up from the ground.

Gardeners have a saying about English ivy: “The first year it sleeps, the second year it creeps, the third year it leaps.” It can be slow to get started, but once it gets going, it quickly leaps out of bounds. Keep this in mind if you’re tempted to add English ivy to the landscape.

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