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  • Upcoming Garden Events

    Sept. 30: The Nashville Herb Society presents Through the Garden Gate: A Glimpse of Edwardian England, 8 a.m. – 3 p.m. at Cheekwood Botanic Hall. Celebrate the gardens, foods and flowers that delighted Downton Abby family and friends at the turn of the 20th century. The event begins with a hearty Edwardian breakfast, followed by three speakers: Marta McDowell on Beatrix Potter’s Gardening Life; Geraldine A. Laufer on Tussie Mussie – Victorian art of expressing yourself in the language of flowers; and Terry White, The English Garden event florist . Registration includes breakfast, box lunch in the garden with music, English tea and cookies. To learn more or to register, visit www.herbsocietynashvlle.org.

    Tips & tasks – September

    Cut the dead tops of coneflowers, but leave enough for goldfinches to enjoy the seeds.

    Plant cool-weather vegetables for a fall crop: spinach, mustard and turnip greens, radishes, leaf lettuce.

    Start a new lawn of cool-season grass, such as fescue, or refurbish or repair establish lawns.

    Don’t let the soil of newly planted grass dry out. New grass needs about an inch of water per week.

    It’s still warm, so continue to water and weed garden beds as needed.

    Remove dead foliage, spent flowers and other garden debris; replenish mulch as needed.

    Continue to harvest produce, which may be getting a boost now from slightly cooler weather. Keep watering sage, rosemary and other perennial herbs so they’ll be in good shape to get through winter.

    Prepare to bring houseplants back indoors: remove dead leaves, scrub soil from the sides of the pots, treat for insects. Bring tropical plants in before nighttime temperatures dip to 55 degrees.

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Pruning oakleaf hydrangea

Our oak leaf hydrangea bloomed beautifully this year, and the flowers have turned pink or brown but they’re still on the plant. The shrub is huge and needs to be cut back. Is it too late to prune it now? I want to make sure it blooms again next year.

oakleaf hydrangea Hydrangea quercifoliaLandscape designer and plantsman Troy Marden, in his book Southern Gardener’s Handbook, says that pruning oak leaf hydrangea can be “tricky.” It blooms on old wood, and next year’s buds may already have begun to develop. If you prune it now, mid-August, you likely will be cutting off some of next year’s flowers. Best to prune the plant shortly after the flowers have turned from white to beige, he suggests.

There’s no reason you can’t remove any dead branches or stems now, though. Use sharp pruning shears, and cut dead twigs and stems off close to the branches. In fact, hydrangea experts note that dead stems should be removed every year.

Shortly after the shrub blooms next spring, consider removing about a third of the older living stems at ground level, which should revitalize the plant.

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