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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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When will Siberian irises bloom?

Question: I received several clumps of Siberian irises from a friend last spring. I didn’t plant them right away, but when I finally did plant, I watered them well and added some fertilizer. They looked a bit limp for awhile and finally recovered, but they didn’t bloom. Should I expect blooms this year?

siberian irisIrises are among the season’s loveliest flowers. The big, beautiful bearded irises that are putting on such a show right now seem to be unconcerned about when and how often they’re moved and usually bloom without fussing. But according to the American Iris Society, Siberian irises don’t like to be disturbed once they’re established, so they may sulk for awhile when they’re moved. If the roots dried while they were waiting to be planted, that may have dealt them another blow. AIS cautions that the roots should never be allowed to dry out while they are out of the ground, and they should be watered heavily after they are transplanted.

Last year, the newly planted irises may have spent the spring and summer getting a strong root system established. By this year, you may have a few blooms.

In general, here is what Siberian irises need to do well: slightly acidic soil in a sunny location (though AIS says they can tolerate light shade), and regular moisture. While the rhizomes of bearded irises should be planted almost on top of the soil, Siberian and other beardless varieties should be set slightly deeper in the ground. All beardless irises should be fertilized regularly.

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