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    Save the Date: Perennial Plant Society’s 30th Plant Sale is April 4, 2020, 9 a.m. – 1 p.m. at the new Expo 3 Building at The Fairgrounds Nashville. Here’s where you can find the newest varieties of perennials, shrubs, vines and annuals from local growers, along with long-time, never-fail favorites, ready for spring planting. Learn more at the PPS website.

     

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Plant perennials now, enjoy them later

I’m still seeing perennials for sale at garden centers. Some of them are being sold at reduced prices. Can they really be planted this time of year?

Daylilies are among the perennials that can be planted now.

Daylilies are among the perennials that can be planted now.

Spring is the typical planting time, but for gardeners who are willing to be patient or take a chance on a plant that may look like it’s past its prime, early fall is a good time to plant. Many of the plants on sale still have plenty of life, even though they don’t look their best right now.

But if you make careful choices and plant now, they will begin to establish good root systems and should spring back beautifully in the garden next year.

While perennials you find now may not be at the peak of perfection, you should still look for healthy plants with no sign of disease. Here are guidelines from the website of Clemson University’s Cooperative Extension and other sources:

  • Look for plants with good color and vigorous appearance. Avoid plants that show any sign of disease.
  • Ease the plant out of the pot and look at the roots look healthy, and not mushy or limp. Avoid anything with roots that have a bad odor.
  • Buy labeled plants (unless you want to be surprised!) and label it in the garden so that you can remember where and what you planted next spring.
  • In the garden, prepare the soil and amend it as needed with compost. Dig a hole a few inches wider that the plant’s pot, remove the plant from the pot and gently loosen the roots, then set the plant in the ground with the base of the plant level with the surrounding soil. Fill the hole with soil, water thoroughly, and add mulch.
  • Don’t set them out and forget them. October can be a dry month, so remember to provide water on a regular basis.

Prune clematis for a better show of blooms

Question: Our spring-blooming clematis vine has grown tall and seems very healthy, but it blooms mainly at the top. The bottom six feet has very few blooms and not much foliage this spring. Can you tell me why?

clematis 2Clematis flowers clambering over a sturdy trellis or other support are a lovely sight each spring. When this woody flowering vine gets too top-heavy, with all the flowers at the top and bare stems at the bottom, the problem has to do with pruning – or lack of it. Early-flowering clematis blooms in spring from buds formed last season. Plant experts recommend pruning it each year to help the plant produce the maximum number of flowers. The time to do that is as soon as you can after it finishes blooming to allow time for new growth to produce flower buds for next year.

Horticulturists writing for a fact sheet from Ohio StateUniversity say that sometimes you can cut back into older wood of old, neglected plants to encourage new buds to break. The vines are most likely tangled, so when you prune, make cuts carefully, and train the stems to cover the maximum are on their support.

Note also that there are other varieties of clematis that bloom a bit later, on new growth, and those varieties should be pruned in the winter.

In general, here is what clematis needs to thrive: Loose, fast-draining soil that is high in organic matter, and regular water. Gardeners like to say that clematis prefers to have its head in the sun and its feet in the shade, so provide a thick layer of mulch to keep the roots cool. You can also plant a ground cover such as mondo grass around the base of the clematis vine.