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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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Spend summer in the shade

We’d like to have a perennial garden, but we’ve moved into a place that has a lot of trees in the yard. We get some sun a couple of times during the day, but there is no place that gets full sun all day. What are some perennials that grow and bloom in part sun or shade?

Hosta shade

Hosta and spiderwort are two shade-loving perennials to add to a shady landscape.

In mid-summer, many gardeners might say you’re lucky to have those shady spots, where you can be outdoors but can stay out of the blazing July sun. Landscape designers know the benefits:

“A shade garden in the summer is a wonderful place to relax,” says landscape designer Mary Higgins, who owns Lavender Blue Garden Design in Middle Tennessee.

“I take care of a lot of gardens in the sun. When I get home, I find I get a lot of pleasure out of my shade garden. The sunny garden takes work. The shade garden is a place I can actually sit and read, relax and slow down, even on a hot day.”

There are plenty of plants that can thrive in areas that don’t get full sun. Continue reading

Hydrangeas’ color depends on the soil

My hydrangeas have pink flowers. Is it true I can make them change to blue? How do you do that? Can I also change my white hydrangeas to pink or blue?

Hydrangea-blueThe French hydrangea (Hydrangea macrophylla) is the one with the big, round, blue or pink clusters of flowers. The color of the flowers depends on the pH level of the soil – how acid or alkaline it is. French hydrangeas growing in alkaline soil have pink flowers; if the flowers are blue, that indicates that the soil is acid.

Continue reading

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.