Q. Can you recommend a hardy plant to grow up a concrete wall? (I have) full sun for about 5 hours each day. Would love something flowering.
A. Thanks for writing, kknharris. Our fabulous Home Depot Community associate GardenGail answered your question in our Garden Club Forum, but because it’s such a good question, and a lot of gardeners want to grow climbers on concrete walls or bricks, we decided to re-visit it here. We’re also going to expand on it and mention a few annual vines that offer beautiful flowers.
As GardenGail mentioned, bougainvillea, potato vine, honeysuckle, trumpet vine, and jasmine are all good choices that will grow quickly on a wall, and give you great coverage, color, and flowers. Boston ivy puts on a spectacular show in autumn when the foliage turns brilliant red.
If you had shade, we’d also suggest climbing hydrangeas (Hydrangea petiolaris). Although these perennial vines grow somewhat slowly, they produce big, beautiful clusters of white flowers that can be spectacular on a brick wall.
Clematis is another sun-loving perennial vine with flowers in rich purple, pink, white, and other colors. It can look a bit scraggly in winter, though, so keep that in mind if you’re going to be looking at it when it’s not actively growing.
To invite wildlife to your garden, try cross vine (Bignonia capreolata). Its orange, red, and gold trumpet-shaped flowers attract hummingbirds in spring and summer. It’s a vigorous grower that takes sun to part sun and grows in almost any kind of soil.
There are also many good annual vines you can grow from seeds, like morning glories, moonflowers, and climbing nasturtiums.
Some climbing plants may need additional support, like a trellis or wire attached to the wall. That will give them something to cling to and keep their roots from getting into any cracks in the concrete. Over time, the roots can make the cracks expand, so keep an eye out for potential problems when training a vine up a wall.
Any of these climbing plants can make your wall more attractive and add privacy to your landscape. Good luck!
What kind of plants do you grow on your wall? Leave a comment and let us know what works for you!
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