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Improve Poor Drainage

Follow these tips to transform a poorly drained area into an easy-care garden.

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Tips and Tricks to Keep Plants Blooming

Deadheading is a popular practice ¿ but do you know all the ways to keep flowers on your plants longer? Follow these easy tips for keeping your favorite shrubs and flowers blooming longer.

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Top Plant Picks for Late-Summer Color

Keep the color coming on strong through the end of the growing season with these easy-care, reliable annuals and perennials.

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Plan for a Gorgeous Fall Landscape

See how two great gardeners -- one on the East Coast and one on the West -- created knock-your-socks-off fall yards -- and learn how you can do the same.

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Best Plants for Rock Gardens

Transforming an unsightly slope or mound in your backyard into a colorful rock garden is easy when you chose the right plants. These amazing, low-maintenance ground huggers don't mind poor soil but do need good drainage to survive. Here's a list of our top plants for rock gardens.

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Black locust

Robinia pseudoacacia

One of the toughest trees around, black locust thrives just about anywhere you plant it. The plant doesn't mind poor soil (in fact, it improves soil by adding nitrogen), drought, air pollution, salt spray, or even light shade. It's attractive, too, with divided blue-green foliage and fragrant clusters of white or pink flowers in late spring or early summer. It's native to areas of Eastern North America.

Black locust does have some downsides, however. It's a thorny tree and can spread by seeds or suckers and a couple of insect pests feed on the leaves so it may look scraggly by the end of the season.


Part Sun, Sun



8 to 20 feet


To 50 feet tall

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how to grow Black locust

more varieties for Black locust

Black locust
Black locust
(Robinia pseudoacacia) is the wild form. It's fast growing, offers fragrant white flowers, and reaches 80 feet tall and 50 feet wide at maturity. Zones 4-9
Golden black locust
Golden black locust
(Robinia pseudoacacia 'Frisia') has white flowers and bright golden-yellow foliage in spring and summer that turns orange in fall. It grows 50 feet tall and 25 feet wide. Zones 4-9

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