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Bristly Locust

Robinia hispida

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Bristly Locust (Robinia hispida) at Oakland Nurseries Inc

Bristly Locust flowers

Bristly Locust flowers

(Photo courtesy of NetPS Plant Finder)

Bristly Locust (Robinia hispida) at Oakland Nurseries Inc

Bristly Locust in bloom

Bristly Locust in bloom

(Photo courtesy of NetPS Plant Finder)

Height:  10 feet

Spread:  15 feet

Sunlight:  full sun 

Hardiness Zone:  4b

Other Names:  Rose Acacia

Description:

A large shrub variety with fragrant and very showy chains of rose-pale purple flowers in spring; branches, stems and fruit are stiffly hairy; performs well in poor soils; tends to sucker and form colonies, good for large-scale naturalizing

Ornamental Features

Bristly Locust has chains of lightly-scented lilac purple pea-like flowers with rose overtones hanging below the branches in mid spring. It has green foliage throughout the season. The oval pinnately compound leaves turn yellow in fall. The fruits are showy purple pods displayed in mid summer.

Landscape Attributes

Bristly Locust is a multi-stemmed deciduous shrub with an upright spreading habit of growth. Its relatively fine texture sets it apart from other landscape plants with less refined foliage.

This shrub will require occasional maintenance and upkeep, and is best pruned in late winter once the threat of extreme cold has passed. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Suckering
  • Insects
  • Spiny

Bristly Locust is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • General Garden Use

Planting & Growing

Bristly Locust will grow to be about 10 feet tall at maturity, with a spread of 15 feet. It has a low canopy with a typical clearance of 1 foot from the ground, and is suitable for planting under power lines. It grows at a fast rate, and under ideal conditions can be expected to live for 60 years or more.

This shrub should only be grown in full sunlight. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for xeriscaping or the moisture-conserving landscape. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is native to parts of North America.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Accent  Massing  Garden 
Applications
Flowers  Fruit 
Ornamental Features
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