Robinia Species, Bristly Locust, Rose Acacia, Rose Locust
Robiniahispida

Family: Fabaceae (fab-AY-see-ee)
Genus: Robinia (roh-BIN-ee-uh)
Species: hispida (HISS-pih-duh)

Synonym:Robinia longiloba

Synonym:Robinia pauciflora

Synonym:Robinia rosea

Category
Shrubs

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun

Foliage
Grown for foliage
Deciduous
Smooth

Foliage Color

Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)

Spacing
20-30 ft. (6-9 m)

Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Where to Grow
Grow outdoors year-round in hardiness zone

Danger
Seed is poisonous if ingested
Parts of plant are poisonous if ingested

Bloom Color
Rose/Mauve
Magenta (pink-purple)

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant

Bloom Size

Bloom Time
Late Spring/Early Summer

Other details
May be a noxious weed or invasive

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

Propagation Methods
From hardwood cuttings
From seed; direct sow outdoors in fall

Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Seed does not store well; sow as soon as possible