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20 Arnot Bristly Locust Seeds, Robinia fertilis, Fast-Growing, Flowering Shrub
Arnot Bristly Locust (Robinia fertilis) is a vigorous, open-branched, woody deciduous shrub that quickly reaches 8 to 12 feet in height within just a few years. It spreads aggressively through root suckers, especially in light, well-drained soils. The dark green, alternate, pinnately compound leaves turn yellow in autumn. Stems are densely covered in coarse, bristly hairs, giving the plant a distinct texture.
Blooming typically begins in the second year. Fragrant, sweet pea-like pink to pale purple flowers appear in 2 to 4 inch racemes during May and June, creating a beautiful seasonal display. These are followed by brown seed pods.
This extremely hardy shrub thrives in nearly all soil types except wet conditions. It tolerates dry, sandy, and even saline soils, making it one of the best options for erosion control on steep or degraded slopes. Its nitrogen-fixing ability improves soil fertility without suppressing surrounding herbaceous growth. While it has minimal value as a wildlife food source, its floral display adds significant ornamental value to restoration or utility landscapes.
Note: Due to its aggressive spreading habit, it is not recommended for residential or formal landscape use.
Specifications:
USDA Zones: 5 to 10
Growth Rate: Fast
Type: Small to medium-sized deciduous shrub
Family: Fabaceae
Native Range: Eastern United States
Height: 6 – 10 feet
Spread: 6 – 10 feet
Bloom Time: May – June
Bloom Color: Pink
Sun: Full sun to part shade
Fall Color: Yellow (not showy)
Drought Tolerance: Moderate
Water Needs: Medium
Maintenance: Low to moderate
Soil Tolerance: Adapts to a wide range; prefers well-drained soils
Tolerances: Cold, heat, drought, salt, wind, and pollution
Recommended Uses:
Erosion control, reclamation, steep banks, disturbed sites, and dry slopes needing fast vegetative cover.
Sowing Robinia fertilis Seeds – Instructions:
Scarify: Pour hot water over seeds and soak for 24 hours
Stratify: Not required
Germination: Sow seeds 1/4" deep; keep soil moist (not wet)
Blooming typically begins in the second year. Fragrant, sweet pea-like pink to pale purple flowers appear in 2 to 4 inch racemes during May and June, creating a beautiful seasonal display. These are followed by brown seed pods.
This extremely hardy shrub thrives in nearly all soil types except wet conditions. It tolerates dry, sandy, and even saline soils, making it one of the best options for erosion control on steep or degraded slopes. Its nitrogen-fixing ability improves soil fertility without suppressing surrounding herbaceous growth. While it has minimal value as a wildlife food source, its floral display adds significant ornamental value to restoration or utility landscapes.
Note: Due to its aggressive spreading habit, it is not recommended for residential or formal landscape use.
Specifications:
USDA Zones: 5 to 10
Growth Rate: Fast
Type: Small to medium-sized deciduous shrub
Family: Fabaceae
Native Range: Eastern United States
Height: 6 – 10 feet
Spread: 6 – 10 feet
Bloom Time: May – June
Bloom Color: Pink
Sun: Full sun to part shade
Fall Color: Yellow (not showy)
Drought Tolerance: Moderate
Water Needs: Medium
Maintenance: Low to moderate
Soil Tolerance: Adapts to a wide range; prefers well-drained soils
Tolerances: Cold, heat, drought, salt, wind, and pollution
Recommended Uses:
Erosion control, reclamation, steep banks, disturbed sites, and dry slopes needing fast vegetative cover.
Sowing Robinia fertilis Seeds – Instructions:
Scarify: Pour hot water over seeds and soak for 24 hours
Stratify: Not required
Germination: Sow seeds 1/4" deep; keep soil moist (not wet)
