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Black Locust

Botanical Name
Robinia pseudoacacia
Min Zone
4
Max Zone
8
Height
30 to 50 feet
Width
20 to 35 feet
Flowers
Spring: white, pendulous, sweetly fragrant
Fruit
Flat pod
Fall Color
Yellow-green
Light
Full sun
Soil
Moist, alkaline
Planting & Care
  • Tolerates intermittent flooding and drought
  • Salt tolerant
  • Transplants easily
  • Prune in late summer to avoid bleeding
Problems
Locust borer, canker, insects, invasive nature
Varieties
  • Bessoniana - thornless, 30 by 20 feet
  • Tortuosa - 10 feet, twisted branches and stems, few flowers
  • Purple Robe - rose-pink flowers, 40 feet

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