Quick answer: Black locust (Robinia pseudoacacia) is native to 12 states. What's commonly sold under this name is the true wild species. It's typically seeds, verified 15 Sep 2026.
Where it's native
Listed in the register as native to these states. Click a state for its full native-plant guide.
Growing conditions
From the Lady Bird Johnson Wildflower Center Native Plant Database.
| Sun | Sun |
|---|---|
| Water | Medium water, Dry-Moist |
| Soil | Moist, rich to dry, rocky soils |
| Bloom | Bloom Apr-Jun |
| Height | 30-50 ft, up to 70 ft |
| Wildlife value | Favorite of honeybees and hummingbirds, attracts butterflies/birds, special value to native bees |
Naturalizes easily and considered an invasive weed in many non-native areas; brittle branches, thorns, rampant root sprouts, copious seeding make it a garden thug
Buying it
Sold true to the wild species as of the last check (15 Sep 2026), via Amazon.
Sold as: Seeds via Amazon · listing verified 15 Sep 2026
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