Thorny restharrow

Ononis spinosa

Ononis

Fabaceae

Native Plants

Zone 4–10

🐾 Pet-Safe

Thorny restharrow is a drought-tolerant legume that fixes nitrogen in the soil and attracts beneficial pollinators. Plant in well-draining, alkaline soil and avoid overwatering as it prefers drier conditions. This spiny perennial requires occasional pruning to manage its thorny growth habit.

Care Requirements

Care Level

Moderate

Sun

Partial Shade

Water

Moderate

Growth Rate

Moderate

Mature Height

24″ – 60″

Soil

loam

Life Cycle

Perennial

Spacing

18″

Watering Schedule

Every 10-14 Days • Water Deeply But Infrequently, Allowing Soil To Dry Between Waterings

Soil pH

5.5 – 8

Temperature

-30° – 95°F

Mature Spread

up to 36″

Root Depth

Medium

Foliage

Medium

Propagation: Seed

Ecology & Origin

Native to

Albania

Algeria

Austria

Baleares

Baltic States

Belarus

Belgium

Bulgaria

Central European Rus

Corse

Cyprus

Czechoslovakia

Denmark

East Aegean Is.

East European Russia

Finland

France

Germany

Great Britain

Greece

Attracts

🐝 Bees

🐝 Butterflies

Safety & Use

⚕ Medicinal

🐾 Pet-safe

Sources

Data: trefle, usda

Image: trefle.io — Taken Jun 28, 2021 by Alain Bigou (cc-by-sa)

Hardiness Zones

Check your zone:

Available From (0)

No nurseries currently have this species in stock.