Screwbean mesquite

Prosopis pubescens

Corkscrew pods ground into sweet flour; thrives where the water table is near.

Type: small tree · native and wild plants
Hardiness: zones 7 to 10
Light: full sun
Size: about 20 ft tall, 15 ft wide
Harvest: July to August
From: SW river valleys
Here: Hardy in the Lake Erie shore climate (zone 6b to 7a), so it can live outdoors in the ground.

Good for: food, fixing nitrogen in the soil, wildlife.

Native to: Desert Southwest, California. Hardy in zones 7 to 10.

The story

Screwbean mesquite pods were ground into a sweet flour by the Cahuilla, Mojave, Quechan and Chemehuevi along the Colorado and Mojave rivers, and the corkscrew pods were roasted in pits to sweeten; the wood built shelters and the tree marked water in the desert.

Planting

Full sun, any soil with water within reach of deep roots, heat; it tolerates alkali and salt. Plant in spring; a 20-foot thorny tree.

Growing

Water young trees deeply, then rarely. Prune to a single trunk if wanted. It fixes nitrogen.

Harvest and use

Pods ripen tan in summer; pick from the tree, dry, and grind whole. Sweeter than honey mesquite.

What to watch for

Thorns, and dieback where the water table drops.

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General guidance, not professional advice. Conditions vary by yard and year; for local specifics ask your county extension office. Never eat a wild plant you cannot identify with certainty. Traditional uses are shared as history, not medical advice. © 2026 Sean Priest · Irie Orchard. Terms & credits · Privacy · Home