Prairie Turnip

Psoralea esculenta, Fabaceae

Zones

3–8

Layer

Herbaceous

Lifespan

Perennial

Growth

Moderate

Guild Roles

Nitrogen FixerGround CoverDynamic Accumulator

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)Moderate (seedling)

Soil pH

6.5 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Alpine CurrantRibes alpinum

Nitrogen FixationNutrient Accumulation

Arrowleaf BuckwheatEriogonum compositum

Nitrogen FixationPollinator Sharing

Mammoth Wild RyeLeymus racemosus

Nitrogen FixationWind Protection

Antagonistic Plants

BabchiPsoralea corylifolia

Congeneric species with similar secondary metabolite profiles causing mutual inhibition

Pitch TrefoilPsoralea bituminosa

Psoralea species known to produce allelopathic compounds that can inhibit related species

Uses

Functions

Nitrogen FixationDeep Soil PenetrationPrairie RestorationWildlife HabitatCultural Food

Edible Parts

Roots

Medicinal Uses

Traditional Digestive

Common Questions

What zones does Prairie Turnip grow in?

Prairie Turnip grows in USDA hardiness zones 3 through 8.

Is Prairie Turnip a nitrogen fixer?

Yes, Prairie Turnip is a nitrogen fixer and can help provide nitrogen to neighboring plants in a guild or polyculture.

What are good companion plants for Prairie Turnip?

Good companions for Prairie Turnip include Alpine Currant, Arrowleaf Buckwheat, Mammoth Wild Rye.

Design guilds with Prairie Turnip and see companion relationships visually.

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