Southern Milkvetch

Astragalus hamosus, Fabaceae

Zones

8–11

Layer

Ground Cover

Lifespan

Annual

Growth

Moderate

Guild Roles

Nitrogen FixerGround Cover

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)Moderate (seedling)

Soil pH

6.5 – 8.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Texas PersimmonDiospyros texana

Nitrogen FixationNurse Plant

Hercules clubZanthoxylum clava-herculis

Nitrogen FixationPest Deterrent

MassarandubaPouteria glomerata

Nitrogen FixationNurse Plant

Japanese ApricotPrunus mume

Nitrogen FixationPollinator Sharing

Birchleaf PearPyrus betulifolia

Nitrogen FixationBeneficial Insect Habitat

Red BuckwheatEriogonum grande var. rubescens

Nitrogen FixationPollinator Sharing

Gambel OakQuercus gambelii

Nitrogen FixationNurse Plant

Bitternut HickoryCarya cordiformis

Nitrogen Fixation

Antagonistic Plants

Mockernut HickoryCarya tomentosa

Mockernut hickory allelopathic compounds negatively affect legume growth and nitrogen fixation

Uses

Functions

Nitrogen FixationDrought TolerancePoor Soil ImprovementErosion ControlEarly Season Cover

Common Questions

What zones does Southern Milkvetch grow in?

Southern Milkvetch grows in USDA hardiness zones 8 through 11.

Is Southern Milkvetch a nitrogen fixer?

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

What are good companion plants for Southern Milkvetch?

Good companions for Southern Milkvetch include Texas Persimmon, Hercules club, Massaranduba, Japanese Apricot, Birchleaf Pear.

Design guilds with Southern Milkvetch and see companion relationships visually.

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