Drummond's Milkvetch

Astragalus drummondii, Fabaceae

Zones

4–8

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 – 8.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Big Bend BluebonnetLupinus havardii

Nitrogen FixationWind ProtectionNurse Plant

Texas BlueweedHelianthus ciliaris

Nitrogen FixationPollinator Sharing

Blue WildryeElymus glaucus

Nitrogen FixationWind Protection

Antagonistic Plants

Fox-tail MilkvetchAstragalus alopecuroides

Related milkvetch species may exhibit allelopathic competition for similar ecological niches

Spreading WallflowerErysimum repandum

Brassica allelopathy can inhibit milkvetch establishment and nodule formation

Drummond's RattlebushSesbania drummondii

Large legume shrub competes with smaller legumes for space and nutrients

Sticky StyloStylosanthes viscosa

Sticky stylo competitive growth can suppress milkvetch development

Arabian peaBituminaria bituminosa

Deep-rooted Arabian pea competes with milkvetch for water and soil nutrients

Uses

Functions

Nitrogen FixationDeep Soil MiningPrairie RestorationSelenium Accumulation

Medicinal Uses

Immune SupportAdaptogen

Common Questions

What zones does Drummond's Milkvetch grow in?

Drummond's Milkvetch grows in USDA hardiness zones 4 through 8.

Is Drummond's Milkvetch a nitrogen fixer?

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

What are good companion plants for Drummond's Milkvetch?

Good companions for Drummond's Milkvetch include Big Bend Bluebonnet, Texas Blueweed, Blue Wildrye.

Design guilds with Drummond's Milkvetch and see companion relationships visually.

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