Purple Milk Vetch

Astragalus danicus, Fabaceae

Zones

3–8

Layer

Ground Cover

Lifespan

Perennial

Growth

Moderate

Guild Roles

Nitrogen FixerGround CoverPollinator AttractorBeneficial Insect Habitat

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)Moderate (seedling)

Soil pH

6 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Hedge BedstrawGalium mollugo

Nitrogen Fixation

Spanish StonecropSedum hispanicum

Nitrogen Fixation

Blue Moor GrassSesleria caerulea

Nitrogen FixationPollinator Sharing

Hillside BlueberryVaccinium pallidum

Nitrogen Fixation

Hairy MelicMelica ciliata

Nitrogen Fixation

Antagonistic Plants

Glacial Yellow RattleRhinanthus glacialis

Glacial Yellow Rattle is hemiparasitic and may parasitize Purple Milk Vetch, reducing its vigor

Chickpea MilkvetchAstragalus cicer

Congeneric Astragalus species compete for nitrogen fixation sites and root resources

Uses

Functions

Nitrogen FixationCoastal StabilizationPollinator SupportMedicinal Herb

Edible Parts

Young LeavesPods

Medicinal Uses

Immune SupportAdaptogenic PropertiesRespiratory Health

Common Questions

What zones does Purple Milk Vetch grow in?

Purple Milk Vetch grows in USDA hardiness zones 3 through 8.

Is Purple Milk Vetch a nitrogen fixer?

Yes, Purple Milk Vetch is a nitrogen fixer and can help provide nitrogen to neighboring plants in a guild or polyculture.

What are good companion plants for Purple Milk Vetch?

Good companions for Purple Milk Vetch include Hedge Bedstraw, Spanish Stonecrop, Blue Moor Grass, Hillside Blueberry, Hairy Melic.

Design guilds with Purple Milk Vetch and see companion relationships visually.

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