Siratro

Macroptilium atropurpureum, Fabaceae

Zones

9–11

Layer

Ground Cover

Lifespan

Perennial

Growth

Fast

Guild Roles

Nitrogen FixerGround CoverMulch MakerBeneficial Insect Habitat

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

Moderate (established)High (seedling)

Soil pH

5.5 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Spurred Butterfly PeaCentrosema virginianum

Nitrogen FixationPhysical Support

Florida Velvet BeanStizolobium deeringianum

Nitrogen FixationPhysical Support

Oaxaca LeucaenaLeucaena diversifolia

Nitrogen FixationShade ProvisionBeneficial Insect Habitat

Spiny FanpetalsSida spinosa

Nitrogen FixationPollinator Sharing

Antagonistic Plants

Japanese ArrowrootPueraria montana var. lobata

Aggressive kudzu vine can smother and outcompete other climbing legumes

Uses

Functions

Nitrogen FixationErosion ControlLiving MulchForage Production

Edible Parts

LeavesSeeds

Common Questions

What zones does Siratro grow in?

Siratro grows in USDA hardiness zones 9 through 11.

Is Siratro a nitrogen fixer?

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

What are good companion plants for Siratro?

Good companions for Siratro include Spurred Butterfly Pea, Florida Velvet Bean, Oaxaca Leucaena, Spiny Fanpetals.

Design guilds with Siratro and see companion relationships visually.

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