Hairy Birdsfoot Trefoil

Lotus subbiflorus, Fabaceae

Zones

8–11

Layer

Ground Cover

Lifespan

Annual

Growth

Moderate

Guild Roles

Nitrogen FixerGround CoverPollinator Attractor

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

Low (established)Moderate (seedling)

Soil pH

6 – 8.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Sea CloverTrifolium squarrosum

Nitrogen FixationPollinator SharingBeneficial Insect Habitat

Four-leaved kidney vetchAnthyllis tetraphylla

Nitrogen FixationPollinator SharingBeneficial Insect Habitat

Antarctic Hair GrassDeschampsia antarctica

Nitrogen Fixation

Barrelier's MustardBrassica barrelieri

Pest Deterrent

Boer LovegrassEragrostis chloromelas

Nitrogen FixationBeneficial Insect Habitat

Antagonistic Plants

Blue WildryeElymus glaucus

Tall wildrye grass creates shade and root competition that limits small trefoil growth

Pale FlaxLinum bienne

Flax plants can produce allelopathic compounds that inhibit small legume establishment

Uses

Functions

Nitrogen FixationQuick Ground CoverPollinator SupportSoil ConditioningErosion Control

Common Questions

What zones does Hairy Birdsfoot Trefoil grow in?

Hairy Birdsfoot Trefoil grows in USDA hardiness zones 8 through 11.

Is Hairy Birdsfoot Trefoil a nitrogen fixer?

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

What are good companion plants for Hairy Birdsfoot Trefoil?

Good companions for Hairy Birdsfoot Trefoil include Sea Clover, Four-leaved kidney vetch, Antarctic Hair Grass, Barrelier's Mustard, Boer Lovegrass.

Design guilds with Hairy Birdsfoot Trefoil and see companion relationships visually.

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