Sulphur Clover

Trifolium ochroleucon, Fabaceae

Zones

5–8

Layer

Ground Cover

Lifespan

Perennial

Growth

Moderate

Guild Roles

Nitrogen FixerGround CoverPollinator Attractor

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

Moderate (established)Moderate (seedling)

Soil pH

6 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Wild RocketEruca pinnatifida

Pest Deterrent

Tree MedicMedicago arborea

Nitrogen FixationShade ProvisionNurse Plant

Blue WildryeElymus glaucus

Nitrogen Fixation

Autumn KnotweedPolygonum cognatum

Nutrient Accumulation

Mountain RyeSecale montanum

Nitrogen FixationWind Protection

Antagonistic Plants

Himalayan KnotweedPolygonum polystachyum

Invasive knotweed forms dense stands and produces allelopathic compounds that suppress native legumes

Uses

Functions

Nitrogen FixationSoil ImprovementPollinator SupportErosion ControlFodder Production

Common Questions

What zones does Sulphur Clover grow in?

Sulphur Clover grows in USDA hardiness zones 5 through 8.

Is Sulphur Clover a nitrogen fixer?

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

What are good companion plants for Sulphur Clover?

Good companions for Sulphur Clover include Wild Rocket, Tree Medic, Blue Wildrye, Autumn Knotweed, Mountain Rye.

Design guilds with Sulphur Clover and see companion relationships visually.

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