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Blue Shamrock

Parochetus communis, Fabaceae

Zones
8–11
Layer
Ground Cover
Lifespan
Perennial
Growth
Fast

Guild Roles

Nitrogen FixerGround CoverPollinator Attractor

Growing Conditions

Sun

Partial Shade (preferred)

Water

High (established)High (seedling)

Soil pH

5.5 – 7.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Alpine BlueberryVaccinium gaultherioides
Nitrogen FixationPollinator Sharing
Caucasian ComfreySymphytum caucasicum
Nitrogen FixationNutrient Accumulation
Wild BuckwheatPolygonum convolvulus
Nitrogen FixationPhysical Support

Antagonistic Plants

Balansa CloverTrifolium michelianum

Both are low-growing legumes that may compete for similar ground-level niches

Uses

Functions

Nitrogen FixationLiving MulchErosion ControlPollinator SupportSoil Improvement

Medicinal Uses

Anti-InflammatoryWound Healing

Common Questions

What zones does Blue Shamrock grow in?

Blue Shamrock grows in USDA hardiness zones 8 through 11.

Is Blue Shamrock a nitrogen fixer?

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

What are good companion plants for Blue Shamrock?

Good companions for Blue Shamrock include Alpine Blueberry, Caucasian Comfrey, Wild Buckwheat.

Design guilds with Blue Shamrock and see companion relationships visually.

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