Japanese Arrowroot

Pueraria montana var. lobata, Fabaceae

Zones

4–10

Layer

Ground Cover

Lifespan

Perennial

Growth

Fast

Guild Roles

Nitrogen FixerGround CoverMulch Maker

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

Moderate (established)High (seedling)

Soil pH

5.5 – 7.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Large CrabgrassDigitaria sanguinalis

Nitrogen Fixation

Antagonistic Plants

Tropical KudzuCalopogonium galactioides

Both vigorous climbing legumes compete for light and physical support structures

Blue ElderberrySambucus cerulea

Japanese arrowroot aggressively competes for light and produces allelopathic compounds harmful to elderberry

SiratroMacroptilium atropurpureum

Aggressive kudzu vine can smother and outcompete other climbing legumes

Bushy BluestemAndropogon glomeratus

Japanese arrowroot aggressively covers and smothers bushy bluestem in warm humid climates

Uses

Functions

Nitrogen FixationErosion ControlBiomass ProductionDeep Soil PenetrationLiving Mulch

Edible Parts

RootsLeavesFlowers

Medicinal Uses

Digestive AidFever Reduction

Common Questions

What zones does Japanese Arrowroot grow in?

Japanese Arrowroot grows in USDA hardiness zones 4 through 10.

Is Japanese Arrowroot a nitrogen fixer?

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

What are good companion plants for Japanese Arrowroot?

Good companions for Japanese Arrowroot include Large Crabgrass.

Design guilds with Japanese Arrowroot and see companion relationships visually.

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