Ironwood Wattle

Acacia estrophiolata, Fabaceae

Zones

9–11

Layer

Understory

Lifespan

Perennial

Growth

Moderate

Guild Roles

ProducerNitrogen FixerWindbreakBeneficial Insect Habitat

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)Moderate (seedling)

Soil pH

6.5 – 8.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

PoroporoSolanum aviculare

Nitrogen FixationWind Protection

Berry SaltbushAtriplex semibaccata

Nitrogen FixationShade Provision

Tall Spear GrassAustrostipa pubinodis

Nitrogen FixationWind Protection

Broken LovegrassEragrostis interrupta

Nitrogen FixationWind Protection

Antagonistic Plants

Austral ThemedaThemeda australis

Ironwood Wattle releases tannins that inhibit grass growth beneath canopy

Uses

Functions

Nitrogen FixationErosion ControlWindbreakWildlife Habitat

Edible Parts

Seeds

Medicinal Uses

Bark AstringentWound Healing

Common Questions

What zones does Ironwood Wattle grow in?

Ironwood Wattle grows in USDA hardiness zones 9 through 11.

Is Ironwood Wattle a nitrogen fixer?

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

What are good companion plants for Ironwood Wattle?

Good companions for Ironwood Wattle include Poroporo, Berry Saltbush, Tall Spear Grass, Broken Lovegrass.

Design guilds with Ironwood Wattle and see companion relationships visually.

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