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Native Wildflower · Easy

How to Grow Wild Indigo

Amorpha canescens

Your complete guide to growing Wild Indigo.

☀SunFull sun to partial shade (4-6+ hours)
💧WaterLow — drought tolerant
🗺Zones2–9
📏Height1-3 feet
Wild Indigo📷 Wikimedia Commons

When to Plant Wild Indigo

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 2 — May – July —
Zone 3 — May – July —
Zone 4 — April – June —
Zone 5 — April – June —
Zone 6 — April – June —
Zone 7 — March – May —
Zone 8 — March – May —
Zone 9 — February – April —

Companion Plants for Wild Indigo

✓ Good companions

Black-Eyed Susan

Compatible native wildflower that blooms at different times, extending pollinator season

Butterfly Weed

Both support native pollinators and have similar drought tolerance once established

Leadplant

Fellow nitrogen-fixing legume that creates beneficial soil conditions

Little Bluestem Grass

Native prairie grass that provides structural support and creates natural ecosystem balance

Nodding Onion

Native allium that naturally repels pests while attracting pollinators

Prairie Dropseed

Native grass that helps prevent soil erosion and doesn't compete for nutrients

Purple Coneflower

Both are native prairie plants with similar soil and water requirements, attract beneficial pollinat…

Wild Bergamot

Native companion that attracts beneficial insects and has complementary root depth

✗ Keep away from

Black Walnut

Produces juglone toxin that inhibits growth of most legumes including Wild Indigo

Crown Vetch

Invasive legume that can outcompete and smother native Wild Indigo

Kentucky Bluegrass

Aggressive non-native grass that competes heavily for water and nutrients

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.