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Native Wildflower · Easy

How to Grow Sweet Coneflower

Rudbeckia subtomentosa

Your complete guide to growing Sweet Coneflower.

☀SunFull sun to partial shade (4-6+ hours)
💧WaterModerate; drought tolerant once established
🗺Zones4–8
📏Height3-5 feet
Sweet Coneflower📷 Wikimedia Commons

When to Plant Sweet Coneflower

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

ZoneStart IndoorsDirect SowHarvest
Zone 4 — April – June —
Zone 5 — April – June —
Zone 6 — April – June —
Zone 7 — March – May —
Zone 8 — March – May —

Companion Plants for Sweet Coneflower

✓ Good companions

Black-Eyed Susan

Similar growing conditions and bloom times, creates attractive prairie-style display

Butterfly Milkweed

Creates pollinator habitat corridor, complementary orange and yellow colors

Little Bluestem Grass

Native prairie grass provides structural contrast and shared habitat preferences

New England Aster

Extends bloom season into fall, shared native habitat and pollinators

Purple Coneflower

Complementary colors and shared pollinators, both attract beneficial insects

Switchgrass

Native grass provides winter interest and wildlife habitat, won't compete for nutrients

Wild Bergamot

Attracts different pollinators and beneficial insects, similar soil requirements

Wild Columbine

Early spring bloomer extends season, attracts hummingbirds and native bees

✗ Keep away from

Black Walnut

Produces juglone which is toxic to many wildflowers including coneflowers

Crown Vetch

Invasive legume forms dense mats that smother native wildflowers

Tall Fescue

Aggressive non-native grass outcompetes native wildflowers for resources

Notes from the garden

A greener inbox, occasionally.

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