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Large Mountain Fleabane

Erigeron coulteri

Last reviewed: June 2026

Large Mountain Fleabane (Erigeron coulteri)
Photo: (c) Harrison Reber, some rights reserved (CC BY), uploaded by Harrison Reber

Light

full sun

Water

low

Size

4"–12" H × 3"–6" W

Bloom

Jun, Jul, Aug

Native to

CA, CO, ID, MT and 5 more states

Pollinators

bees, butterflies, beetles

Browse plants for this ecoregion

Large mountain fleabane is a compact perennial wildflower that forms low mounds of foliage topped with white daisy-like flowers. It blooms throughout summer and requires minimal water once established, making it ideal for xeriscaping.

In an HOA neighborhood

Large Mountain Fleabane is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

Wildlife value

This native plant attracts bees, butterflies, and beetles during its long summer blooming period. Its nectar-rich flowers provide important food sources for pollinators.

Common questions

How much sun does Large Mountain Fleabane need?
Large Mountain Fleabane grows best in full sun conditions.
When does Large Mountain Fleabane bloom?
Large Mountain Fleabane blooms in June, July, and August.
Where is Large Mountain Fleabane native?
Large Mountain Fleabane (Erigeron coulteri) is native to CA, CO, ID, MT and 5 more states, per the USDA PLANTS Database and regional native plant society lists.
What pollinators does Large Mountain Fleabane attract?
Large Mountain Fleabane draws bees, butterflies, and beetles.
Is Large Mountain Fleabane HOA-friendly?
Large Mountain Fleabane is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Large Mountain Fleabane? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Not sure where to start? Take the 2-minute yard quiz