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Mountain boykinia

Boykinia major

Last reviewed: August 2026

Mountain boykinia (Boykinia major)
Photo: (c) Tom Hilton, some rights reserved (CC BY)

Light

part shade

Water

high

Size

12"–30" H × 12"–24" W

Bloom

Jun, Jul

Native to

CA, ID, MT, OR

Pollinators

flies, small bees

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A clumping perennial with large, deeply lobed maple-like leaves and tall wiry stems topped with loose clusters of small white flowers. Grows along streambanks and wet rocky seeps.

Wildlife value

The open flower clusters attract small native bees and pollinating flies.

Common questions

How much sun does Mountain boykinia need?
Mountain boykinia grows best in part shade conditions.
When does Mountain boykinia bloom?
Mountain boykinia blooms in June and July.
Where is Mountain boykinia native?
Mountain boykinia (Boykinia major) is native to CA, ID, MT, OR, per the World Checklist of Vascular Plants (Kew).
What pollinators does Mountain boykinia attract?
Mountain boykinia draws flies and small bees.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

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