Bitterroot in the Bitterroot Valley

Lewisia rediviva

Bitterroot usually blooms from late May to mid-July in the Bitterroot Valley, with the best color from early June into late June.

late May – mid-July Best: early June into late June Out of season

The show usually starts around late May. Check back closer to the season.

Based on reports from iNaturalist naturalists. 144 flowering reports from Montana shape this curve. The shaded band marks the best weeks; the dashed line is this week.

Where to see them

Montana's state flower blooms nearly stemless on dry gravel benches — pink stars sitting right on the ground. It named a river, a valley, and a mountain range before it settled for a license plate.

Bitterroot National Forest low trails
Blue Mountain Recreation Area, Missoula

We name public reserves, parks, and roads only — never exact pins, never private land.

Updated August 14, 2026. Bloom timing varies with the year's weather — the curve shows the usual rhythm, and in-season updates sharpen it.