About WildflowerDates
This site answers one question, for the wildflower places worth driving to: when does it actually bloom? Every flower and region here has a usual window — the weeks when the first flowers open, the weeks that hold the best color, and the week the show is over.
Where the bloom windows come from
Bloom windows are based on thousands of dated, expert-confirmed flowering reports from iNaturalist naturalists, traced week by week through the year. When a few thousand people photograph the same flower in the same place across many springs, the shape of the season shows up plainly: a slow start, a crest, a fade. That shape is the curve on every region page, and the shaded band across it is the stretch when the reports pile highest — the weeks to aim for.
A place only gets a page once there are enough reports to trust the pattern. If a famous flower is missing from a famous region, that's why: we would rather leave it out than guess at it. This year's reports get their own read, too — whether the season is running early, late, or right on schedule.
How we read the superbloom odds
Desert springs follow the winter. Annual seeds sprout on soaking fall rain and only keep going if the storms keep coming, which means the odds are readable months before the first petal opens. Our superbloom outlook comes from winter rain totals at NOAA weather stations near each desert, compared with the rain of past big years — the springs people still talk about. We show the station and the inches on the page so you can weigh it yourself, and we say "not a superbloom year" when that's what the rain gauge says.
Flowers first
We name public reserves, parks, and roads only — never exact pins, never private land. We never publish exact locations, and we never send anyone onto private land. The places named here are parks, reserves, preserves, and public roads — the ones whose rangers and stewards want visitors, on the trails, where the flowers can take it.
Before a long drive
Bloom timing shifts with each year's weather — a warm February or a dry winter can move a peak by weeks in either direction, and one hot spell can end it early. Treat the windows here as the usual rhythm, not a promise. Before you commit to a long drive, check the park or reserve's own bloom status page and road conditions; they are looking out the window, and we are looking at the pattern.
Updated August 14, 2026.