Based on 1,485 research-grade iNaturalist flowering observations in Washington, Herb Robert blooms mainly from April to June, peaking in May. It ranks #8 among wildflowers recorded in the state in our data.
Geranium robertianum
Herb Robert in Washington by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also in bloom in Washington in May
Pacific trillium
Small Camas
Fringe Cups
Pacific Bleeding Heart
Western Starflower
Checker Lily
Thimbleberry
Large-Flowered Triteleia
Places to look in Washington
National ForestGifford Pinchot National Forest
National ForestOlympic National Forest
State ParkPeace Arch Park
National ForestColville National Forest
National ForestMount Baker–Snoqualmie National Forest
Botanical GardenBellevue Botanical Garden
FAQ
When does Herb Robert bloom in Washington?
Mainly April–June, with the most records in May.
How common is Herb Robert in Washington?
It ranks #8 by number of iNaturalist flowering observations among wildflowers in Washington (1,485 records in our sample).