A bloom calendar for Pennsylvania built from 85,535 research-grade iNaturalist observations of plants in flower. April is the busiest bloom month. Pick a month to see what's flowering, or open a species for its state-by-state timing.
By month
Pennsylvania wildflower calendar (top 40)
Fewer More observations (relative to each row's peak month)
Activity by month (all species)
Most-photographed wildflowers in Pennsylvania
Virginia Springbeauty
Lesser Celandine
Bloodroot
Large White Trillium
White Snakeroot
Virginia bluebells
Dame's Rocket
Dutchman's breeches
Red Trillium
Yellow Trout Lily
Common Jewelweed
Azure Bluet
Red Deadnettle
Garlic Mustard
common star-of-Bethlehem
Ground-Ivy
