Based on 1,675 research-grade iNaturalist flowering observations in Ohio, black-eyed Susan blooms mainly from June to October, peaking in July. It ranks #6 among wildflowers recorded in the state in our data.
Rudbeckia hirta
black-eyed Susan in Ohio 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 Ohio in July
Wild Bergamot
Allegheny monkeyflower
Swamp Rose Mallow
Swamp Rose
Fringed Loosestrife
Grey-Headed Coneflower
Climbing Prairie Rose
Tall Bellflower
Places to look in Ohio
Botanical GardenCincinnati Zoo and Botanical Garden
Botanical GardenChadwick Arboretum
National ForestWayne National Forest
Botanical GardenCox Arboretum and Gardens MetroPark
State ParkHocking Hills State Park
State ParkMaumee Bay State Park
FAQ
When does black-eyed Susan bloom in Ohio?
Mainly June–October, with the most records in July.
How common is black-eyed Susan in Ohio?
It ranks #6 by number of iNaturalist flowering observations among wildflowers in Ohio (1,675 records in our sample).