
Based on 2,423 research-grade iNaturalist flowering observations in North Carolina, Great Rhododendron blooms mainly from June to July, peaking in July. It ranks #1 among wildflowers recorded in the state in our data.
Rhododendron maximum
Great Rhododendron in North Carolina 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 North Carolina in July

Turk's-cap lily

Rosepink

Ghost Pipe

Swamp Rose Mallow

Common Selfheal

Downy Rattlesnake Plantain
Scarlet Beebalm

Purple Passionflower
Places to look in North Carolina
Coker Arboretum
Daniel Stowe Botanical Garden
Fort Macon State Park
Hanging Rock State Park
Crowders Mountain State Park
North Carolina Botanical Garden
FAQ
When does Great Rhododendron bloom in North Carolina?
Mainly June–July, with the most records in July.
How common is Great Rhododendron in North Carolina?
It ranks #1 by number of iNaturalist flowering observations among wildflowers in North Carolina (2,423 records in our sample).