Based on 1,434 research-grade iNaturalist flowering observations in Oklahoma, Green Antelopehorns blooms mainly from May to June, peaking in May. It ranks #1 among wildflowers recorded in the state in our data.
Asclepias viridis
Green Antelopehorns in Oklahoma 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 Oklahoma in May
Tall Blue Wild Indigo
Antelopehorn Milkweed
Butterfly Milkweed
Chinese privet
Roughleaf Dogwood
Purple Groundcherry
Winecup Mallow
Cowpen Daisy
Places to look in Oklahoma
State ParkAlabaster Caverns State Park
State ParkRobbers Cave State Park
State ParkNatural Falls State Park
National ForestOzark–St. Francis National Forest
National Wildlife RefugeWichita Mountains Wildlife Refuge
State ParkBoiling Springs State Park
FAQ
When does Green Antelopehorns bloom in Oklahoma?
Mainly May–June, with the most records in May.
How common is Green Antelopehorns in Oklahoma?
It ranks #1 by number of iNaturalist flowering observations among wildflowers in Oklahoma (1,434 records in our sample).