Hoary Vervain is a tall native wildflower of dry prairies and roadsides across the Great Plains and Midwest, covered in soft white hairs that give it a 'hoary' appearance. Its long spikes of small purple flowers bloom from June through September. It is a valuable nectar plant for many native bees, especially long-tongued bees that can reach the nectar in the tubular flowers.
Best time to see a Hoary Vervain
The best time to see a Hoary Vervain is June–July, when about 72% of U.S. sightings happen, based on 14,110 research-grade iNaturalist observations.
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