Tall plant with blue-purple flowers
Purchase Blue Vervain
|Height Range:||24 - 72 inches|
|Seeding Rate:||1 oz. / 1,000 sq ft|
|Seeds Per Pound:||1400000|
|Growing Season:||April - June|
Blue Vervain produces blue to violet flowers on stiff spikes branched from its grooved stem. It prefers moist sites in gravel or heavy loam soils such as stream banks, ditches, roadsides and damp woodland borders. Bumblebees are an important pollinator to this plant. This perennial blooms July through September. One packet contains 2 grams.