Vervain Hoary Verbena Stricta is an attractive perennial native to North America. If Vervain Hoary seeds are started indoors in winter, they need to be cold stratified. The established Verbena Stricta grows in narrow upright clumps 1 to 3 feet tall with showy light blue to blue-purple, lavender flowers densely packed on narrow flower spikes. Hoary Vervain grows thickly featuring gray-green foliage that compliments surrounding greenery, and blooming all summer long Verbena Stricta attracts bees, butterflies, and hummingbirds.
Vervain Hoary is grown in perennial gardens, borders, prairies, native gardens, and meadows. Verbena Stricta seeds need a few weeks exposure to cool moist stratification before germination, so plant seeds in late fall/winter or cool moist stratify before planting. Vervain Hoary is an extremely drought-resistant plant that thrives on dry sandy soils, Verbena Stricta often self-seeds to form striking groups. The blue-purple 1/2 inch long Vervain Hoary flowers are used as cut flowers for bouquets.
Height: 24-36 Inches
Bloom Season: Summer/Fall
Environment: Sun/Partial Shade
Soil Type: Average/Poor/Dry/Medium well-drained, pH 5.8-7.2
USDA Zones: 3-9 (As Perennial) All Regions of North America (As Annual)
Sow Indoors: Winter (10-12 weeks before last frost)
Sow Outdoors: Fall
Seed Depth: 1/16 - 1/8 Inch
Germination Time: 14-25 Days