Verbena Hoary Vervain
Verbena stricta
Perennial in USDA zones 3 - 9. Related to the popular garden Verbena stricta verbenas, this Great Plains native is very hardy, and tolerant of a wide range of adverse conditions including drought. Tall spikes of velvety purple flowers add color over a long season in summer until fall. Flowers attract colorful butterflies and beneficial insects for natural pest control in the garden. Easy to grow, plants often self-seed and naturalize to form striking groups. Deer resistant.
Full sun. Blooms summer until fall.
Height: 2' - 4' tall
Days to Emerge: 14 - 28 Days
Seed Depth: 1/4"
Seed Spacing: A group of 6 seeds every 8" - 12"
Thinning: When 2" tall, thin to one every 8" - 12"
When to sow outside: 2 to 4 weeks before average last frost, or in the fall for germination the following spring.
When to start inside: 10 to 12 weeks before average last frost.
Special germination instructions: Requires darkness to germinate; cover with 1/4" soil.
Artist: Carolyn Crawford