Blue, fuzzy flowers that bloom from late summer to first frost, long after other flowers have faded. Perfect for pollinator or butterfly garden. Prefers sun to partial shade and moist soil. An aggressive spreader it is often used as a ground cover. Seeds must be sown in fall or cold stratified for 3 weeks to 3 months.
Conoclinium coelestinum, Blue Mistflower or Hardy Ageratum
Height: 1'-3", Spread 1'-2'. Seeds must be sown in fall or cold stratified for 3 weeks to 3 months. Germination: Cold stratification.