- Abundant cool color for late summer
- A "perennial ageratum" to enjoy year after year
- Attracts loads of butterflies, bees and other pollinators
- Compact growth habit
- Best in light shade or full sun, likes moist ground
An outstanding native wildflower that looks a lot like annual ageratum…but is reliably perennial and wonderfully low-maintenance. Just give it sufficient moisture in light shade or full sun and it will pump out a long-lasting show of starry light purplish-blue for weeks on end, starting in mid- to late summer. No pests, diseases, or nibbling deer. Mass it in an area you don't want to fuss over. Add cut stems to late-season bouquets.
Grow in full to partial sun. Reaches 24-36 inches tall, about 20 inches wide. Zones 5-9.