These 2-3 foot tall perennials produce bright blue-violet flower heads in summer and fall which look nearly identical to the annual ageratum. Butterflies love them and they are excellent cut flowers. Spreads readily by rhizomes, so be sure to plant it where it can either be controlled or allowed to spread in a naturalized setting. Winter hardy to zone 6.
How to Plant EUPATORIUM SEEDS Seeds
Sow in 2 inch pots or cell packs,
press into soil and barely
cover. Needs light to germinate. Kept at 70° F.,
germination is usually within
4 weeks. If not, put container
inside a zip-lock bag and
place in the refrigerator for 4
weeks. Remove and return
to 70° F. until
germination occurs. See Starting Seeds for more information.
Comments: Full or part sun, light shade in hottest climates. Rich soil, ample water. Flowers are nectar rich; among the best blooms for attracting butterflies. Hummingbirds also love them. Flowers are excellent cut for fresh or dried arrangements. Plants are rabbit and deer resistant.