Scientific Name:
Conoclinium coelestinum (syn. Eupatorium coelestinum)
Common Name:
Blue mistflower, Wild ageratum
Scientific Name Pronounciation:
ah-no-CLIN-ee-um koh-uh-LES-tin-um
Plant Type:
Perennial
Plant Hardiness Zones:
5-10
Plant Hardiness Zone(s):
- 5
- 6
- 7
- 8
- 9
Usual Size:
1-2'
Flower:
Terminal, flat-topped inflorescence can contain almost 70 individual blue-violet disk flowers (there are no ray flowers), each up to ½” across
Bloom Time Notes:
Late Summer to first frost
Leaf:
Opposite, ovate-to-triangular, hairy, and toothed along the edges
Fruit:
Seeds are black, tiny and elongated, with white hairs at one end
Wildlife:
Attractive to butterflies
Natural Habitat:
Sunlit wetlands and stream bank
Propagation:
Division, cutting or seed
Bloom Time:
- Summer
- Fall
Sun or Shade:
- Sun
Companion Plants:
Cultural Notes:
Blue mistflower can spread vigorously both by rhizome and seed, forming large, dense clumps. To control re-seeding, plants should be cut back after blooming ends. Pruning will also encourage a compact growth habit