Name: Conoclinium coelestinum aka Eupatorium coelestinum - Hardy Ageratum
Family: Asteraceae
Bloom Time: late summer - fall
Soil Condition: well drained
Light: full sun to partial shade
Height: 24” - 36”
Native Range: Eastern North America
Conoclinum coelestinum is best used for naturalizing in wildflower and native gardens as it can be quite aggressive. Fills in empty space quickly to combat unwanted weeds. Blooms for at least 8 weeks and makes a great cut flower.
Flowers: lavender/blue
Maintenance: cut it back by ½ no later than July 4th for bushier plants with more flowers. Easy to remove wandering rhizomes.
Benefits: The nectar-rich flowers are attractive to butterflies and other pollinators. Birds enjoy the seeds.
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