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PlantSnap
Plant Care
Blue mistflower
(Conoclinium coelestinum)
Also Known As
Blue mistflower, Blue mist flower, Chinese bluebell, Eupatorium coelestinum, Thoroughwort
About This Plant
Conoclinium coelestinum is a herbaceous perennial plant species that is native to North America. It has a bushy growth habit and produces clusters of small, sky-blue flowers in late summer and early fall. The plant has a long blooming period and attracts butterflies and other pollinators.
Plant Care Instructions
Outdoor Size Range
24-36 inches (60-90 cm) tall and 12-24 inches (30-60 cm) wide
Light Requirements
Blue Mistflower prefers full sun to partial shade. It can tolerate some shade but will produce fewer flowers.
Humidity Needs
Blue Mistflower prefers average to high humidity levels. It will benefit from occasional misting during dry periods.
Fertilizing Schedule
The plant does not require a lot of fertilizer. A balanced, slow-release fertilizer can be applied in early spring.
Pruning Guidelines
Blue Mistflower benefits from periodic pruning to control its growth and promote bushiness. Deadheading spent flowers can also encourage more blooms.
Common Pests and Diseases
Blue Mistflower is relatively pest-free, but it can be susceptible to powdery mildew in humid conditions.
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
The plant requires regular watering, especially during the hot summer months. The soil should be kept moist but not waterlogged.
Temperature Range
The plant is hardy in USDA zones 5 to 9 and can tolerate a wide range of temperatures.
Growing Season
Blue Mistflower blooms from late summer to early fall.
Growing Difficulty Level
Blue Mistflower is easy to grow and maintain, making it a great choice for beginner gardeners.
USDA Hardiness Zones
5 to 9
Did You Know?
Blue Mistflower is a popular plant among butterfly enthusiasts, as it is a larval host for several species of butterflies, including the American Painted Lady and the Pearl Crescent.
