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Centaurea montana (Mountain bluet)

Centaurea montana Photo/Illustration: Steve Aitken

(Based on 3 user reviews)

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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11
Botanical Name: Centaurea montana sen-TOR-ee-ah mon-TAN-ah Common Name: Mountain bluet Genus: Centaurea
Mountain bluet is an excellent choice for the border or rock garden. Blue flowers open from attractive buds in late spring to midsummer, then leave behind a mass of vigorous, silvery-green woolly foliage and woolly stems.
Noteworthy characteristics: Blue, spidery flowers. Self-seeds.
Care: Grow in moist soil in sun or partial shade. Easy to divide in fall if it begins to crowd its neighbors. Self-seeds readily. May need staking.
Propagation: Divide in fall.
Problems: White mold, rust, downy and powdery mildew, thread blight, and Southern blight can occur.
Height 1 ft. to 3 ft.
Spread 1 ft. to 3 ft.
Growth Habit Spreads
Light Full Sun to Part Shade
Moisture Medium Moisture
Maintenance Moderate
Characteristics Self Seeds
Bloom Time Early Summer; Late Spring; Spring; Summer
Flower Color Blue Flower
Uses Beds and Borders, Naturalizing
Style Cottage Garden, Rock Garden
Seasonal Interest Spring Interest, Summer Interest
Type Perennials

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