Mountain bluet

Centaurea montana

Photo/Illustration: 
Steve Aitken
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
Mountain bluet (Centaurea montana)
sen-TOR-ee-ah mon-TAN-ah
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.

Overview

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
Niagara
Uses
Beds and Borders
Style
Cottage Garden,
Rock Garden
Seasonal Interest
Spring Interest
Type
Perennials

Centaurea montana