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Centaurea montana

Mountain knapweed

Garden

Wishlist

  • Centaurea montana | Copyright Greenplantswap 2018
  • Centaurea montana | Copyright Greenplantswap 2018
  • Centaurea montana | Copyright Greenplantswap 2018
  • Centaurea montana | Copyright Greenplantswap 2018

Features

  • BloomsMay to August
  • Height0.3m to 0.7m
  • Spread0.3m to 0.6m
  • Growth HabitIrregular bushy
  • Flower ColourWhite-green, bright blue-mauve
  • Leaf ColourDark green shades

Description

Centaurea montana (Mountain knapweed). This is an upright spreading perennial, It will bear long-blooming flowers that are purple-blue or pink. The fringed flowers are blue and will stand out against the dark silver green leaves.

Characteristics

Perennial, Fragrant

Origin

Europe to Poland

Interest and use

Border, naturaliser, cutting bed, rock-garden. Spring/summer interest.

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  • Centaurea montana | Copyright Greenplantswap 2018
  • Centaurea montana | Copyright Greenplantswap 2018
  • Centaurea montana | Copyright Greenplantswap 2018
  • Centaurea montana | Copyright Greenplantswap 2018

Needs

  • LightFull sun
  • HardinessFully hardy (min -15°C)
  • SoilClay, Sandy, Poor quality, Loamy
  • Soil pH7.0
  • WaterSemi-moist

Cultivation

They will prefer full sun but do not bloom well if allowed to dry out. You will need to divide these plants every 2 to 3 years to keep them growing vigorously.

Propagation

Divide every 2 to 3 years to keep vigorous.

Pests, diseases or disorders

Powdery mildew may be problem.

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