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Centaurea montana ‘Lilac’

Mountain knapweed

Garden

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Features

  • BloomsMay to July
  • Height0.35m to 0.45m
  • Spread0.4m to 0.6m
  • Growth HabitCarpet
  • Flower ColourLight lilac, blue
  • Leaf ColourOlive green

Description

Centaurea montana ‘Lilac’ (Mountain knapweed). A mat forming perennial with ovate olive green leaves. Flowerheads of light lilac are held aloft from late spring to mid summer.

Characteristics

Perennial, Herbaceous

Origin

Europe

Interest and use

Ornamental

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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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