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Centaurea dealbata

Persian cornflower

Garden

Wishlist

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Features

  • BloomsApril to August
  • Height0.5m to 1m
  • Spread0.3m to 0.6m
  • Growth HabitClump
  • Flower ColourLavender, pink
  • Leaf ColourSilver-green

Description

Centaurea dealbata (Persian cornflower). This species will produce upright clumps of deciduous perennials. The leaves are obovate to pinnatisect and a grey-golden colour. The thistle-like flower heads are excellent for cutting. The soil conditions are varied and this hardy plant will grow even in poor soil. They are also drought tolerant. The plants may be divided every 3 to 4 years. The plants will benefit from an annual feeding in the spring and should be cut to ground level in late autumn.

Characteristics

Perennial, Deciduous, Fragrant

Other common names

Knapweed, Cornflower

Origin

Asia Minor, Iran

Interest and use

Cutting bed, borders.

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Needs

  • LightFull sun or Part shade
  • HardinessHardy (min -10°C)
  • SoilClay, Sandy
  • Soil pH7.0
  • WaterSemi-moist or Dry

Cultivation

They are fully hardy and will require sun, and will grow in any well drained soil, even poor soil.

Propagation

Darkness is necessary for seed germination, annual sow direct. Deadhead regularly.

Pests, diseases or disorders

Powdery mildew may be problem.

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