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Helianthus Genus

Sunflower

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General Needs

  • LightFull sun
  • HardinessFrost hardy (min -5°C)
  • SoilWell drained, Fertile
  • Soil pH5.0 to 7.0
  • WaterSemi-moist

Description

Helianthus genus (Sunflower). They will produce tall showy-flowering annuals and perennials which are grown for their large daisy-like, usually golden-yellow blooms, which are on prolonged display from mid summer to mid autumn. They have hairy often sticky leaves and tall, rough stems. May be invasive. Fully hardy. Prefers sun and well drained soil. May need staking. Propagate by seed or division in autumn or spring.

Characteristics

Annuals or Perennials, Shrubs or Herbaceous

Origin

Americas

Interest and use

Grown for their large, daisy-like usually yellow flower heads.

Cultivation

Needs staking.

Propagation

Seed or division in autumn or spring.

Pests, diseases or disorders

May be invasive. Watch out for snails.

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