01480 443789
westland garden health logo

Unwins Cosmos Razzmatazz

Cosmos bippinnatus half hardy annual

  • Striking semi-double flowers
  • Long tall stems with feathery foliage
  • Prefers to grow in a sunny position

Sowing Indoors

  • Almost fill a seed tray with moist seed compost
  • Sow seeds thinly over the surface, and lightly cover them with a little more compost
  • Place in the warmth 15-20°C (60-70°F), and keep moist


Growing On

  • Keep seedlings in a light position, but shade from direct sunlight
  • When large enough to handle, transplant 5cm (2in) apart into trays of potting compost, or individually to 8cm (3in) post of compost


Hardening Off/Planting Out

  • Gradually accustom to outdoor conditions 2-3 weeks before planting out
  • Avoid frosts
  • Plant out 45cm (18in) apart



  • Remove dead flower heads to encourage further flowers

Sowing Time

  • February - April


Flowering Time

  • July - October


    Very Bad

Free garden tips and advice

No spam, we promise