Cosmos

Cosmos - Key Growing Information
DAYS TO GERMINATION:
7-10 days at 68-72°F (20-22°C)
SOWING:
Transplant - Sow into 50-cell plug flats or preferred seedling container 5-7 weeks before planting out, covering seeds lightly. Harden off and transplant out after danger of frost. Direct seed - Sow after last frost, once soil temperature is above 60°F (16°C), covering seeds lightly. Pinching encourages branching.
LIGHT PREFERENCE:
Sun.
PLANT HEIGHT:
Varies. Tall varieties may benefit from some wind protection, such as Hortonova, used as horizontal support.
PLANT SPACING:
9-12". Wider spacing creates stronger, thicker stems.
HARDINESS ZONES:
Annual.
HARVEST:
Petals just opening, but not yet flattened. Deadheading is required to have blooms all summer.
SOIL REQUIREMENTS:
Any soil.
USES:
Excellent cut flowers. Beds, containers, and mass plantings.