Rubenza Cosmos
The dark cranberry flowers of Rubenza Cosmos fade in color as they mature into a dusty mauve shade. Another excellent addition to grow in your cutting garden. Early flowering and productivity. Grows 36-48”.
25 seeds
PLANTING
Cosmos sulphureus
Annual
Germination: 7-10 days
Germination Temperature: Optimum soil temperatures 70-75ºF.
Seed Planting Depth: Sow ⅛” deep
Starting Indoors: Start indoors 4-6 weeks before the last frost. Provide 70-75 ºF soil temperature. Transplant after the last frost,12-18” apart.
Sowing Outdoors: Direct sow outdoors after the last frost, sow a few seeds every 6", thin 12-18" apart.
Growth Habit: Upright, branching
Height and Width: 36-48” by 12-18”
Spacing: 12-18” apart
Light Needs: Full sun
Soil Needs: Poor to average, well-drained, tolerates dry soil
Approximate days to flower from seed: 75-90 days
Uses: Cut flowers, flower beds, containers, wildflower and cottage gardens, attracts butterflies and beneficials
Care: Deadheading prolongs flowering, staking tall plants helps keep them upright when the plant is full of blooms. Over-fertilizing or rich, fertile soil causes more foliage growth with fewer flowers. Self-seeds.