Description
Cosmos sulphureus
‘Rubenza’
Cosmos sulphureus Rubenza Seeds
Type: Annual
Bloom: May to August
Flower: 3″ deep red flower, yellow centers
Height: 24″ tall
Light: Full Sun
Soil: Warm Sandy soil, well drained
Moisture: Little. Average during dry hot periods
Use: Great cut flower, use in mid border, in mass. Attracts birds, bees & butterflies. Deer left this one alone.
Tolerances: Poor soil
Notes: Dead head for continuous blooms. Easy care
See Cosmos sulphureus ‘Limara Lemon’ Yellow Dwarf Cosmos Here
Cosmos sulphureus Seed Propagation
Indoors: Sow 4-6 weeks before last frost. 1/16-1/4″ deep. Use temperate water when watering to maintain soil temp 75-80°F Germination 7-21 days. Thin to 1-2′ at 1-2″ tall. When 3-4″ tall, plant out 18-24” apart or to 5” pots when soil warms from May to June
Outdoors: Direct after last frost when soil warms, May to early June. 3-4 seeds, ¼” deep, about 2″ apart or scatter & rake into soil, then firm
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