Cosmos Bright Lights (Cosmos sulphureus ‘Bright Lights’) Seed. Fiery semi-double blooms in shades of scarlet orange, golden orange, gold, and yellow. Flowers are excellent for cutting, and butterflies love them. Plants tolerate heat, drought and poor soil.
Growing Cosmos Bright Lights
Indoor Sowing: Late Winter and Early Spring.
Direct Sowing: Spring.
- If you want a head start, you can plant Cosmos indoors 4 to 6 weeks before the last spring frost in trays or pots with a good seed-starting mix.
- Sow on the surface of the soil and cover with a thin layer of soil.
- Keep moist until germination which takes about 30 days.
- You can also sow your Cosmos Maroon Seeds straight into the garden, or on large containers.
- Pinch out the tips when your seedlings reach a few cm.
- Stake when the plants reach about 60cm.
- They can grow to a meter in height or more.
- Deadheading prolongs your flowering season.















