Cosmos Red Illusion (Cosmos bipinnatus ‘Red Illusion’) is a striking Cosmos variety known for its large, semi-double to double blooms. It features pale pink petals overlaid with dramatic spidery deep red veins at the base and rim. The green leaves are delicate and fern-like, which is typical of the species.
Growing Cosmos Red Illusion
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.











