About
This tuberous perennial reaches a height of 30 cm and is more compact than the typical species, featuring a pronounced chocolate aroma. The leaves are narrow with a bluish-green hue, while the flowers, which bloom in late summer, are bowl-shaped and exhibit a dark brownish-red coloration.
About the genus
Cosmos comprises both annual and perennial species characterized by either simple or pinnately divided foliage. These plants produce sizable, long-stemmed flowers resembling daisies during the summer months.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- City and courtyard gardens, Cottage and informal garden, Patio and container plants
- Fragrance
- Flower
Care notes
- Cultivation
- Grow in moderately fertile, moist but well-drained soil in full sun. Mulch in autumn; in cold areas lift tubers before first frosts and keep frost-free over winter
- Pruning
- Deadhead to prolong flowering
- Propagation
- See sowing seeds indoors
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to foot rot and grey moulds