Cosmos atrosanguineus
chocolate cosmos
These velvety, dahlia-like, chocolate-maroon flowers have a delicious aroma, reminiscent of the best Belgian chocolates. One of our recommended plants, they're particularly suitable for a sunny, exotic garden or a planting scheme based on 'hot' colours.
How to care for Cosmos atrosanguineus:
Plant Cosmos atrosanguineus in frost-free conditions, in a sunny spot with well-drained soil, spacing the plants 30-40cm (12-15in) apart. Water thoroughly, keeping the soil moist but not waterlogged, and mulch to retain moisture and suppress weeds. Fertilise in spring and mid-summer, and deadhead spent blooms to encourage continuous flowering. In cooler locations, dig up the tubers in autumn, reduce the stems to within 5cm (2in) of the roots, and store them in a cool, dry place for replanting in spring. Alternatively, mulch with a thick layer of compost over the winter to protect the plants.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
0.6m
Eventual spread:
0.45m
Position:
Full sun
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Borderline hardy (will need protection in winter in colder areas)
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This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
Unavailable
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