Cosmos atrosanguineus 'Hamcoec'PBR
chocolate cosmos [Eclipse]
A tuberous perennial to 50cm producing a compact clump of deeply lobed, mid-green foliage. Upright stems carry individual, very dark red, chocolate-scented, bowl-shaped flowers with golden centres from mid-summer to mid-autumn
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Black Red | Green | ||
| Autumn | Black Red | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H3Botanical details
- Family
- Asteraceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Cosmos can be annuals or perennials with simple or pinnately divided leaves and large, long-stalked daisy-like flowers in summer
- Name status
Trade
How to grow
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
Propagation
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Cut flowers
- Flower borders and beds
Pruning
Deadhead to prolong flowering
Pests
Generally pest-free
Diseases
May be susceptible to foot rot and grey moulds
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