Cosmos atrosanguineus Chocamocha ('Thomocha'PBR)
chocolate cosmos [Chocamocha]
A tuberous perennial to 30cm, more compact than the species and with a stronger chocolate scent. Foliage is narrow, rather bluish green, and the bowl-shaped, late-summer flowers are dark brownish-red
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 Blue | |||
|---|---|---|---|---|
| Summer | Red Brown | Green Blue | ||
| Autumn | Green Blue | |||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H3Botanical details
- Family
- Asteraceae
- Native to the UK
- 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
- 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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