Cosmos bipinnatus 'Sweet Sixteen'
cosmea 'Sweet Sixteen'
A compact, strong and sturdy half-hardy annual with feathery green foliage and single, soft pink to white flowers with darker pink edging, a central double frill of narrower petals and yellow centres which appear from July through to October. These make good cut flowers and are very beneficial to pollinating insects
Size
Ultimate height
0.5–1 metresTime to ultimate height
1 yearUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Pink White | Green | ||
| Autumn | Pink White | Green | ||
| Winter |
Position
- Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H3Botanical details
- Family
- Asteraceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Clump forming, Columnar upright
- Genus
Cosmos can be annuals or perennials with simple or pinnately divided leaves and large, long-stalked daisy-like flowers in summer
- Name status
Accepted
How to grow
Cultivation
Grow in moist, but well-drained soil in full sun. Suited to annual or cut-flower borders or as a summer infill
Propagation
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Wildlife gardens
- Cut flowers
- Flower borders and beds
Pruning
Deadhead to prolong the flowering season
Pests
Diseases
May be susceptible to grey moulds
Get involved
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