Cosmos bipinnatus 'Cosimo Collarette' (Cosimo Series)
cosmea 'Cosimo Collarette'
A bushy, half-hardy annual with finely-divided, feathery foliage. This compact, early-floweringcultivar produces stems 50-60cm tall bearing bicoloured pink and white blooms from early summer into autumn; the semi-double flowers vary from pale pink with white stripes to white flowers edged with pink
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
South–facing or West–facing or East–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
Unresolved
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
- 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
Cosmos bipinnatus 'Cosimo Collarette' (Cosimo Series)
cosmea 'Cosimo Collarette'
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.