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Cosmos bipinnatus Sweet Sixteen
Common name: Cosmea, Mexican Aster
A profusion of vibrant, double blooms for a show-stopping display in your garden.
-1 to -5°C
Good Cut Flowers
Good for Pollinators
18/04/2025
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Cosmos bipinnatus 'Sweet Sixteen' will be one of the most sensational bloomers in the border!Bursting with charisma, this half-hardy annual will passionately flower its heart out throughout the summer and into early autumn. Sitting atop oodles of attractive feathery foliage its striking pink and white, saucer-like blooms will sway in the summer breeze - flashing their adorable yellow centres at passing birds, bees and butterflies. The daisy-like bicolour blooms of Cosmos bipinnatus 'Sweet Sixteen' look great when cut for a kitchen display. Collect them in the morning, before the blooms open and they could last up to ten days in the vase. Incredibly, the more you deadhead the plant, the more the blooms magically appear. We absolutely love mass planting these for the fullest, brightest display possible. Cosmos grow in most ordinary garden soil, just ensure the area is well-drained and in a sunny or partly shaded position. Plants will reach a height of 1m with a 30cm spread.
Flower and Foliage Months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Foliage Month
Flowering Month
Key Information
| Latin Name | Cosmos bipinnatus Sweet Sixteen YP |
|---|---|
| Common Name | Cosmea, Mexican Aster |
| Hardiness | H3 (-1 to -5°C) |
| Colour | Pink |
| Format | Young Plants |
| Position | Full-Sun |
| Foliage | Deciduous |
| Height in Maturity (m) | 0.90 m |
| Spread in Maturity (m) | 0.50 |
| Soil Conditions | Chalk Clay Loam Sand |
| Soil Acidity | Acid Alkaline Neutral |
| Aspect | East-facing, South-facing, West-facing |
| Drought Tolerant | Yes |
| Good for pots | Yes |
| Good for wildlife | Yes |
| Good for pollinators | Yes |
| Good for cutting | Yes |
What Will I Receive?
Young Plants
Potted Plants
Bare Roots
Bulbs & Corms
