Chocolate cosmos (Cosmos atrosanguineus) is a perennial plant that can grow 50cm – 1.5m tall and 10cm – 50cm wide.
This plant has several common names including: chocolate cosmos, black cosmos or black dahlia.
This is a deciduous plant that takes 2-5 years to reach full maturity.
Plant profile
Common name: chocolate cosmos, black cosmos, black dahlia
Scientific name: Cosmos atrosanguineus
Plant type: Perennials
Habit: Spreading / Branched
Height: 50cm – 1.5m
Spread: 10cm – 50cm
Foliage: Deciduous
Sunlight: Full Sun
Soil: Chalk, Loam, Sand
Moisture: Moist but well drained
Garden type: City & Courtyard Gardens, Informal Garden
Planting type: Cut Flowers, Flower borders and bedding
Seasonal colors
| Season | Stem | Foliage | Flower | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
How to plant Chocolate cosmos (Cosmos atrosanguineus) – I, KENPEI, CC BY-SA 3.0, via Wikimedia Commons
Cultivation profiles – Growing Chocolate cosmos (Cosmos atrosanguineus) – Sten, CC BY-SA 3.0, via Wikimedia Commons
