3x Chocolate cosmos purple - Bare rooted - Hardy plant

Cosmos atrosanguineus

3x Chocolate cosmos purple - Bare rooted - Hardy plant

Cosmos atrosanguineus
Addictive flowers
A flower that smells like chocolate? That's the chocolate cosmos (Cosmos astrosanguineus)! The fragrance is addictive. The flowers also make for a pretty picture in your garden or in a planter on your patio or balcony. Dark purple flowers grown on the brown stems. You will receive the chocolate cosmos bare-rooted in environmentally friendly sugar cane sacking. The roots are shipped fresh from the ground. They are already one year old. This boosts their strength and accelerates their growth. Plants grown from bare-root stock also adapt to their new environment more easily. Bare-root stock plants grow when it becomes warmer. These are winter-hardy perennials, so they return every year. The flowers bloom in the summer.
Chocolate cosmos should be planted in the sun. Chocolate cosmos prefer damp but well-drained soil.
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3x Chocolate cosmos purple - Bare rooted - Hardy plant
3x Chocolate cosmos purple - Bare rooted - Hardy plant
3x Chocolate cosmos purple - Bare rooted - Hardy plant
How we measure

From the bottom of the nursery pot to the top of the plant.

Latin name: Cosmos atrosanguineus
Guarantee: 6 months growth and flowering guarantee
Color: Purple
Preferred location: Sun, Half shadow
Green stayer: No
Leafs all year: No
Hardy plants: Yes
Self polinating: No
Edible: No
Naturalizing: No
Scented: Deliciously Scented
Grafted: No
Cutting flowers: Yes
Flowering: June - October
Growing Height: 70 - 80 cm
Planting distance: 30 - 40 cm

Cosmos has thick, tuberous roots and grows well in moist, well-drained soil. Improve heavy, soil by mixing in some fresh soil or compost. Prepare a suitable hole and plant the Cosmos with the top of the tubers just below the soil surface, refill the hole and water immediately. Choose a sheltered, sunny area to ensure a good flowering from your Cosmos.

Cosmos is great for a flower pot

Cosmos looks amazing when grown in a flower pot. The beautiful, fresh green foliage grows relatively low and fills the pot. The flowers stand erect on long slender stems far above its lance-shaped leaves. Combine Cosmos with Gaillardia or Pennisetum 'Fireworks' in a large pot or planter.


Cosmos flowers easily, whether in pots or in the ground in the garden. Use a fertilizer for flowering plants at least once a month during the flowering period and this will provide an extra rich bloom. The soil may be moderately moist, but not too wet. Did you plant your Cosmos in a pot? If so, you may need to water more often as the root ball may dry out quicker.

Cosmos can be preserved during the winter but must be protected

The tuberous roots of Chocolate Cosmos are sensitive to frost. Like Dahlias, Cosmos can be preserved during the winter months. In autumn when the leaves have died off cut the dead stems back to 4-5 cm from the roots. Shake the soil off the tubers, allow them to dry, then place the Cosmos in a box with sharp sand or dry compost, and store in a frost-free area. You can plant Cosmos next spring and they will amaze you with their fragrant flowers once again!


The Dutch name 'chocoladebloem' refers to the chocolate fragrance of this special flower. You can particularly smell chocolate on hot, sunny days! The scent fits perfectly with the chocolate brown and dark red hue of their flower petals. The flowers last a long time and are ideal as cut flowers. This plant is also called Black Cosmea.


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