Menu

My Burncoose

Search

0

Basket

Cosmos - Care Guide

Cosmos atrosanguineus - Care Guide

Chocolate plant

This is a reasonably hardy tuberous perennial originating in Mexico which has become a popular bestseller because of its chocolate scented flowers. It has a fairly short lifespan but is easily propagated from basal root cuttings taken in early spring and brought into growth with bottom heat.

Other varieties of cosmos (which we do not stock) are annuals for the summer border display and fillers for the herbaceous border. C. atrosanguineus are excellent border or container plants and, more importantly, perennials.

This plant is initially erect in its growth habit but soon ‘flops’ and spreads. The plants which we sell in pots at shows require careful tying in to small split cane supports but this is not necessary when they are grown in a border.

The stems are reddish-brown with spoon-shaped, pinnate, dark green leaves. Individual cup-shaped flowers which are velvet centred and chocolate-maroon in colour with darker brown florets appear from midsummer to autumn.

The maximum height of the plant including the flowering stems is around 2ft with a slightly smaller spread. Deadheading is important in extending the flowering period and a good autumn mulch will help protect the plants in a cold winter. Alternatively, the tubers can be lifted and overwintered in slightly damp peat or leaf mould indoors.


Plants


Visit the Caerhays Castle website
Order the 2020 Burncoose Catalogue
Payment methods accepted
watch us on you tube
Visit Burncoose House - Holiday Accommodation
Burncoose Nurseries: Gwennap, Redruth, Cornwall TR16 6BJ
Telephone: +44 (0) 1209 860316 Fax: +44 (0) 1209 860011 Email: info@burncoose.co.uk
© Burncoose Nurseries 1997 - 2020      Website by Forgecom
All plant pictures are copyright © Burncoose Nurseries unless otherwise stated.
No rights are given to download any of our pictures and use them (for personal or professional use) without our consent.