Guide to Poisonous Plants – College of Veterinary Medicine and Biomedical Sciences – Colorado State University
How to Grow and Care for Autumn Crocus
How To Grow Autumn Crocus (Colchicums) | BBC Gardeners World Magazine
How to Grow Autumn Crocus (Colchicum) | Gardener's Path
Autumn crocus (Colchicum autumnale): entire flowering and fruiting plants. Coloured etching by A. Duménil, c. 1865, after P. Naudin. | Wellcome Collection
Autumn Crocus | ASPCA
Buy autumn crocus bulbs Crocus speciosus: £4.99 Delivery by Crocus