Typhonium diversifolium will be best in a cool, dryish place over winter, when it is dormant. In the wild it would be frozen in dry soil. I am not familiar with the name T. roxburghii and would be grateful to be informed further about it. John Grimshaw Dr John M. Grimshaw Sycamore Cottage Colesbourne Nr Cheltenham Gloucestershire GL53 9NP Tel. 01242 870567