Hi, Took my digital infrared thermometer (a tenner on ebay) out to interrogate the snowdrops. Sad to report the fully opened flowers have the same temperature as the surroundings. -- David Pilling email: david@pilling.demon.co.uk web: http://www.davidpilling.net/ post: David Pilling, P.O. Box 22, Thornton-Cleveleys, Blackpool. FY5 1LR. UK fax: +44(0)870-0520-941