Russell Stafford mentioned "Regarding John Lonsdale's comments, as a purveyor of colchicums it has been my impression that it is heat, not cool, that accelerates colchicum bloom. We always cool them down to slow them down (nothing more dispiriting than several hundred colchicums blooming in their trays rather than in customers' gardens). The Colchicum bivonae 'Apollo' I mentioned as being in bloom is well established in a pot, which means it probably stays warmer than those in the ground. Of course, it would also sense changes in ambient temperature more readily." I think we are talking about two different things here. My comments were meant to imply that a sustained drop in temperature below some undefined threshold is the trigger to initiate blooming. Once that threshold has been crossed then, absolutely (as is the case with all biological processes), higher temperatures will accelerate the blooming cycle and the flowers will go over faster. Cooling them will delay this. J. Dr John T Lonsdale, 407 Edgewood Drive, Exton, Pennsylvania 19341, USA Home: 610 594 9232 Cell: 610 476 0428 Fax: 801 327 1266 Visit "Edgewood" - The Lonsdale Garden at http://www.edgewoodgardens.net/ USDA Zone 6b