I am glad and interested to read the developing discussion of climate types with reference to bulbs native habitats. However my hypothesis that refrigerating bulbs in Summer, (which in nature would receive high summer temperatures, moderated only by an insulating layer of earth or rock), is likely to distort their growth patterns, seems to be being passed over. As I understand it, the internal development of a true bulb is hugely affected by temperatures during it's Summer 'rest'. Perhaps some of the botanists on the list could explain the likely effects of chilling Fritillaria bulbs in Summer? Peter (UK)