The leaves on all our A. belladonna are long gone. My experience has been like Mike's. In my garden different plants bloom (if they bloom as many do not) at different times, sometimes months apart. So temperature couldn't be the only factor as my garden isn't that large and they all would experience approximately the same temperature. When I sent data in before for plants in my area I recorded the first ones to bloom, but never bothered to send supplemental data about when later ones bloomed. I wonder if others did the same. Watering dormant Nerines in summer has been a big help in getting them to bloom. I haven't had much luck with Amaryllids in the ground (except for a few Nerine species). In my raised beds where the soil probably doesn't dry out quite so much I've had a little better luck even if I haven't watered them in summer. But we do have cool summer temperatures which probably delays the soil drying out a bit. Mary Sue Mary Sue Ittner California's North Coast Wet mild winters with occasional frost Dry mild summers