Can anyone comment on the need for lowered temperatures at germination time for Cape bulbs? These have included multiple species of romulea, geissorhiza, morea and lachenalia, for which zero germination has occurred. I've raised seed such as these before for many years but this year, using seed from a well-known South African source, the germination rate has been zero. I will also add that for watsonia and non-bulbous species germination has been excellent to fair. My concerns here relate only to the bulbous species. As an example, for lachenalias I usually start in early September because the early start and the winter temperatures here often gets them in bloom by late spring in their first year. They are always fast and prolific germinators, so the performance to date has been surprising. Could the nighttime temperature be the cause? This year has been unusual with cooler than normal daytime and higher than normal nighttime temperatures in September and, so far, October. I have recently been placing a few of the flats in a refrigerator during the night to encourage germination and am hoping to see some signs of life. So far, none, but it has only been a few days. If there are suggestions I'd like to hear. Thanks. Andrew Wilson San Diego