indoor or outdoor?
in ground or container?
has it been cold or very rainy?
how often do you fertilize and is it a high N fert?

either way citrus bloom profusely, set a ton of tiny fruit and will self thin about 3-4 times over the season.

They are outdoors in a sheltered, south facing alcove. They are planted in large, double-walled pots, in which I drilled extra drain holes. I feed them periodically with a citrus food. Our rainfall started out heavy and above normal and then stopped, but we have been having frost, altho where the pots are located I doubt the frost is affecting them. They do not, however, get sunlight until about mid-day - could that be part of the problem?

The fruit on the second plant managed to stay on and ripen but it is very small. The first plant dropped all but 3 or 4 fruits and they aren't looking so good!