I also have fruit trees in my garden. I have 2 Meyer Lemons, 1 Satsuma Orange, 1 Valencia Orange, 1 Golden Delicious Apple, and 1 LimeQuat [cross between lime and komquat]
The lemon trees fruit year round. The Satsuma is every other year and the Valencia is every year. Harvest time is around October for all except the lemons. You just pick them as you need them. Last year we have a much colder winter than in years past, so my lemon and lime trees seemed to into a sort of hibernation but kept their fruit throughout the winter... I garage them but I hope to have a greenhouse in my backyard to keep them in... I think that project is some time down the road as greenhouses are expensive and not in the budget for the next couple of years...

