We have 3 small lemons, 2 small limes, and a significantly larger lime tree in the greenhouse. The little ones are ~2-3 feet tall, the big lime is around 6 feet tall. They all came from local greenhouses, except one of the lemon trees which my wife started from a seed. With our setup, they bear fruit pretty much year round. Watch what type of lime tree you get, as our big one has some wicked sharp 3 inch thorns.