I live in Greece and a friend gave me a young lime tree about three years ago. I planted it in a large pot and it's now about three feet tall and absolutely full of flowers and limes. It looks extremely healthy but I'm concerned that before long it will be too big for the pot. Please could you tell me if it would be advisable to transplant it into the ground or to a bigger pot? Sadly, the soil in our garden is on top of lava type, volcanic rock and is not very deep, so I wondered if the lime has deep roots or whether the are wide spreading. Also, what time of year would be best for moving it?