While the temperatures will allow year-round growing, the light cycle will not support 4 harvests per year if you're growing outdoors only. I got 3 harvests last year (well the third was actually this Feb.) but I had to trick the plants by vegetating indoors under lights and then putting the girls outside to flower. You CAN easily grow 2 crops per year here in the sunshine state. Plant the first seeds in Jan.-Feb and the second run in Mar.-April. You will harvest in Oct. and Dec. or somewhere around there. Remember the days begin getting shorter in mid June (6/21).