Im going to cut mine back today, I hope its an OK time of the year to do so. I need to cut a good 24-36' back on the three tall ones. I got mine from a co-op ( grower has now passed), they were from Thailand...I love them, and cant find any more :confused:. I have one 'common' yellow one, I love it because it just grows wider, not taller, and blooms blooms blooms.