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I know that it can take considerable cold but I am not sure about freeze. Can be kept in container for 3-4 years with yearly trimming but eventually gets too big for that.
Name: Carol Noel Hawaii (near Hilo) It's all about choices.
Plumania...my first bunch of seeds from you didn't do too well...I think we get too much rain here...and there isn't enough sun. At least...we have tall trees so there isn't the sun it probably wants. But you sent me a second batch...and I have cleared a very sunny area to plant some more fruit trees...and I think I'm going to try a couple of plants there...and keep it pruned to a big bush...you think that's possible?
Carol, no harm in trying.
I also read somewhere to take off the 'hard coat' from seed and then sow.Never tried that though. Many people have hard time growing them for some reason.They do need heat to germinate. Florida sun is quite strong. May be try heat mat with a few seeds?
I just throw them in a pot in spring and bury a bit with my fingers and find them sprouting during rainy weather. This year they were growing even in lawn that gets mowed because I trimmed off the branches that had seeds on them and some(seeds) probably fell into grass. I gave seedlings to friends here, got to check if they survived all that root disturbance.