Thanks, Dave, that's very helpful. I won't be scratching my head so much now.
I got these fukien tea as I just wanted to fill up some empty spaces and was curious about them, and they were on sale. I didn't realize they were quirky. I guess it will take a long time to get some ramification, maybe I'll just change them to a single old big one as there were several at the nursery.
I did notice from images online that not many get it, only a few probably old ones, like the linked image below :
Fukien Tea