I've got 2 small ones. One I got nearly a year ago but planted it out probably in too much shade. Also I don't think it's getting enough water (on automatic irrigation). The second one I got about a month ago and put it out in brighter light but still shade. It's in more sandy soil than the first and gets more water. They're both on mounded soil so drainage is good. Now I'll see how they go in comparison.

The brown edges on the leaves could be from too much fertiliser