Hello, I am wondering if someone can help me figure out why many of my maples (in containers) do not seem to be growing. Every year, the plants will put out leafage, some years better than others, but there is hardly any growth, or branching at all. I've attached a picture which demonstrates this. You can see some good stem and branch growth from years prior, but then in the past 3 or 4 years, not much has happened. What I end up with is very short, stubby shoots from each year's "growth". As background, usually every year I will pull the plants out of the pots, check the roots, and move them around a bit in their soil. If it looks like they need a bigger pot, I will transplant. The only thing I don't really do is fertilize very much. Maybe some fish emulsion once in a while, but usually just water. Perhaps in a container, I need to be more proactive in fertilization. If the belief is that is the problem, which fertilizer is good for container maples? EDIT; I see there is an entire thread on container fertilization, so that part of my question can be skipped, thanks. Thanks for any advice!