Hmm, it was 8ft when we bought it and its been in for 2 years. What do you
feed it on?

I don't feed mine, or water it ;-)

On the other hand, I don't want it to grow very tall. It's just over 2m
tall, and that is the way I want it to stay.

I'm guessing something like miracle-grow would be a good feed for it. You
could mulch it at the base as well with manure etc.

- h