I've got a beautiful 12 y.o. Acer 'BloodGood' that was bought for me as a gift and is incredibly precious to me. Only problem is I've never had a bonsai before and I know Acers aren't the easiest to look after...
Its leaves have started turning brown around the edges and it just doesn't look too healthy. I've pruned it a couple of times, but I'm not too confident about it. I haven't pruned the roots yet. I think maybe I've been underwatering it, but I'm scared of overwatering. I also think that due to my inexpert pruning there might be too much new growth coming through.
I'm in Scotland and it's starting to get cold and autumnal here, so I think its about to enter dormancy. What should I be doing/not doing at this time of year to help nurse it back to health?
Any help is much much appreciated.