My acer was purchased as a gift almost 2 years ago, however as the price was on the variety tag, it was obviously removed! I'm therefore not sure of the variety. This was purchased from Wisley RHS and it came with a pot supposedly advised to last 5 years. However roots are now already showing on the surface of the pot. The acer is in magnificent condition. It is however somewhat overbalanced, and is falling over in any gust of wind! What do I do - buy a much larger pot, which will encourage even further rapid growth, or try pruning both roots and foliage next spring? Or do I conceded potting defeat, create a large root space in my garden, fill it with ericaceous soil ( my local soil is London clay, which is why I pot garden) and let it go crazy? In a small garden, wanting a focus point on my lawn, this is fabulous. I don't really want it much bigger as it will overpower its setting. Will it die if I leave it potbound? Can I prune it? I am stumped.