Acer Palmatum - what size container
I've just bought a small (20-30cm) acer palmatum atropurpureum which I'll be planting in a container.
It's in a 9cm pot at the moment, and I'd like it to end up in a square wooden planter I have, about 1 ft deep by 1.5 ft across. Is that likely to be suitable for it, and can I plant it in there straight away or ought I to pot up in increments?
Thanks for any advice!