I have a miniature apple tree in a large tub, do I need to put feet under the tub?
Always a good idea Caz8 as the drainage holes can get blocked if the tub is on the ground. Trees also have a tendency to send roots down through the drainage holes. If the tub is kept slightly clear of the ground then roots will 'air prune' themselves and not do that.
Thank you BobTheGardner, will go and get some more feet.