Suitable materials for dwarf fruit tree planters
We bought some dwarf fruit trees last year that have done fairly well in their relatively small pots. I recently moved them into the largest pots (terracotta or plastic) I have. I read up that they should really be in containers that are at least 2ft deep, and about 2ft square. After much research I am concerned as to what timber is safe to use to construct these, as in treated timber or treated decking boards as to what might leach out of the wood into the soil and then in to the fruit. Any advise and help is very much appreciated. Thanks in advance.