Where can I buy a soil for palm tree in London, near Balham?
Please, where can I buy a soil for palm tree in London, near Balham? I mean the proper soil which will include sand and everything what the soil needs. Not just and only some hummus / "vitamins".
I would like to buy it in a local shop in person because if I would buy it on online shop it is so expensive for the postage because it is heavy.
I have windmill palm tree.