Mixed Planting

The conifer and acer, Yes, Probably the ivy too, But i wouldn,t plant the begonia unless, it was in a seperate pot sunk into the container..

Thank you- I never considered using a sunken pot.....

I don't think you need to use ericaceous compo for any of these. I grow Acers for sale and I just use good general purpose compo. Conifers and ivy will grow in just about anything. Begonias I think like neutral soil and bare in mind the corm will need lifting and storing come autumn, so make sure it is not too close to the roots of the trees. Personally I would save the expense and just use 'ordinary' general purpose compo.

Thanks Sid & YDDee !