Posted: 29/04/2014 at 20:58
Lily - can't help on Dogwood, but it was me with the potted acer tips, which go like this ......
apparently acer roots like to touch the edge of their pots, so if you pot up more than a size at a time they put so much effort into growing roots to reach the edge of the new pot that they often expire in the process. So the nursery lady gave me instructions about moving from 2 litre, to 3 litre, to 5 litre to 7 litre - and in year 4 you can release them into the ground. Any repotting should be done before July, for the same reason - so they have plenty of time to grow said roots. So far, I am slavishly following her instructions, and have a set of very healthy acers.
Off for my tea now - will pop back later for a catch up on all those lovely photos