Acer palmatum 'Atropurpureum'

I bought this maple from a garden centre in Uxbridge, no grafts here, what a find eh!!!!. I cut it back about 3 weeks ago and will repot very soon, there is a small root on the right hand side which hopefully I can lift a little when I repot, suggestions are welcome.

Looks like good starter material Peter,

If they were mine, I'd spread the roots radially over a tile or something similar and plant them in the ground for a season or three. Keep pinching or cutting back all new growth to the first pair of buds and you will get dramatic thickening and much bushier specimens. That will allow you many more choices when it comes to styling time.

Thanks Kev,

Unfortunately I cannot plant it in the ground as I live in rented accommodation, so i guess the next best thing is to put it in an oversize training pot, I will post more pictures when it starts filling out.

That is three separate trees, isn't it?

Yeah I'm pretty sure it is, whoever planted this surely did not know the excellent job they did.

That's a shame, the background in your pic looks ideal for planting out.

A large shallow box is almost as good, but you need to feed gently and regularly to get growth as fast.

Thats a solid clay bank with a lot of flint in it, not much grows there, having said that the beech trees seem to thrive, just shows how adaptable they are.
I was going to feed with green dream then use a chemical feed such as chempak diluted to half strength once a week, do you think this would be the best way to go?