How big is the footprint of the planting area? It wont have leaves year round being deciduous. Im sure theres something out there that could work.

If the JM is in a pot it should be easily moved away from the sun in the hottest part of the day and later returned to your prefered display spot. There my be some seasons of the year where the sun is not so direct on the tree, so at those times the tree might not need to be moved away and back. About trimming trees. Please do some google searches for tree timming methods,and become very informed about the subject. In the meantime, try to find out which jm cultivar you have inherited. Hopefully it is a dwarf JM since it is growing in a pot. Other wise it may be a losing cause trying to trim it back within location size each summer. or after leaf drop for major pruning. Remember every cut you make affects the continued growth of the tree. So start slowly with the upkeep pruning first. Before any other limbs are trimmed, Use clean pathogen free shears. Prune out all dead or twiggy branches on the inside. Prune away any branch that grows into or crosses over another proper form growing branch. Your previous google searches should have yielded some good instructions on how to make the cuts. After those cuts the tree should look cleaner and opened up just a little better if it started out with a pretty dense canopy. As far as doing other trimming, be very stingy, because most dwarf or semi-dwarf JMs grow very slowly and any bad form timming done will not fill back in or grow back out quickly. It is my opinion that if you do not have a dwarf or semi-dwarf jm than move the tree to a proper light and adequate growing location.

Sorry sort of miss read your post. I don't know if others will agree and I don't know your weather. Roses are best moved in cool weather but it might cause less damage to maple if their moved now. If your weather is already hot give them some shade after you move them. Hope for Humanity does black spot thats why I no longer grow it. It's a gorgeous rose but you will most likely need to spray to keep it clean. I vote for moving it now. Hope that helped a little bit

Ken, every retail nursery in my area sells Japanese maples; some with a very wide selection and others with less but very popular varieties. The nursery I am associated with sells a big variety, probably in the range of 150 different cultivars. But all the small, young trees - the 1G size, sell in the price range I outlined. I know this personally as this is the size I focus on myself for my collection :-) I get 'em small and grow them on in containers! Obviously, older and larger trees go for a higher price. And variegated ones or those with unusual coloring tend to be higher priced as they grow much more slowly on average and you are paying for the time and care provided by the grower until the tree is marketed. I recall an Oridono Nishiki in a large (48"?) box for sale at a prior nursery I was associated with that was a large mature tree........maybe 10' tall and with a good sized canopy - that was priced at $1800. So yes, they can be expensive for larger trees but you are paying for the size and age. The smaller, younger trees are still very affordable for those willing to be patient :-) In your link, they offered a 7G Autumn Moon (24-30") for somewhere around $225, which is not an outrageous price. I bought mine as a 1G for less than $50 (probably a lot less......that was 15 years ago or longer!) and today it is 7' tall and equally as wide. The point I was trying to make is that here in the PNW where these trees of all varieties are plentiful, they do not have to be overly expensive if you start small. And there is really no need for any mail order either unless one is looking for a very uncommon variety. Most better nurseries carry an impressive selection.