there are a lot of maple sources that recommend that we should plant those 3 trees together to maximize the falll effect. However, none has recommended the optimal spacing to get the best fall effect. You don't want them planted too far apart, because that would defeat the purpose of leaf interplay. Too close, they would look like a single tree with three grafted cultivars. Has anyone here seen the aforementioned trees together? I have all three cultivars potted. They will be ready for permanent location next spring. I am thinking about 8 feet apart planted in a circular fashion.