We have the droopy, weepy variety of Dwarf Japanese Maple called Crimson Queen (Acer palmatum). Right now it is about 4 feet tall but will grow to about 10 feet eventually. This type has burgundy red leaves and drapes, almost like an opened umbrella. It’s ideal for us because we live in deer country and it is deer resistant. We’ve never had an aphid problem but you might try dish soap and water.