I'm planning an allee for a client who is building a French-country house. I want it to be a smaller one, more intimate to walk, with a seating area at the end. I've never done one of these and have several questions: if i use smaller ornamental trees (20-25 ft. tall), how far apart do i plant the trees? Any suggestions on how many is a good number--are allees usually odd or even numbers on each side, or does it matter? And any suggestions on tree variety? i'm in zone 8, central Texas (Austin).
i've googled this but can't seem to find the info i'm looking for. Thanks!