Good morning, Carol, such an arbor sounds wonderful, indeed. You might also consider a grape arbor, as two of our Armenian neighbors have constructed. Such arbors provide beauty and delightful shade. Of the trees you mentioned, we have an extremely fecund semidwarf apricot of the Blenheim/Royal variety. A Satsuma tangerine, a Robertson orange, and a Sanguinelli/o blood orange, all of which are semi dwarves. Our "Wonderful" pomegranate is only 3 years old andis growing like a weed and has about 30+ fruit on it right now. You might also consider a Panamint nectarine. Ours is 2 years old, semidwarf, and just LOADED with fruit. Food for thought:) Ron