Hey, Chantell, here we are again--how nice. When we lived in an suburban area quite a few years ago, we tried the doubles and they just didn't do for us, so switched to the singles with much more success. So, I can't comment about differences between them, maybe somebody else can chime in. Take a look at the post up above by Glen Ingram of Australia--he is growing the doubles, seem to do fine for him.
