Thanks, Tracey. Very straight forward and concise, and what everyone likes to see..... real answers that aren't ambiguous.
A few follow up questions:
---- 1. It seems like the time to do this is late summer? Any tips that signal the right window of opportunity?
---- 2. When grafting stem to stem, it is very important to match the cambium layers just under the bark of the two pieces. But the anatomy of roots versus stems is very different, and I wouldn't be surprised if this does not hold true. Apparently this is not important?
---- 3. Obviously, when you are planting in the outside bed, the soil is already moist. Do you water once before you place the sheet plastic over? White, clear or black plastic?