I bought my first batch of pawpaw seed from Cliff England (England's Orchard) that was a specifically pollenated cross by Jerry Lehman. I wanted some more genetic variety, so I also got some seed from Sheri. It is pot luck from their trees. I also had a guy send my some seed from wild pawpaw. Mine are now finishing their second growing season on my lower shaded deck. I'll be planting them when dormant at the end of winter. Here is a thread that Todd started on the other forum that has my pawpaw growing experiences on it: http://habitat-talk.com/index.php?threads/any-paw-paw-experts-transferred-from-old-forums.5710/