Questions on American Plum, Chickasaw Plum, & Beach Plum
I have limited space and will definitely be planting beach plum (Prunus maritima). However, I may also want to grow either American plum (P. americana) or Chickasaw plum (P. angustifolia), as well.
1. Are American plum and Chickasaw plum self-fertile; and will the cross-pollinate for successful fruiting if one of each of these are placed within vicinity of each other?
2. Can American and Chickasaw plums be maintained at 5' x 5' continually and not suffer as a result?
3. Will these two plums fruit in partial-shade?
4. MOST IMPORTANTLY: Which tastes better - American plum or Chickasaw plum?