Answer: Pachysandra requires lots of water and their health was probably compromised by the feeder roots of the mature trees. Oak roots will seek out water and I suspect they outcompeted your new little transplants for both nutrients and moisture. Pachysandra grows best in the pH range of 5.5 to 6.5. You may want to have the soil tested just so you know what you're working with. I think the tree roots are the real problem, not the alkalinity of your soil, but you never know! For soil testing contact UNH Cooperative Extension at (603) 862-1520.
Q&A Library Searching Tips