transplanting dawn redwood
A friend is having a 14' dawn redwood planted this weekend (northeast PA). I read that they need any 2 of: full sun, wet soil, low pH. All I know is that he's planting it as the only tree in a wide-open yard (the one that was there came down in a recent storm). I've never added soil amendments for my transplants, but never looked into one of these before, especially if he wants to bring the pH down. Any suggestions?