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- Sep 28, 2007 9:20 pm
- Forum: Roses
- Topic: Help--Container Roses
- Replies: 3
- Views: 3159
Peat moss is usually adjusted to a usable (plant friendly) pH range. It should say on the bag. Raw peat moss is pH 3.5-4.5 suitable only for acid lovers like blueberries while bagged peat is pH adjusted from 4.0-5.0 to 6.0-7.0. Roses will only be happy with peat adjusted to pH 6-7. If your pH is off...