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by gardengallivant
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...