[Bernd Bussler]

Now I’ve been using for many years, “American oak leaves” they are larger than the native oak. I collect the leaves now in the winter, because they have long been exposed to the weather and contain no pollutants. However, when I the pH value really deep down (pH 3-3.5) would like to have, then I do combination with peat (pellets) and oak leaves, goes pervekt and the pH remains long stabiel 🙂