Gene,
I think sandstone is also what causes the pH to be low. My garden area is mostly sand with clay and needs huge amounts of amendments/ organic matter to grow anything very good. The driveway has areas of pure rinsed sand where the water runs over it during high creeks. Lots and lots of sand and lots and lots of clay. There is lime quarries around, but most of my rocks are shale, sand, and whatever those flat paving stones are made of. There are also lots of coral fossils lying around, if that means anything.
Archive powered by MHonArc 2.6.24.