A common debate in the gardening / farming community is whether or not pine needles increase compost or soil acidity. In permaculture soil restoration we use large quantities of compost to aid in building soils back to a healthy state.
For our compost we use a large quantity of manure from a farm here in Grass Valley that is free and also full of pine needles. So much so that others would not even take it as they believed that it would be more acidic than without. Their loss or ours?
This begged the question – what was the truth behind pine needles and soil acidity? From a Permaculture standpoint this is important as pine needles are a natural occurring resource and we need to know: