Every spring when I jet wash my driveway I collect about 80 litres of moss. I have a large garden with many plants that can benefit from any nutrients I throw on them, and I’m thinking whether the process of jet washing has effectively killed the moss and it can be safely used as a compost? Or does it need to remain in the compost bin for a year before I can use it without harming the plants?
Is this collected moss effectively peat? And given the jetwash process involves no chemicals but the typical hard water of London would this compost be acidic or alkaline?