The best way to get rid of moss on an asphalt driveway with no chemicals is to use a wire brush. It’s not an easy job, especially if the moss growth is extensive and well established, but scrubbing the moss away is effective and chemical free. You may need to use both a long-handled wire brush and a short-handled wire brush.
Place the cutting face of the long-handled wire brush on the moss, press against the handle and move it backwards and forwards repeatedly in a scrubbing motion. Keep scrubbing until the moss has become dislodged from the driveway. You may notice the green of the scrubbed moss changing to a darker colour as it gets dislodged and macerated. Work logically across the moss patch until you have dislodged all or most of the moss.
Kneel on a kneeling mat to give attention to the more resistant moss, scrubbing at it with the short-handled wire brush. Work logically across the moss patch until you have scrubbed it all away.
Sweep up the loose moss and place it in your garden recycling bin.
Follow the advice of The Royal Horticultural Society and use a pressure washer to remove moss, if your driveway drainage is adequate.
Wear gloves to protect your knuckles when kneeling and scrubbing with the short handled wire brush. Wear protective eye wear.