One of the more benign consequences of perpetual rainfall, if you’re not living in a floodplain or on a disintegrating riverbank, is moss. When the rain stops, take a look at the vivid green material blanketing flagstones and roof-tiles, laying down velvety pads underfoot which make it feel as if you’re wearing cushioned trainers. The plant can’t get too much moisture: moss doesn’t have roots, but takes in water through its leaves.