Westland Lawn S&, available from Notcutts, used correctly will help control the build up of moss & greens up grass to create a beautiful lawn. Westland Lawn Sand can be used any time between late spring & early autumn, when grass & weeds are actively growing. Choose a time when the soil is moist & the grass is dry. Do not apply during drought or freezing conditions. Do not apply in windy weather to avoid drift onto plants, patios, decking or ponds. Key Features Traditional treatment to control moss growing on lawns Gives a healthier moss free green lawn Coverage: 185 meters square