The Hygeia Greenforce Instant Green Lawn Tonic 2.5L provides an immediate rich, deep greening effect for any lawn. It is most effective when used between March and September, helping to strengthen the grass and stop the growth of moss. This 2.5L bottle can treat an area of up to 750mΒ² and is easily applied using a watering can or a garden sprayer. It is a fast-acting solution for restoring the appearance of tired or moss-invaded lawns.