This is a foliar spray that HOUSE & GARDEN promises will increase your plant’s vitality and will make sure they “get what they need” for success during flowering period. You can use it on “rooted sprouts, cuttings and mother plants” once a week during grow phase. Product claims foliage will respond by turning a vibrant dark green, with a noticeable healthy looking, “waxy layer” forming on the leaves. Guess this is why they call this stuff “Magic Green.” H&G says that by nourishing the plants form the outside in, this greening up will be aided in all phases of growth and will give your plants more vitality and will make them better prepared for a successful flowering period. Recommended to apply 5-10mL per liter of spray and use 1-2 times a week after your lights have been switched off.