Gardeners looking to create the perfect lawn and keep it in tip-top condition, should look no further than Vitax s Green Up range. Vitax has carefully formulated products to help grass growers nurture the perfect lawn, and Green Up Feed & Weed will treat common lawn weeds and encourage grass re-growth. With a high concentration of nitrogen, it promotes rapid growth, especially over bare areas which have been replanted with grass seed. For best results gardeners should not mow the area for three days before application and one day after treatment.