Miracle Gro Rose and Shrub Food is rich in essential nutrients, it contains added iron to give greener leaves. Ideal for feeding roses and shrubs in beds, borders, pots, containers and hanging baskets. The 1 L bottle makes up to 180 L of diluted plant food equivalent to 40 watering cans. Use from February to June. Nutrient content: NPK 6-3-6 with trace elements.