Miracle-Gro Rose and Shrub Concentrated liquid plant food acts fast to give your plants that extra boost. It produces twice as many blooms as unfed plants. A specialist feed, rich in essential nutrients and 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. Regular feeding every 7 or 14 days throughout Spring and Summer will encourage bigger, lusher plants with noticeably more blooms. Dilute in a watering can by pouring one capful (approximately 50 ml) in to 4.5 L of water. Apply 1 L/plant around the plant and over the foliage to give fast-acting results. Use from February to June.