Doff Tomato Feed Concentrate is a high potash feed, essential for maximum growth of tomatoes and full-flavoured fruit. It has added seaweed and magnesium for healthy plant establishment. This tomato feed is ideal for feeding tomatoes that are planted outdoors and in growbags. Flowering pot plants will also benefit from the high potash feed in the development of bigger, healthier blooms. Contains: Fertiliser NPK 4:5:8 with added seaweed and magnesium. Dilute: 1 capful (15ml) per 7 litres of water.Use: March to September.Size: 500ml.Coverage: 500ml makes up to 150 litres.