The GARDENA Universal Liquid Fertiliser is a fast-action, mineral fertiliser. It is especially well suited for balcony-/patio and garden plants. The concentrated nutrient mix (NPK fertiliser solution 10+4+7) ensures healthy plant growth and luscious flower- and fruit development. The disease- and pest resistance of the plants is increased. A little goes a long way. The fertiliser is fully water soluble and contains important trace nutrients, such as magnesium. Using the Fertiliser Dispenser (Art. No. 8313-20), the fertiliser is added to the system. One bottle contains 1,000 ml.