Searles Liquid Potash Plus is a high analysis fertiliser for promoting bigger and better flowers, improving fruit size, fruit quality and quantity and improving vegetables. Searles Liquid Potash Plus contains added phosphorus for improved response and greater performance. Potash (potassium) is an essential plant nutrient. It helps to produce and form colourful flowers and improved fruits and it plays a vital role in thickening and strengthening plant cell walls.