Flourish Orchid Booster 500gBoosts strong healthy growth, apply all year round. Searles Flourish Orchid Booster is a soluble plant food suitable to apply to orchids by using a watering can, hose applicator or fertiliser injector. For fast results, apply fertiliser solution to foliage just as you would when watering normally. Searles Flourish Orchid Booster contains chelated iron, copper, zinc and manganese. Chelated micronutrients are fast acting and are absorbed rapidly through