Orchids are used to being deficient in nutrients and it is important not to over-fertilise them. To use, fill the atomiser with water, carefully add six drops of plant food and shake. Mist the base and the stem during the growing season (March to August) once every 5-7 days. Each set contains 100ml of natural plant food, designed to last for around a year. We make our plant food using nutritious seaweed harvested from a nearby beach. Seaweed is a wonderful fertiliser because it is rich in nutrients and carbohydrates, helping your plants to grow strong and healthy.