Hydroponics is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite, gravel, mineral wool, or coconut husk
A natural, organic fungicide that provides good control of powdery mildew on various crops and ornamentals. Derived from garlic extracts and other essential oils, these active indredients are food grade materials.