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 popular leaf shine, Einstein Oil is a 100% finest quality, first extraction, cold-pressed neem oil to keep leaves clean and plants healthy. Mix 1/2 - 2 tsp. per quart of water and apply as a foliar spray.