Similarly, do you need soil for hydroponics?
The keys to plant growth are a variety of mineral nutrients, including nitrogen, phosphorus, and potassium. If you can add these necessary mineral nutrients into a plant’s water supply, you no longer need soil for the plant to grow. Just about any plant can be grown with hydroponics.
What is the best growing medium for hydroponics?
The nutrients the plants need are provided by the nutrient solution, and is what the growing media is watered and moistened with. Some of the most widely used growing media’s include Rockwool, Lightweight Expanded Clay Aggregate (called, Hydrocorn or Grow Rock), Coconut Fiber/Coconut chips, and Perlite or Vermiculite.