How we grow and maintain our gardens has changed over the last few centuries. Scientists have studied the best ways to make plants grow and how to cultivate them. One of these methods was developed in the 18th century, called hydroponics. Researchers discovered that plants consume vital minerals as inorganic ions in water. This meant that no soil was needed for a plant’s growth. While soil is a large repository for nutrients and minerals, it is not essential for a plant to grow. If the same minerals are introduced into its water supply, the plant has the same chance of thriving. Today, this method is taught as a standard technique, and is used in research.
The most advanced form of growing plants is aeroponics. This process suspends plant roots in the air inside a growth chamber. The roots are then