The word “hydroponics” is thought to have been derived from the Latin “water working.” Water is the basis for hydroponics. Stated plainly, hydroponics is the growth of plants without soil. History Though often thought of as modern and experimental, hydroponics is an ancient practice. Though it wasn’t known at the time, the Hanging Gardens of Babylon were hydroponic. Less famous, the Aztecs’ Raft Gardens also were hydroponic. In the year 1699, scientist John Woodward presented …showed first 75 words of 1602 total…

…showed last 75 words of 1602 total…flood and drain systems. Most often Rockwool is only used one time. Perlite and Vermiculite: Perlite is a light white material that is often used in soil. Vermiculite is a flaky shiny substance that is often mixed with Perlite They do not provide enough support for large plants. They are often used when plants are young or seedlings. Some hydroponic systems do not require any medium at all and use some other means of support.