Hydroponic gardens can continue producing during hot weather, but a heatwave increases the importance of temperature, oxygen, water consumption, airflow, and light management. Warm water holds less dissolved oxygen than cooler water, while plants may also transpire faster as air…
Vertical hydroponics arranges plants in towers, stacked levels, wall panels, or other upright structures to make better use of limited floor space. Unlike DWC or NFT, vertical hydroponics is not a single irrigation technique. A vertical structure may use drip…
Ebb and Flow, also called Flood and Drain, is a flexible hydroponic method that periodically floods a growing tray with nutrient solution and then drains it back into a reservoir. The cycle gives roots access to water and nutrients during…
Drip hydroponics delivers nutrient solution directly to individual plants through tubing and small emitters. Plants commonly grow in a substrate such as coco coir, perlite, or rockwool. The system can be used in small indoor gardens and scaled to greenhouse…
Aeroponics is an advanced form of soilless growing in which plant roots are suspended in an enclosed chamber and supplied with nutrient solution as a fine spray or mist. Because the roots are surrounded by air between spray cycles, aeroponic…
The Kratky method is a passive hydroponic technique designed to grow plants without a water pump or active nutrient circulation. A plant sits above a reservoir of nutrient solution, and as the plant consumes water, the solution level falls. This…
A wick system is one of the simplest passive hydroponic methods. Absorbent wicks draw nutrient solution from a reservoir into a growing medium through capillary action. Because the solution moves without a powered water pump, a wick system can be…
The Nutrient Film Technique (NFT) is a recirculating hydroponic system designed around a shallow, continuously moving film of nutrient solution. Plants sit in sloped channels, their roots develop inside the channels, and the solution flows past them before returning to…
Deep Water Culture (DWC) is one of the easiest active hydroponic systems to understand. A plant is held above a reservoir while its roots reach into nutrient-rich water, and an air pump supplies oxygen through an air stone. The result…
Hydroponics is a method of growing plants without traditional soil. Instead, roots receive water and essential mineral nutrients through a nutrient solution. Some systems keep the roots directly in water, while others use an inert growing medium—such as coco coir,…