Aeroponic (no medium, misted roots)

Also known as: Aeroponics, High-pressure aeroponics, Low-pressure aeroponics

Properties

pH effectnot applicable
Water retentionnot applicable
Drainagenot applicable
Oxygen to rootsvery high
Bacterial surface areanot applicable
Reusabilityvery high (essentially permanent)
Cost tierhigh
Weightvery light

How it affects the system

  • Highest possible root oxygenation: roots hang in humid air and are intermittently misted, with the plants spending almost all of their time in air, which supports very fast growth when run correctly
  • Pump failure or clogged nozzles kill plants within minutes to hours, since there is no buffer reservoir or medium moisture
  • Calibration-sensitive: fine hydro-atomized droplets of roughly 5-50 microns are used for true high-pressure aeroponics, and performance falls off outside that range
  • Difficult retrofit: most hobbyist aeroponic setups are purpose-built tower or chamber systems rather than adaptations of other hydroponic methods

System compatibility

Works well in:

  • aeroponic

Avoid in:

  • media bed (ebb and flow)
  • NFT channels
  • deep water culture (rafts)
  • drip
  • wicking bed
  • soil bed

Care notes

Currently not a supported system in the garden planner, since it sits outside the dwc/nft/vertical/drip/media-bed/wicking/soil-bed enum. It is listed here as reference material, and future planner work may add aeroponic as a system option. It is realistic for advanced hobbyists with a high-pressure pump, accumulator tank and timer-controlled solenoids. NASA has funded aeroponics research, partly for controlled-environment and space-agriculture applications.

Back to growing media reference

Further reading