Wick

A passive hydroponic method where absorbent wicks move nutrient solution from a reservoir into the growing medium by capillary action.

Troubleshooting

Medium stays too dry.

Use more or wider wicks, reduce plant size, or switch to a pumped system.

Medium stays too wet.

Use fewer wicks, improve aeration, or use a less water-retentive medium.

Maintenance

  • Keep wicks clean and in contact with both reservoir and medium.
  • Replace wicks if they become clogged with salts or algae.
  • Monitor medium moisture because large plants may outgrow the wick's delivery capacity.

Make It Yourself

  1. Place an absorbent wick through or under the growing container so one end contacts the medium and the other reaches the reservoir.
  2. Fill the container with a medium that can hold moisture while still allowing oxygen, such as coco coir or a coco-perlite mix.
  3. Fill the reservoir with nutrient solution and keep it below the growing container.
  4. Use small or low-demand crops because wick systems deliver water slowly.

Cost

  • 10 - 120 NZD

Power Consumption

  • 0 - 0 W

Variants

  • Single pot wick: One container sits above a small nutrient reservoir with one or more wicks.
  • Tray wick system: Multiple small containers draw from a shared reservoir or capillary mat.

Cultivars

  • Herbs: good
  • Basil: good
  • Oregano: good
  • Thyme: good
  • Tomato: poor