How to Make a Hydroponic Cloner


Whether your primary garden is strictly a hydroponic system or a conventional outdoor soil garden, a hydroponic cloner is a great addition to your gardening shed. Hydroponic cloners are ideal for rooting plant cuttings because you can control every aspect of the environment, giving your cuttings the best chance to thrive and develop a strong root structure. A small shoebox-sized cloner is great for rooting 6 cuttings, and can be easily stored out of the way when not in use.

Build the Cloner

Step 1

Use the hole saw to drill 6 1-1/2-inch holes in the lid of the plastic shoebox. Place the lid on the shoebox and put a net pot in one of the holes to make sure it sits securely. The net pot should hang 1 1/2 to 2 inches above the bottom of the shoebox. If the pot does not sit low enough, enlarge the holes slightly.

Step 2

Remove the pot from the lid and set it aside. Remove the lid from the plastic shoebox. Use the power drill to drill a 1/2-inch hole in the lid.

Step 3

Place the pond fogger inside the shoebox and thread the power cord through the 1/2-inch hole in the lid.

Plant Your Cuttings

Step 1

Fill the 1-gallon container with fresh water. Add B1 growth hormone, following the manufacturer's instructions. Soak the rockwool cubes in this solution overnight.

Step 2

When the rockwool cubes are finished soaking, mix a solution of water and B1 growth hormone, following the manufacturer's instructions. Add concentrated nutrient solution, following the manufacturer's instructions. Pour this mixture into the plastic shoebox until you have covered the pond fogger with half an inch of liquid.

Step 3

Put the lid back on the plastic shoebox and put a net pot in each large hole. Fill each net pot halfway with HydroClay.

Step 4

Place the cloning gel near the plant you will take cuttings from. Use a razor blade sterilized in rubbing alcohol to take the cutting. Immediately dip the cutting in cloning gel for several seconds, then place it in a soaked rockwool cube.

Step 5

Plant the rockwool cube in one of the prepared net pots. Use additional HydroClay to cover the rockwool cube and give the cutting stability.

Step 6

Turn on the pond fogger. Repeat these steps to take additional cuttings.

Step 7

Monitor the water level in the shoebox. Replenish as necessary with a solution of B1 growth hormone, concentrated nutrient solution, and water. Monitor the temperature of the room, keeping it at 72 degrees F.

Tips and Warnings

  • Even under ideal conditions, not every plant cutting will thrive. Take 2 to 4 cuttings from each plant you want to clone.

Things You'll Need

  • Opaque plastic shoebox-sized container with lid
  • 1-1/2-inch hole saw
  • 2-inch net pots, 6
  • Power drill with 1/2-inch bit
  • Pond fogger
  • Extension cord (optional)
  • 1 gallon container
  • B1 growth hormone, available at garden stores
  • Small rockwool cubes
  • HydroClay
  • Cloning gel, available at garden centers
  • Sharp razor blade
  • Rubbing alcohol
  • Plant cuttings
  • Concentrated nutrient solution
  • Thermometer


  • Hydroponics as a Hobby
  • Root cuttings in aero-hydroponics

Who Can Help

  • Hydroponic Cuttings
Keywords: hydroponic cloner, aeroponic cloner, hydroponic cuttings

About this Author

Tricia Ballad has written professionally since 2004. She has authored three books, as well as numerous articles on parenting and website content involving green living. Her work has appeared in Natural Family Online and Budget Artists. She holds a Bachelor of Arts in English with a creative writing specialization from Bradley University.

Article provided by eHow Home & Garden | How to Make a Hydroponic Cloner