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How to Clone Plants and Avoid Clone Yellowing

Leo | August 15th, 2012

how to clone plants infographic

Follow these simple steps for successful plant cloning

One of the biggest problems for growers that clone plants is “clone yellowing”. What is happening when a clone turns yellow is called chlorosis – loss of chlorophyll. Chlorosis is a leading cause of clone failure, but thankfully it can be treated with Herb Doctor.

Prevent Clone Yellowing with Herb Doctor

For successful cloning, it is best to use a dilute solution of Herb Doctor Super Wash. Mix 16 oz. of Herb Doctor with 1 gallon of water. This dilute solution will be used as a foliar spray and a root treatment.

Use the diluted solution of Herb Doctor to water your cloning tray just as you would normally. Herb Doctor’s ultra-hydrating formula helps prevent clones from drying out. After each clone is put in the tray, spray it with the dilute solution of Herb Doctor. Spray your clones once per day with the diluted solution until they have rooted.

Herb Doctor Urgent Care for Clone Yellowing

If you have clones that are yellowing, you can use Herb Doctor to treat it. Use a diluted solution of Herb Doctor and water (16 oz. Herb Doctor to 1 gallon of water) to water your clones with, and a foliar spray.

Empty out any water in the cloning tray, and replace it with the diluted solution of Herb Doctor. Then spray yellowed clones with Herb Doctor and monitor their condition. They will “green up” right away; watch them to make sure they stay green. If the clones don’t stay green, re-treat them about once per hour until they do.

How to clone plants

If you are new to plant cloning, here is how to clone plants:

  • Choose a branch or stem that has at least 2 or 3 sets of leaves.
  • Locate a spot on the branch between, or next to, a set of leaf nodes where your cut will be made:
    • nodes are where the branches/leaves connect to the stem
    • Leave at least two sets of nodes above the cut.
    • Use a pair of scissors to take the cutting off the mother plant.
  • Remove the lower 1 or 2 sets of branches (stems and leaves), leaving two upper sets of leaves.
  • Cut away the largest leaves on the cutting, leave the youngest/smallest leaves.
  • Put the cutting on a clean cutting board and use a sharp razor to make a 45 degree slice at the bottom of the cuttings stem.
    • Do not use scissors to make the 45° cut because scissors will crush the stem. A crushed or bruised stem will have a reduced chance of rooting.
  • Difficult to root plants may require ¼” of the stem to be scraped, with the blade, above the cut. This wounding helps rooting by disrupting the cells on the surface of the stem. Another practice is to cut a notch ¼” above the 45° cut. Your cutting should now be 2-4” tall with two leaves at the top.
  • To prevent an air bubble (embolism) from lodging in the stem where the cut is, immediately dip the base of the cutting into a cloning gel. Wipe off the excess rooting gel for extremely sensitive plants.
  • Place the cutting into your growing medium. Place the cutting at least ½” deep into the rooting medium.
  • Spray the clones with the diluted solution of Herb Doctor once per day to maintain the vigor of the clone
  • Maintain the clones at a temperature of 70 degrees or slightly higher

It is very important to follow these how to clone plants steps exactly. While your clones root, Herb Doctor will help keep them hydrated. If you follow these simple steps, your chances of successful cloning increase significantly.


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