How to clone cannabis plants
Cloning cannabis is relatively easy and requires just a few key items:
- Scissors (for cutting branches off the mother plant)
- Razor (for trimming up cuttings)
- Rooting setup (tray/dome/root cubes, or an auto-cloner)
- Rooting hormone
Choose a rooting medium and setup
Common rooting mediums include rockwool, rooting cubes, or another non-soil equivalent like peat or foam. Rockwool is melted rock that has been spun into a fine thread, and it has terrific airflow and moisture retention. You can find any of these cubes at most grow stores or online.
If you’re using cubes, you’ll need to invest in a tray, a tray-cell insert, and a dome. The clones will go in the cubes, the cubes in the tray-cells, and that sits in a tray which will hold water. To keep in humidity make sure to use a dome over your tray, and you may even want to use a heat mat.
Another method is to use an auto-cloner. These cut down on the amount of labor needed to feed and care for clones. Using aeroponics, these machines spray the bottoms of your cuttings with nutrient water at set intervals to promote root growth. They are more expensive than the traditional tray/dome/root cube setup, but they are becoming more and more popular.
Experiment to see which setup works best for you. Whichever method you choose, make sure your new clones get plenty of light—preferably 18 hours—and humidity.