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This is a method that was passed on to me by an old grower friend. I have found this method to work with the most difficult and stubborn cuttings, including the strains that are labeled “difficult to clone”.
terrarium/old fishtank (I picked this one up at a garage sale for $0.25)
waterbed heater w/thermostat (same garage sale, $2.00)
saran wrap (not shown)
2×4’s, plywood, light switch
Hang light to the desiered area, a 20 watt is reccomended for this project. Now that my light is hung and ready, the next step is to lay out the waterbed heating pad. The pad is laid out so that the terrarium will be sitting directly ontop of it.
The thermostat is placed near by for easy access, and it is set at 80deg F for most cuttings. If rooting tropical varieties, I would suggest a setting nearer 90deg F.
The next step is preparation of the terrarium. I took mine down to the laundry sink and scrubbed it clean using detergent. I would not recommend using bleach, for bleach leaves a residue toxic to your plants. Once it is thoroughly cleaned, and dry, fill the bottom two inches with soil. I prefer to use Sunshine Mix #4. Once complete, place the terrarium ontop of the heating pad and beneath the light.
I mix the required amount of No-Damp into the water, before moistening the soil within the terrarium. Dampen the soil, do not leave it dry and do not make it wet. This will keep the peat pellet at the correct moisture.
Now is time to take your freshly cut clones and place them into peat pellets which have been expanded. The trick here is to bury the pellets most of the way into the soil, this will keep the pellets moist, warm, and will allow the roots to grow into the soil.
The pellet on the right is sitting ontop of the soil, the pellet on the left is correctly buried into the soil.
Once you have all the pellets in place, you are ready to place the temperature probe from the waterbed heating pad. I like to place the probe just above the soil, but not touching the soil, terrarium, or any plants and pellets. This will regulate the temperature within the terrarium to keep your new cuttings happy.
Mix up a spray bottle of cold water and the appropriate amount of No-Damp. Give the plants, the soil, and the inside walls of the terrarium a good misting. Mist everything without making the water bead and runoff.
Cover the terrarium with saran wrap to maintain humidity and temperature. Ensure to leave a one inch gap for fresh air.
Now you are all set to get started. Plug everything in, turn on your light and waterbed heating pad. The pad will warm your environment to optimum temperatures, plus you have just made a high humidity environment for your plants to root. Now, just watch it go. There is really nothing more to do, the pellets will moisturize themselves from the soil and the temperature will remain the same. Check it daily, and give the inside of the terrarium a light misting, if needed. As long as there is still moisture on the terrarium glass, misting is not needed.
As long as your cloning methods are solid, in seven to ten days you will have roots running through the soil. The cutting pictured is shown at day ten, and some roots had to be broken to remove it from the soil.