Posted on

growing cannabis cuttings in soil

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.

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.

How to clone a cannabis plant

Here’s how to take a cutting:

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.

Choose a rooting medium and setup

Check out these additional resources for more info on cannabis clones:

Many diseases can be difficult to detect in cuttings, but there are a few visual cues that can be seen early on. A lack of vigor is a major cue—check for limping leaves, irregular or mutated growth, and discoloration.

Some growers have dedicated mother plants only for taking cuttings, but this setup takes up a lot of space and materials—you’ll need to keep the mother plant alive, but you won’t get any buds off it because it’ll always stay in the vegetative stage. Some growers find it hard to justify devoting time, energy, and space to plants that won’t produce buds. If your grow space is tight, this might not be the best setup.

If some clones look OK at the shop and you decide to take them home, make sure to take a few last precautionary steps before introducing them to the rest of your garden.

A clone is a cutting, such as a branch, that is cut off of a living marijuana plant, which will then grow into a plant itself. A clone has the same genetic makeup as the plant it was taken from, which is called the mother plant.

Stem width

Cloning cannabis is relatively easy and requires just a few key items:

Cannabis mother plants guarantee genetic consistency, so each new generation of clones taken will have the same taste, flavor, effects, and other characteristics. Clones will also generally grow at the same rate as the mother, produce a similar quality product, and grow with the same vigor, allowing you to dial in your process and really get to know how to grow that particular weed plant.

Another method is to use an auto-cloner. There is an initial cost for buying an auto-cloner, but if you plan on cloning a lot, they are worth it. Auto-cloners cut down on the amount of labor needed to care for clones. Using aeroponics, these machines spray the bottoms of your cuttings with nutrient water at set intervals to promote root growth.

What to look for in a mother plant

When selecting a mother plant to clone from, look for plants that are healthy, sturdy, and at least two months into the vegetative cycle. Don’t take a clone off a plant once it starts flowering.

If they look good after a week or so, go ahead and introduce them to the rest of your garden.

Growing cannabis cuttings in soil

6. After 3-4 days continue to open and spray the plants every day, but this time leaving the greenhouse’s vents open.

5. Close the greenhouse properly and don’t forget to open it and spray the marijuana plants with water once a day.

2. Prepare the substrate. If you are using Jiffy pellets, soak them in warm water (pH around 6) for 10 minutes; if you are using rockwool, you should soak them during 24 hours in water (pH=4.5) and add rooting fertiliser until reaching an EC value of 0.60. If you are using soil, just fill the pots or cells with your substrate.

How to make cannabis cuttings

Clones develop nicely in all types of substrate (Picture: Brett Levin)

The temperature must be between 18°C and 22°C and the relative humidity must be above 90% for the cuttings to root, what can be easily achieved if heated mini-greenhouses are used.

3. Apply rooting hormones on the lower part of the cuttings and gently plant it in the substrate you are going to use.

Marijuana or Cannabis Sativa is a perfect species for asexual propagation (i.e. propagation via cuttings). To clone your favourite cannabis plant you need the following basic material:

9. 15 days – or before – after the start of the process, you should see how the first roots begin to appear. Some strains may be more precocious and start rooting after 8 or 10 days, while others can take up to 20 days. Over 25 day-old cuttings that have not rooted and remain green will hardly end up rooting.