What Is Cannabis Cloning? Why Growers Do It and How It Works

Cloning cannabis plants means taking a cutting from a healthy plant in the vegetative stage and getting it to grow its own roots, so it becomes a new, independent plant. The result is an exact genetic copy of the mother plant: same cannabinoid profile, same potency, same flavor and aroma. It's a form of vegetative propagation, and it's the most reliable way to keep a great strain going.

Cloning is hugely popular with home growers and commercial producers alike because it guarantees new plants keep the mother's genetics intact. That makes it especially valuable for preserving and multiplying exceptional strains, and for pulling consistent, high-quality harvests round after round.

Cannabis clones: what exactly is cloning?

Cloning is a biotech process that creates a genetically identical copy of an organism. In horticulture, and specifically in growing weed, cloning means snipping a branch (more precisely, the tip of a branch with a new shoot or a pair of fresh leaves at the top) from a plant in the vegetative stage. You then coax the cut stem into growing roots, turning the cutting into a brand-new plant.

This guarantees that every clone taken from a single "mother" grows the same way, as long as they all get the same conditions.

Why do growers learn to take cuttings?

Because these cuttings are "clones" with identical DNA, they lock in the flavor, effect and other prized traits of the mother plant. That gives you far more consistency than growing from seed, even with genetically stable strains.

The process is similar for most plants, though the word "cloning" is mostly used in cannabis circles. Heads up: in some places the terminology and the practice itself can fall under specific laws, so it's smart to call them "cuttings" when you shop for supplies at a garden center, especially if local law restricts growing cannabis.

How to choose a mother plant for cloning

Picking the right mother plant is a crucial step. The main reason to keep a particular genetic line alive, or at least stretch its lifespan way out, is that it's genuinely valuable as a strain.

Growers and breeders usually choose mothers based on a set of desirable traits: yield, height, growth speed, potency, flowering time, flavor and effect.

Other specialized traits can also come into play, like high CBD levels, which are increasingly in demand for medical use, or cold tolerance, a big deal for growers in cooler regions.

When you grow plants from seeds, it's hard to predict how a potential mother will turn out until she flowers. That's why the standard move is to take cuttings from your seed-grown plants once they've spent a few weeks in veg.

Root those cuttings and put them straight onto a 12/12 light schedule to trigger flowering. That way you can judge how each one performs in bloom and pick your mothers from the most promising cuttings. The chosen mothers then stay in vegetative growth permanently, so they can keep producing cuttings down the road.

Why grow cannabis from clones?

When you start a grow, you can go from seed or from clones. Growing from cuttings has some serious advantages over seeds:

Benefits of growing from cannabis clones

1. Faster process: Clones skip germination, one of the most critical and risky stages of the grow because seedlings are so fragile early on.
2. Lower cost: Growing from cuttings is cheaper, since you don't have to buy cannabis seeds, which usually come from seed banks at a considerable price. All you need is to know how to make a clean, precise cut.
3. Guaranteed females: Clones from a female mother are always female, so there's no worrying about spotting and pulling males. With seeds, most growers go feminized to cut the odds of getting males, but you still have to wait until around the second week of flowering to tell them apart. With clones, that step disappears and every plant is a producer.
4. More harvests: Skipping germination saves several weeks per cycle, which can squeeze in an extra harvest, indoors or outdoors. That boosts the efficiency of your grow and your total yield.

How to clone a cannabis plant, step by step

Growing weed from cuttings is a popular way to replicate a mother plant's traits. Here's how to do it, step by step:

1. Pick the mother plant

To start, choose a mother plant, or any plant that's still in vegetative growth. It's essential to pick one with desirable traits like vigorous growth, fast flowering and high yield. Don't settle for less than the best if you want quality clones.

2. Gear you'll need

Before you start, make sure you've got the right tools:

• Sharp, sterilized scissors
• Rooting gel
• Rooting medium (peat, rockwool and so on)
• Propagator (humidity dome)

3. Cut the branch

Using the scissors, cut a healthy branch from the mother. Lower branches are the best bet: they tend to root well, and if one fails, the mother still has plenty of material to work with. Take the whole branch off cleanly and strip the lower leaves to improve airflow.

4. Prep the cutting

Trim the cuttings to a manageable size, usually under 10 cm (4 in). Remove any unnecessary stems and leaves, leaving just the essentials. Make a 45° angled cut at the node to increase the surface area for rooting. Then dip the fresh cut into a dish or cap filled with rooting hormone and hold it there for 3 seconds.

5. Plant the cutting

Poke a small hole in the soil of your container with a pencil or a nail. Make sure the growing medium is moist. Carefully set the cutting in the hole and gently press the soil around it so it makes good contact. Water lightly if needed, but don't flood the container.

6. Trim the leaves

Trim back about a third of the remaining fan leaves. This structural pruning is key: it turns the branch into a mini plant that can focus its energy on putting down roots.

Within 1 to 3 weeks, your clones should have developed roots. Cloning is faster and more efficient than starting from seed, and it guarantees an exact copy of the mother plant's traits.