How to Speed Up Clone Rooting: Water, Soil, Aeroponics or Rockwool?

Speeding up rooting on your cannabis clones comes down to two things: a clean cut from a healthy, stress-free mother plant, and a rooting method that keeps the cutting moist, warm and oxygenated. Rooting hormone helps, and so does picking the right method for your setup: water, soil, an aeroponic cloner or rockwool cubes. Rooting can feel slow, but the right technique cuts the wait down a lot.

Below we go through the best tips and practices for faster rooting on your cannabis clones, so they grow quicker and stronger.

What is a cannabis clone?

A cannabis clone, or cutting, is a piece of the plant you cut off to grow a brand-new plant. This asexual propagation method copies the mother plant's genetics exactly, which is perfect for locking in specific traits like flavor, potency and flowering time.

You start by picking a section of the mother plant, usually a stem with healthy leaves and growth tips. You cut that stem carefully and put it somewhere that encourages new roots to form, a process called rooting.

During rooting, the cutting's cells adapt and start forming roots, which eventually gives you a new, fully developed plant. Growers lean on this method to preserve their plants' best traits, making sure every new plant is an exact clone of the original.

How do you take a cannabis clone?

Taking a cannabis clone is simple, but it takes some care to make sure the cutting roots and the mother plant stays healthy. Here's how to do it, step by step:

1. Pick the mother plant

Step one is choosing a healthy, disease-free mother plant. Make sure it's in top shape, vigorous and showing no signs of stress, since that directly affects the quality of the cutting and how well it roots.

2. Prep your tools

Use sharp, sterilized tools like pruning shears or a blade to make a clean cut. A precise cut is key to minimizing damage to the plant and boosting the odds that the cutting roots.

3. Cut the clone from the female plant

Make the cut on the mother plant just below a node, the spot where leaves join the stem. Make sure the cutting has at least two nodes so it has a good starting point for rooting.

4. Strip the extra leaves

Remove the lower leaves from the cutting, leaving just a couple up top. That way the plant keeps photosynthesizing while needing less water, which makes rooting easier.

5. Apply rooting hormone (optional)

To boost your odds, dip the cut end in rooting powder or gel. These hormones stimulate root development and speed up rooting.

6. Hold them in water or plant right away

If your rooting medium isn't ready yet, you can park the cuttings in a container of water so they don't dry out. If the medium is ready, plant the cutting directly, making sure it's positioned well to encourage new roots.

Follow these steps and your cannabis clones will have much better odds, setting you up for a healthy, productive new grow.

The best techniques for rooting cannabis clones

Rooting cannabis clones is a must if you want to reproduce plants with specific traits. There are several ways to get there, each suited to different needs and setups. These are the most effective:

1. Rooting cannabis clones in water

Step by step:

• Take the cutting: Pick a healthy cutting from the mother plant, ideally 10 to 15 cm (4 to 6 in) long with at least one pair of leaves. Make a clean cut just below a node.
• Prep: Strip the leaves from the bottom of the cutting so none end up underwater, where they'd rot.
• Into the water: Set the cut end in a container of water, making sure at least one node is submerged. That's critical, since that's where the new roots will come from.
• Upkeep: Change the water every few days to keep it clean and stop bacteria from building up. This is key to giving the roots a healthy environment.
• Transplant: After a few weeks, once the roots reach 2 to 5 cm (about 1 to 2 in), move the cutting into a pot of soil so it can grow on steadier ground.

2. Rooting male cannabis plants and females in soil

Step by step:

• Take the cutting: Make a clean cut on a healthy cutting 10 to 15 cm (4 to 6 in) long and strip the lower leaves.
• Apply rooting hormone: Dip the cut end in rooting powder to kick-start root growth.
• Plant it: Set the cutting in your rooting medium of choice: potting soil, perlite or a mix of both.
• Watering: Water lightly to keep the medium moist but not soaked. This is key, since too much moisture can cause rot.
• Humidity control: You can cover the cuttings with a clear dome or a plastic bag to create a greenhouse effect and hold in humidity.
• Transplant: Once you see signs of rooting, move each cutting into its own container.

3. Rooting cannabis clones in an aeroponic cloner

Step by step:

• Take the cutting: Make a clean cut and strip the lower leaves.
• Into the aeroponic system: Place the cut end in the aeroponic cloner, where it gets misted regularly with a nutrient solution.
• Dial in the environment: Make sure the system holds the right temperature and humidity to encourage rooting.
• Transplant: After a few weeks, once the roots are well developed, move the cutting into soil or your growing medium of choice.

4. Rooting clones in rockwool cubes

Step by step:

• Take the cutting: Cut the clone and strip the lower leaves.
• Into the rockwool: Push the cutting into a pre-soaked rockwool cube. Rockwool holds moisture and makes an ideal environment for rooting.
• Growing conditions: Keep the cubes in a controlled space with indirect light, a stable temperature and the right humidity.
• Watering: Water lightly to keep the rockwool moist without drenching it.
• Transplant: When roots start poking out of the cube, it's time to move the clone into soil or whatever growing medium you prefer.

Each of these techniques has its perks, and which one you pick depends on your setup and personal preference. With the right method, you'll root cannabis clones efficiently and keep your favorite genetics going.