When a seed enters an environment with enough moisture, it will increase in size and slowly break out of its shell. A seedling or germ forms from which roots will emerge, helping the baby plant absorb nutrients from the soil. Seeds naturally develop roots facing down and stems stretching upward, allowing the young cannabis plant to simultaneously feed off light and earth.
To germinate seeds indoors, use any of the methods described above. Within a few days, you’ll have popped seeds ready to transfer to a growing medium.
The best germination method depends on the cultivator’s choice. Here are some of the most common ways to pop your cannabis seeds.
The downside of water germination is that once they’ve popped, you’ll need to maneuver them into their growing medium manually. This is a delicate process, as germinating seeds are extra fragile, and any harm risks the development of your plants. Make sure to place the seed roots down in the soil when you transfer to a pot.
Use a spray bottle to moisten the paper towels and then store the cushioned seeds between two plates, under a face-down bowl, or gently place them in a plastic bag. Photo by: Gina Coleman/Weedmaps
One benefit of the soil method is that transferring the seedling to a bigger pot is simple. The cannabis is less likely to become stressed and can adapt to the new environment quickly. A disadvantage would be needing to buy clean soil rather than using some from outside. Pathogens in the dirt can damage the young seedling. Soil density can be an issue with air flow, and growers need to be careful about the seed placement.
Here is an explanation of each germination method.
Some general tips for germinating cannabis seeds include:
Jiffy Peat Pellets, Starter Cubes, and Seedling Plugs
While cannabis seeds primarily need to remain moist, you can soak them in water overnight. All you need is a glass cup. Fill it with three-quarters of a cup of water that is filtered or pH neutral. Make sure the temperature is neither cold nor warm. The ideal temperature is lukewarm.
Place the seed inside the hole and cover it up. Then, you can add some water. The packaging should have instructions on how much water to add. The weed seeds can take anywhere from two to five days to finish germinating.
However, the Rockwool method also has some drawbacks. The material does not break down since it is not a natural substance. As a result, the cubes are not an eco-friendly option. Rockwool has poor germination rates, and it comes with a high pH level. The material also can affect your health. The Environmental Protection Agency found that the fibers in Rockwool can irritate the skin, eyes, nose, and throat. You may experience a sore throat or coughing.
The paper towel can dry out, so put a bowl or another plate on top to trap the moisture. Alternatively, you can spray the towel every five hours to keep it wet. The process can last one to four days, so check periodically to see if the taproot appeared. If you have older seeds in the paper towel, you may end up waiting longer. Afterward, you can place the young seedling into a growing medium.
Actually one of the easiest ways to germinate marijuana seeds, especially for beginners, is to use peat pellets. Peat pellets are great because they have a high germination rate, usually between 80% and 90%, and they are great for the roots too.
This tends to work best if you leave the seeds in the water for about 1 day. This method is usually pretty quick with germination, and can jump start the process, often only taking a single day for germination.
Another commonly used method for marijuana seed germination is using paper towel or cotton pads. The benefit here is that germination process is very easy to keep an eye on, it tends to be fairly safe, and is very easy to get started. Now, be sure to pick good cotton pads or paper towels, ones that are smooth.
4. In Peat Pellets
So, how long does it take to germinate marijuana seeds? Usually, it should not take more than 5 days for the germination process to happen from start to finish, and there are various methods you can use to do this which we cover on this article to help you.
However, if nothing has happened in the first 3 days, chances are that the method has failed you, and the seeds may have drowned.
Once the roots have sprouted, and are about 4 mm long, you then have to place them into soil. Do not place them into soil if they are shorter than 2 mm, and don’t wait until the roots are longer than 5 mm, as the roots will start to grow into the paper towels and cause you trouble.
Just be careful when transferring the germinated seeds to soil, as the root system will be fragile.