How to Germinate a Cannabis Seed

You will need the following supplies: cannabis seeds, a planting medium, a heat mat, a humidity dome, and a grow light.

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The Different Methods of Germination

Cannabis seeds can be germinated in many different ways. The most common way is to simply place the seed in a pot of soil and water it regularly. However, there are other ways to germinate your seeds, including using a paper towel or even directly in water. Let’s take a look at all the different methods of germination.


Soaking your seeds before planting is a great way to give them a little head start. By soaking your seeds, you are essentially simulating the conditions that they would experience if they fell from the parent plant and into a puddle of water in the wild.

To soak your seeds, simply place them in a cup or bowl of room-temperature water and let them sit for 24 hours. You can check on them periodically to make sure that they have not sunk to the bottom of the cup and dried out.

After 24 hours, drain the water and gently pat your seeds dry with a paper towel. You can then plant them as you normally would.

Paper Towel Method

This is probably the most common method, and also the easiest. All you need is some paper towels, tap water (filtered is best), and a couple of plates big enough to fit the paper towels in.

Fold the paper towels over a few times so they’re around 6-8 layers thick, then wet them with the tap water. Be careful not to soak them – you just want them to be damp. Place the seeds on one half of the wet paper towel, then fold the other half over so they’re covered. Place one of the plates over top so it’s touching the seeds, then put the whole setup in a dark and warm place. Check on it every day or so to make sure the paper towel is still damp, and mist it with water if it’s drying out.

In 3-7 days, you should see roots poking out of the seed coat. Once that happens, it’s time to plant them!

Direct Planting

Direct planting is the method most recommended by experts, as it offers the highest success rate. It involves placing the cannabis seed directly into its final pot or plot in an outdoor grow area.

To direct plant, start by soaking your seeds overnight in water. This will help to soften the seed coat and encourage germination. Fill your chosen pots or outdoor plot with soil, then make a small hole in the center of each one before dropping in a seed.

Gently tamp down the soil around each seed to secure it in place, then water well. Keep the soil moist but not soggy, and within a week or so, you should see your first sprouts appear.

The Materials You Will Need

Before you begin, you will need to gather some materials. You will need a cannabis seed, a growing medium, a container, water, and a light source. Once you have gathered all of your materials, you are ready to begin.


To germinate a cannabis seed, you will need:
– A pot or container with drainage holes in the bottom. Cannabis seeds won’t germinate in waterlogged conditions.
– Seed starting mix, coco coir, or perlite. Make sure whatever you choose is sterile and doesn’t contain any fertilizer.
– Water


water your seedling every day or as needed. You want to keep the soil moist but not soggy, so be sure to drainage holes in the bottom of your container. A small spray bottle can be helpful for this purpose.

Paper Towel

To germinate your seeds, you will need:
-A glass jar
-A piece of paper towel
-Cannabis seeds

Fold the paper towel in half, then in half again. Moisten it with water until it is damp but not dripping wet, then unfold it. Place two or three seeds on the paper towel, making sure they do not touch each other. Fold the paper towel over the seeds, then place it in the jar. Screw the lid on loosely so that air can circulate. Place the jar in a warm, dark place. Check on your seeds daily, adding water to the paper towel if it begins to dry out. In two to seven days, your seeds should sprout taproots. At this point, they are ready to be transplanted into soil or another growing medium

Potting Mix

The first thing you need is a quality potting mix. You don’t want to use regular dirt because it doesn’t have the necessary nutrients for germinating cannabis seeds. Potting mix is a light and airy mixture that drains well and doesn’t compact. It usually contains a mixture of peat moss, perlite, and vermiculite. You can find it at most gardening stores or online.

Once you have your potting mix, you need to wet it until it is evenly moist but not soaking wet. The best way to do this is to put it in a container and slowly add water until it feels like a wrung-out sponge. If you add too much water, you can always drain it off.

Step-by-Step Guide

The best way to germinate a cannabis seed is to start with the highest quality seed that you can find. Once you have your seed, you will need to soak it in water for 24 hours. After the soaking period, you will need to drain the water and then place the seed on a paper towel. Fold the paper towel over the seed and place it in a dark, warm place.


The cannabis seed needs water to start the germination process. You can soak your seeds in water overnight before planting them, which will soften the shell and allow the roots to emerge more easily. To do this, simply place your seeds in a cup or bowl of room-temperature water and let them soak for 12-24 hours.

You can also use warm water (around 70-90 degrees Fahrenheit) to speed up the soaking process. However, be careful not to use water that is too hot, as this can damage the delicate seedling inside. After 12-24 hours, your seeds should have absorbed enough water and be ready to plant.

Paper Towel Method

The paper towel method is one of the most popular ways to germinate a cannabis seed. All you need is some paper towels, two plates, water and of course your cannabis seeds.

Here’s a step-by-step guide on how to germinate a cannabis seed using the paper towel method:

1.Start by taking two sheets of paper towel and wetting them down with distilled water. You don’t want to use tap water as it may contain chemicals that could harm your young seedling.

2. Next, fold the paper towels in half so that they fit snugly on top of one of the plates.

3. Place your cannabis seeds on top of the damp paper towels, making sure that they have plenty of space between them.

4. Cover the seeds with another damp paper towel and then place the second plate on top, upside down, so that it forms a makeshift ‘lid’.

5. Put the whole setup in a warm place out of direct sunlight and check on your seeds daily, misting them with water if the paper towels start to dry out.

6. In 3-7 days, you should start to see small white roots emerging from your seeds as they begin to germinate. Once this happens, it’s time to transplant them into their forever homes!

Direct Planting

If germinating outdoors, you will want to start by finding a spot that gets plenty of sunlight and has well-drained soil. Once you have found a suitable location, dig a hole that is about twice the size of the seed’s shell.

You will then want to place the seed in the hole with the pointed end facing down. Once the seed is in the hole, gently pat down the soil around it and water it until the ground is moist.

It is important to keep the soil moist but not soggy, so be sure to check on it daily and water as needed. In general, cannabis seeds will germinate within 7-10 days.


If you’re having trouble germinating a cannabis seed, it could be for a number of reasons. It could be that you’re not using the right method, you’re not using fresh seeds, or the conditions aren’t ideal. Let’s troubleshoot some of the most common problems people have when germinating cannabis seeds.

Common Problems

1. The most common problem is incorrect moisture content. The ideal moisture content for a seed is between 60-70%. If the seed is too wet, it will rot. If the seed is too dry, it will not be able to absorb enough water to germinate.

2. Another common problem is incorrect temperature. The ideal temperature for germination is 21-24 degrees Celsius (70-75 degrees Fahrenheit). If the temperature is too high, the seed may not be able to absorb enough water. If the temperature is too low, the seed will not be able to break through its shell.

3. The third most common problem is lack of oxygen. Seeds need oxygen to germinate and grow. If they do not have enough oxygen, they will not be able to break through their shell and begin growing.

4. The fourth most common problem is improper light conditions. Seeds need light to germinate, but they cannot tolerate direct sunlight. If they are exposed to direct sunlight, they will heat up and dry out too quickly.


If your seed does not germinate within a few days, there are a few things you can do to try and salvage it.

-If the seed is too dry, you can try soaking it in water overnight.
-If the seed is too wet, you can try putting it in a warm (not hot) oven for a few hours to dry it out.
-If the seed is old, you can try planting it deeper. Older seeds sometimes need a little extra help to germinate.

Once you have tried all of these troubleshooting tips and the seed still does not germinate, you can assume that it is dead and discard it.

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