Germinating Marijuana Seeds

Last updated: June 15th, 2021

How to germinate Marijuana Seeds Successfully, every time

Buy windowsill greenhouse + peat pellets

The Peat Pellet Method!

It’s the safest way.

Little babies are fragile, aren’t they?

Yes. And that’s why we treat them very carefully.

We keep them warm, we put them in a safe cot.

The same is true for plant babies.

A freshly sprouted cannabis seed is super vulnerable.

We shouldn’t touch it with our oily, dirty fingers.

You wouldn’t touch a human fetus, would you?  (I hope not)

Therefore, I recommend you sprout your seeds in ‘Peat Pellets’ (and NOT in a paper towel).

windowsill greenhouse to germinate cannabis seeds

You can buy them in any gardening store or online here.

The peat pellets come dried and compressed out of the box.

The look like this:

The first thing we do now is, we soak them in water.

After 10 minutes, they will have become like Kim Jong-Un: A little chubby:

wet peat pellets

Now it’s time to plant a seed!

Use a pencil and poke a shallow hole. Around 1/2 inch (1.5 cm) deep into each pellet.

Put the seed in there and cover it up.

One seed per peat pellet.

Putting Cannabis Seeds into peat for germination

By the way, there are people suggesting the seeds needs to be placed in a certain position. I found that not to be true when using peat pellets.

Once the seed is in the wet soil, it will begin its life. Keep the peat pellets warm.

But not too warm! 20 deg celsius – 28 deg is good. That is 68 – 82 degree fahrenheit.

Make sure that the Peat Pellets stays moist during the whole time. Don’t let it dry out … or its the end for that seed!

Good seeds will have a rate of 98% successful germination.

After 3 – 8 days, the plants will stick their heads out. Like this:

young, germinated Cannabis Seeds

Ok OK, I kinda messed this up a little.

The plants have grown very long. Because I did not check on them for 5 days. They germinated and desperately tried to reach light.

Usually, the germinated plants need to go under a light (grow lamp or sun) immediately when they stick their head out.

They need direct light. Lots of direct light. As much as possible.

Once the plant has popped out, you’ll also transplant it into a pot.

transplanting germinated seed in pot

Since my plants here are very long, I bury it very deep into the soil.

I bury large parts of the stem. So the seedling won’t fall over.

The buried stem will later grow roots.

Germinated seed in pot

No the plants need to go under the light.

Give them a bit of water and they will begin their journey through life!

Time to celebrate, you just germinated some new plants!

Couple days later, they’ll look like this:

Young cannabis Plant

About germinating Marijuana seeds in a wet paper towel …

I have seen many people write about the “wet-papertowel-method”.

With that method, the cannabis seeds are put in a wet tissuel where they will germinate.

Than the seeds are put into peat pellets or other soil.

That’s not a good way to germinate Marijuana Seeds. Because the freshly germinated seeds have to be touched.

Touching that little baby is similar to touching a fetus in the womb. It is likely to do harm. Thats why paper towels are not good.

Where to buy Cannabis Seeds safely?

I listed reliable online seed shops on this page. They all ship to the US.

89 thoughts on “Germinating Marijuana Seeds

  1. Hey Jack,

    Just wondering how dry I can leave the pellets? So far I’m on day three and I check them daily but have let them get dry but not completely. As long as I get them wet daily or should I try to make sure they are always soaking? Should I ensure they stay as wet as say the paper towel in the paper towel method?

    I am monitoring my heat and humidity and always keep it above 22C/ below 28 and Humidity at average 55%.

  2. so i have the pots made out of fabric. How much soil do i put in….half? less than half? also scared of watering cuz im assuming the water would leak through…first time grower if you could elaborate on the method a little for me please

    1. Hi,

      you fill them up all the way to the top.
      As much soil as possible.

      The more soil you have, the better your plant will grow. And the bigger it will be.

      Yes, the water will leak through.
      That is expected and necessary.

      Because cannabis doesn’t like to stand in water, so all the excess needs to drain away.

      Cheers, Jack

  3. My seeds have just pop can i sit them on the window seal for two weeks before i take them out side

  4. So my seeds have a root coming out in the pellets. About 1/4 inch thick. But for the past day or so, nothing green has popped out. Is that okay or did I screw up?

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