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. So far I like the peat pot method. My seeds are white widow fems from ILGM that were purchased last year at this time. I have a small homemade indoor grow space and I use a platinum 300 LED grow light. This is my second grow. I started by soaking 3 seeds in water for about 48 hours. Then they went into 3 jiffy peat pots. They all popped through about 3 days later. They are roughly 1″ tall. I have 3 seven gallon grow bags ready with Fox Farm Ocean Forest. They seem a bit small to put in soil now so I’m wondering about how big should they be. Thanks

    1. Hi,

      even though they seem small, put them into the pots now.

      The roots are growing rapidly. They need to spread into soil.

      I assume you can already see the white roots at the side of the peat pellet?

      Now is the time.

      Cheers, Jack

  2. So the germinating seed only needs heat? I’ve seen alot of propagator kit s with light on them, I’ve got the heating mat and the peat pellets with the The plastic green house, I’m planning to use a 300 watt Led grow light once I get them started. The question is do they need light to germination or just warmth or both?? Thanks

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