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Breeding 101 – How to Create Your Own Marijuana Strain

Smoking is fun, and growing can be a lot of fun. But breeding marijuana and creating your own strain is where the art of marijuana becomes really fascinating. All you’re really doing when you breed marijuana is taking two plants, each of a different strain, and bringing them together to create your very own strain that is perfect for you. Doing it isn’t all that complicated, but you do have to be careful or you risk seeding, and essentially destroying, an entire crop.

What is breeding? Is it like sex?bee weed marijuana plant

The birds and the bees is a concept seen all throughout nature, and cannabis is no different. Cannabis plants are dioecious plants, meaning that any one plant will produce either male or female flowers. For breeding purposes, you’ll need one male plant and one female plant. The strains you choose from each should be different (otherwise you’re not creating a new strain, you’re just copying a strain), and should be quality plants.

The male plant will fertilize, or pollinate, the female plant, but it’s not “sex” in the way one would think. In fact, the plants don’t even have to be close to each other in order for pollination to occur. In nature, elements such as the wind and bees can carry the pollen from the male plant to the female plant and the female will be fertilized. When a grower is breeding cannabis to create their own strain however, it’s typically done indoors and pollination relies on the grower.

How to breed

While you do need a male plant to breed, you won’t use the entire plant. All you’ll really need is one branch, as this will give you as much pollen as you need. Once the male you’ve chosen starts to show flowers, remove them from the female plants to avoid the male from turning the entire crop to seed. Also make sure you remove the branches around the branch you’ve selected to avoid accidental pollination.

Marijuana pollen sacs in bagWhen the sacks, or pollen pods, start to open, carefully wrap a small paper bag over the branch and secure it with a piece of string or elastic. It doesn’t have to be wrapped really tight, just enough to hold the bag over the pod. Leave the bag on for several days in order to collect as much pollen as possible.

When you’re ready to remove the bag, gently shake the branch to remove as much pollen as possible. You can dry this pollen and save it in the freezer for several months, but the female should be ready for fertilization 3 to 4 weeks after the first fuzzy white pistils appear. Once they do, place the bag directly over a female branch and gently shake the bag. You may want to remove the female plant from the rest of the crop to avoid accidental seeding of the entire crop.

Pollinating marijuana plants to breedThe bag only needs to remain on the female branch for two or three days for fertilization to take place. After that you can gently remove the bag and wait for your seeds to show up in 3 – 6 weeks. You can remove the seeds when they split open from their pod, or when you can hear them rattling around inside. Freshly harvested regular seeds probably won’t germinate though, so make sure you store them in a cool, dry place for a month or two before you try to start growing them.

10 thoughts on “Breeding 101 – How to Create Your Own Marijuana Strain”

  • chuck

    ok I saw the post about the the bag over the male but i have been told than you have to do this a few time to make a cross
    you need to save the bag and to do it to the offspring 3 or 4 times. is this right? thanks

  • OG Rasta

    Has anyone crossed cendi99 with cookie

  • Jennifer Deline
    Jennifer Deline 11th May 2017 at 2:58 am

    Has anyone crossed green crack with Ice kush?
    I did,just wanna know if someone else has already.

  • Johnd892

    Hey very nice blog!! Man .. Beautiful .. Amazing .. I'll bookmark your website and take the feeds alsoI am happy to find a lot of useful info here in the post, we need work out more techniques in this regard, thanks for sharing. . . . . . ddeddgkddddg

  • dr b

    I have been doing my own strains for about 3 years now. It requires alot of attention to detail. Keep written records of eveything for sure! I got good results crossing GSC with northern lights. We call it pride of the lake. Lol. Guess u can tell I live on a lake. Lol

  • Wezziy

    That what I was told to do as well thanks for the post .. 1 ? Tho should I freeze the seeds after drying them to germinate them properly ?

  • Darin

    Has anyone crossed sledgehammer haze with frankenberry? I am this year, and the next few actually. Imma name it "sledgeberry", maybe "frankensledge". Got the seeds from
    -TOKESIGNALS- steve elliot. He sent me a bunch of seeds from his stash. Way cool on his part. Check out his "little black book" for growers. Its old school stuff.

  • Chris

    Crossed Texada Timewarp mom witha Blue Chesse father. I'm growing the F1s now to breed again with the texada mom. Has anyone do e a TeX cheese cross and if so how did they do?

  • Scott

    Yo guys what's up

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