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how to tell if marijuana seeds are male or female

Sexing marijuana plants can be a time-consuming process, and if you don’t catch males, there is a risk that even one males can pollinate your entire crop, causing all of your female weed plants to produce seeds.

A lot of classic weed strains that have been around for a while come in feminized form. Some popular fem seeds are:

Pros and cons of using cannabis clones

You might also find a mature seed that has been physically damaged through poor handling, like rough trimming. In those cases, it probably isn’t worth the effort to try and germinate the seed.

If growing male and female cannabis seeds, they’ll start to show their sex organs, or “pre-flowers,” after 8-10 weeks from germination.

Autoflowering seeds are also popular with beginning growers. They are easy to grow because you don’t have to worry about light cycles and how much light a plant receives.

I always see this question everywhere, "Can you tell if a seed is male or female?"

To tell if a seed is male or female, you must first germinate it.
Once the seed sprouts, you need to look where it sprouted from.

Having said that, this could all be a big coincidence. However, if this turns out to be a fact, then the world of growing has made a huge step forward!

I recently tried this out and I can confirm that it works. I germinated 5 seeds. 2 of them that I planted where sprouted out of the side (male) and the other 3 sprouted out of the top/bottom (female). Out of the 2 seeds that were potentially Male plants, 1 of them has shown sex and it is indeed a male. The other plant hasn’t shown sex yet but is very thin and doesn’t have many leaves, making me believe that it is indeed another Male.

I may have the answer but would like for other growers to please try this out and confirm if it works for them.

One of the biggest myths of sexing cannabis seeds comes from a popular chart online.

While it would be much easier for growers to be able to sex their cannabis seeds, the simple fact is that there’s no way to do it. However, sexing plants early on during their growth period is not only essential, it’s completely possible. Growers can even do it before their plants enter the flowering stage if needed. Then male plants can be removed and growers can enjoy a nice, full crop.

5 Tips on How to Sex Marijuana Plants

This same chart states that females will also roll easily across a table or surface, while males will not. While it does say that a magnifying glass and pair of tweezers is needed to examine the seeds. neither of these tools will make it any easier to determine the sex of cannabis seeds.

We know that determining the sex of cannabis seeds cannot be done. However, it’s unclear as to whether environmental factors have any place in determining the sex of marijuana plants.

While growers may not be able to determine the sex of a seed, does the environment have anything to do with it? This is something else that has been hotly contested online.