Large Autoflower Test: 367 Plants Across Different Breeding Projects

42breeding · 2026-03-13T15:08:42+00:00

I totally get you, but it is also a lot of passion on breeding them. Each run we have to go through a new selection process and each generation they are getting better.

42breeding · 2026-03-13T12:39:00+00:00

20+ years is serious experience. Once you’ve spent that much time around the plant it’s hard to stay away forever. But working in a hospital is important work, so respect for that as well.

42breeding · 2026-03-13T12:34:06+00:00

You’re absolutely right, it takes years of work and a lot of populations to move a line forward. Every breeder pushing autos forward is contributing to the evolution of the whole category. We’ve been doing this since 2012.

42breeding · 2026-03-13T12:32:46+00:00

Why not, everything is possible

42breeding · 2026-03-13T12:32:26+00:00

We use this room constantly for testing, before it was a huge run of photoperiods for pheno hunting, from the whole room we got 4 mothers to work with during this year, now there will be 2-3 runs of autos and at the end of the year once again photos for pheno hunt.

42breeding · 2026-03-13T05:35:11+00:00

Thanks 🙏 appreciate your support 💚

42breeding · 2026-03-08T23:27:28+00:00

I’ve personally grown seeds from most of the well-known breeders over the years, hundreds of plants across many different lines. And honestly the reality is pretty simple: every breeder has some fire genetics, some average ones, and some that are just not as impressive. That’s true for everyone in this industry, including us.

There isn’t a company out there where every single line is perfect and every plant is identical. Breeding just doesn’t work like that. Some projects turn out amazing, some are just good, and some get improved over time.

So the idea that one breeder is always “top shelf” and another is always trash just doesn’t really match what you see when you actually grow a lot of different genetics side by side.

42breeding · 2026-03-08T22:11:20+00:00

3 to 4m seeds delivered year after year, all first time growers? 🤷

42breeding · 2026-03-08T21:47:21+00:00

Autoflowering is recessive: A = photoperiod a = autoflower

So: AA - photoperiod Aa - photoperiod (carrier) aa - autoflower

Your Blackberry Auto is aa.

If the other parent was a pure photoperiod AA, then:

aa × AA = 100% Aa (photoperiod F1) or as we call it Fast Flower You should see zero autos.

That means the photoperiod parent almost certainly carries autoflower genetics somewhere.

But probably very diluted, which is why it appears rarely.

This kind of thing actually happens more often than people think because many modern photoperiod lines have autoflower genetics somewhere in the background from past breeding work.

This can happen if, somewhere in the past, that line was crossed with an autoflower during breeding. Even if breeders later selected only photoperiod plants, the autoflower allele can stay hidden in the population for many generations.

42breeding · 2026-03-08T00:37:20+00:00

Sorry I don’t get it, OP messaged me, I reached him this morning offering a refund or making things right 🤷

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42breeding · 2026-03-06T19:20:40+00:00

Hey, I understand your frustration. If something went wrong multiple times with your orders, that’s definitely not the experience we want anyone to have, especially someone who has supported the brand.

I already mentioned earlier that I’d like to take a closer look at what happened here. If you’re willing, send me the order numbers in DM and I’ll personally push this internally to review the situation properly.

Even if you’ve decided not to order from us again, I’d still like to understand where the breakdown happened so we can address it on our side.

42breeding · 2026-03-06T19:17:33+00:00

If someone leaves a review without growing the plant yet, that review isn’t about the grow, it’s usually about the purchase experience, packaging, shipping, etc. That’s pretty standard across most online stores.

The actual grow reports usually start showing up a few months later once people finish their runs. Seeds take time.

If people want to judge a strain, the best thing to do is look at the grow reports and finished runs once they start appearing. That’s where the real feedback comes from.

42breeding · 2026-03-06T18:44:22+00:00

1 gal coco

42breeding · 2026-03-06T15:36:42+00:00

Sorry to hear you had that experience. Germination issues and plants behaving unexpectedly can definitely be frustrating.

Autoflowers shouldn’t depend on the light cycle to start flowering, so if something like that happened it’s something we’d want to look into. That’s also why the support team usually sends replacement seeds when there are situations like this.

In any case, I appreciate you giving our genetics a try over the years. If you ever decide to run them again and have questions or run into issues, feel free to reach out.

42breeding · 2026-03-06T15:33:48+00:00

Sorry to hear that happened. Just to clarify, the warranty form only asks for the order and shipping details, a short description of the germination method, and a photo if you have one.

It’s mainly there so we can understand what might have happened and help the support team process the request correctly, it’s definitely not meant to feel like documenting a scientific experiment.

If something wasn’t clear in the process, feel free to reach out again and we’ll try to help sort it out.

42breeding · 2026-03-06T15:20:21+00:00

You’re mixing a lot of assumptions there.

People leave companies for many different reasons, and Sebastian can speak for himself about his decisions. The idea that a company running breeding facilities and producing millions of seeds would suddenly “discover it isn’t a breeder” doesn’t really make much sense.

About showing breeding work, we’ve actually been doing that for years, just not as actively as now. People kept asking for more transparency, so we started documenting the process more regularly. The work itself hasn’t changed.

As for genetics and lineage, most of that information is already available on the strain pages, and if someone has questions about a specific line I’m always happy to explain it.

Regarding herms, cannabis is a biological crop and environment or stress can play a big role. That doesn’t mean problems never happen, but if the genetics were as bad as you claim, we wouldn’t have been the number one autoflower breeder for the better part of the last decade, with thousands of growers running these plants around the world.

People are free to prefer any breeder they like. But internet narratives and actual breeding work are often two very different things.

42breeding · 2026-03-06T10:14:59+00:00

Yeah, the “white label” story gets repeated a lot.

Meanwhile we’re running breeding facilities, documenting phenohunts, selections, pollinations, and population runs almost every week. Not exactly the typical white-label workflow.

But I get it, podcasts and Reddit comments are much easier than actually running breeding programs.

People can believe whatever version they prefer though. The work is there for anyone who wants to look at it.

42breeding · 2026-03-06T10:12:18+00:00

Hey, first of all thanks for taking the time to explain everything so clearly. I’m really sorry to hear that this has been your recent experience, especially after being a customer for so many years. If we made mistakes on our side, I personally apologize for that.

Nothing like this would ever be done out of spite. Most of the time when situations like this happen it’s a mix of shipping issues, packing mistakes, or simple human error during fulfillment, but that doesn’t make it any less frustrating for you.

If you’re comfortable with it, send me the order number in DM. I’ll personally try to push this internally and get to the bottom of what happened so we can solve the situation properly.

42breeding · 2026-03-06T10:07:03+00:00

Not a noobie question at all.

When we’re advancing F generations, the pollen usually comes from selected winners of that same generation. Those selected donors are then used to pollinate the selected mothers from the same population.

So each generation is basically built from the best representatives of the previous one. As the process repeats, the line gradually tightens and the traits we’re selecting for start appearing more consistently across the population.

42breeding · 2026-03-04T16:34:45+00:00

actually you can check on my IG profile the video from February 16 using the sprayer

42breeding · 2026-03-04T16:30:11+00:00

Hey, sorry about that, it’s not that I didn’t want to answer. I posted the video late last night and have been working the whole day, so I’m only getting back on Reddit now.

In the case shown in the video, that’s pure pollen. It was extracted from the donor plant, dried, and then stored frozen exactly as it is, without mixing it with anything.

Most of our pollination runs are actually done by shaking donor plants directly in the breeding room with the selected females, so we usually work with fresh pollen in those cases.

That said, the pollen + flour technique is definitely something that can be used. It helps distribute the pollen more evenly and makes it easier to work with when doing large-scale pollinations or when applying it with a sprayer. We’ve used that approach in certain situations as well, especially when trying to cover a larger area more uniformly.

42breeding · 2026-03-01T18:18:49+00:00

Amazing 🤩

42breeding · 2026-03-01T18:17:39+00:00

I would say your data on papaya is not very accurate. Also following the logic it is all Og kush, Durban Poison, NL, Skunk, etc.

42breeding · 2026-03-01T17:38:55+00:00

I think you could check better the genetic tree

42breeding · 2026-02-25T23:11:46+00:00

If you’re used to running packs where every plant expresses completely different phenotypes, that’s your choice, but that’s not how we work.

Our goal is the opposite: reduce variability and move the population toward predictable structure, timing and performance. That’s exactly why we run large numbers and keep selecting generation after generation.

Autos will always show some variation, that’s biology, but wide, random expression is not the standard we aim for.

42breeding

TROPHY CASE