Sauga's Got Amnesia But Didn't Forget The Red Dragon

Hey everybody...

please take a seat and pass those doobies around because today's class is all about Autoflowers! I'll try and keep it to a minimum and just the basics but if you have any questions feel free to ask.

So the obvious question to start with is what is an autoflower? In a nutshell autoflowering plants are plants that begin to flower when the plant has reached a certain phase of development. There is no triggering of this event and it's a natural process that occurs when the plant is ready. This is opposed to photoperiod flowering, in which the plant begins to flower after the summer solstice. For inside growers this means your light schedule changes to 12/12, meaning 12 hours of lights followed by 12 hours of complete darkness.

So where do autoflowers come from? Autoflowers come from feminized seeds. Although you can clone an autoflower by taking a small branch from a mother and letting it grow under a 24 hour light cycle, feminized seeds are the preferred method. Clones will usually produce lower yields than the mothers.

So let's talk about feminized seeds for a bit. Feminized seeds will always produce a female plant, which is the type of plant that produces the psychoactive cannabis flower that we all love.
Autoflowering seeds are particularly useful in northern climates, which have long summer days. Once the nights become long enough to trigger flowering, the rain and frost soon follow. This means that many photoperiod plants fail to develop full flowers before the cold arrives.
Autoflowering seeds also have some advantage indoors for those who enjoy sativas. These plants are generally small, compact, and can handle a wider range of grow environments. Sativas, on the contrary, are tall plants with a long flowering period. By starting with autoflowering sativa seeds it makes it easier to grow these wily plants indoors.
Most indica plants are also short and perform well indoors regardless of whether or not you start with autoflowering seeds.

But how does a autoflower plant come from a feminized seed?
One particular species of cannabis has made autoflowering seeds possible. The often overlooked Cannabis ruderalis is mixed with Sativa and Indica varieties to create autoflowering versions of some of the most popular strains.
Cannabis ruderalis is native to Russia and has developed unique adaptations to the cold environment. Ruderalis plants are very small, only growing up to two feet high. Unlike the psychoactive varieties of cannabis, ruderalis plants produce very few cannabinoids. They also automatically mature in seven weeks, regardless of photoperiod.
Seeds today are indica or sativa stains crossed with a ruderalis variety and bred over multiple generations. The autoflowering genetics are recessive, meaning that it takes quite some time to develop autoflowering varieties of strains. The result is either a psychoactive or high-CBD strain that will begin to bud on its own, regardless of the available light.

So what's the bottom line?
Of course there are several things to consider when running autos. New growers think that autos are easier to run because the wording auto is often misleading and the grower thinks everything will take care of itself. New growers should start with photos simply for the fact if they encounter issues during vegetative growth the problem can be fixed before flowering begins.
Yields from autoflowering plants tend to be slightly less. On the high end, some autoflowering cannabis seeds can yield up to 150 grams per plant, though the average is somewhere in the double digits.
Autoflowering plants should be in their final home as soon as possible and feeding should begin within a few days of being above the soil. Of course that is another topic altogether and this was mainly to give an understanding of what an autoflower is.

Class dismissed!

:Rasta:
What a great explaination! Thanks. I've never grown an auto. I've thought about it, even had a couple strains I wanted to try... Shiznit, Think Big, or maybe a strain that I've grown as a photoperiod. But I'm a pussy, so I'm not sure if I'll ever try one.

I noticed you recommend a dark period. Do you see much of a benefit if you run them like that over straight 24 hours? I've messed with the off period to see if the plants would ripen faster, but I had nothing to compare it to, so that didnt work haha.

Thank you again for auto school. " I brought my pencil" that was my best David Lee Roth impersonation. It's one of my super powers
 
There's no need to flip autos AJ... sorry I must have misunderstood what you were saying. Keep your light schedule at 18/6 or 20/4 unless you are looking to conserve electricity costs. The autos will love the fact you are giving them more light. More light means bigger and better buds and autos are designed to work well with longer light periods. Normally you flip so you can start the flowering cycle with photos, but autos don't have a schedule that they need to worry about.
When I said flip I meant start to flower, not adjust my settings at all:)
 
Autoflowers come from feminized seeds.
To be clear, this doesn't mean all auto seeds are feminized- Seedsman stocks 65 varieties of regular auto seeds....so be careful when ordering- if you want fems, make sure they're fems...
 
This is opposed to photoperiod flowering, in which the plant begins to flower after the summer solstice. For inside growers this means your light schedule changes to 12/12, meaning 12 hours of lights followed by 12 hours of complete darkness.
I noticed you recommend a dark period. Do you see much of a benefit if you run them like that over straight 24 hours? I've messed with the off period to see if the plants would ripen faster, but I had nothing to compare it to, so that didnt work haha.
If you are referring to my statement above that was for photoperiods. Autos I personally run 18/6.
 
If you are referring to my statement above that was for photoperiods. Autos I personally run 18/6.
Yeah I was talking about the dark period for autos. I was curious about the benefits
 
Yeah I was talking about the dark period for autos. I was curious about the benefits
I'm not sure if there are any benefits. If I recall Shed mentioned something about plants not needing a rest period, but I've always found 18/6 produced great results. When I am in early veg I run 20/4.
 
I'm not sure if there are any benefits. If I recall Shed mentioned something about plants not needing a rest period, but I've always found 18/6 produced great results. When I am in early veg I run 20/4.
Cool thanks
 
Cannabis is in a class of plants that will grow without a dark period. That doesn't mean that blasting them with 1000 PPFD 24/7 won't stress them out though. All plants have a Daily Light Integral they need for best growth. Once you hit that you can turn off the lights without worrying about lowering your returns.
Interesting
 
Some plants will droop once they have gotten their daily maximum light allowance, so it really depends on how strong your lights are. And what you want your electric bill to be!

I thought i was just thinking crazy when I questioned my plants on this. My one litterally is sleeping all the time and i often feel light on while shes limp af is doing more damage then good.

If they are consistently sleeping 3 hours before lights off should i reduce my light schedule by 3 hours?
 
If they are consistently sleeping 3 hours before lights off should i reduce my light schedule by 3 hours?
Since they're autos you won't have to worry about sending them into flower, but I would take 2 hours off and see how they are after a few days. What's the schedule now?

If you have a spare $32, a lux meter is a great investment for keeping track of how much your plants are getting and how high you should have your lights.
 
Since they're autos you won't have to worry about sending them into flower, but I would take 2 hours off and see how they are after a few days. What's the schedule now?

If you have a spare $32, a lux meter is a great investment for keeping track of how much your plants are getting and how high you should have your lights.
Its now at 18/6. I use a app called light meter and been told its pretty accurate. Plant tops are curently 68k lux at 15". My one sativa sleeps a bit less, usually 1-2 hours before lights off while my indica one sometimes sleeps 4 to 5 hours before lights off
 
Farside did a test with apps against his lux meter and found the apps to be too far off to be effective. If you really are at 65k lux you could probably either raise the lights or cut some hours off the timer. Your indica sounds upset.

Another way to handle it is to use window screen under the light where the indica is to lower the lux. A number of folks here have had success with that technique.
 
Its now at 18/6. I use a app called light meter and been told its pretty accurate.
Here's a couple of links to read. Maybe Light Meter app is better but worth the read anyhow.

 
Excellent write-up on Autoflowers @MrSauga !

Do you a favorite Autoflower strain yet?
Thank you... and I do! It's Pineapple Express from Fastbuds. It's not the most potent but grows big buds and tastes great.
 
Im basically going off mars hydro's light distance chart and assuming if i dont see any light burn then the distance is considered "okay". Im running tsw2000

Here's a couple of links to read. Maybe Light Meter app is better but worth the read anyhow.


Ty mrS, will check it out
 
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