49 day old auto flower not flowering yet

I have 2 auto flower plants. One is 49 days old and the other is 42. They are northern light x big bud. Neither one has started showing signs of flowering yet. Should I switch to 12/12 lighting ? Maybe I got regular seeds by mistake.


Sounds like a good idea, whether a stubborn auto or a photo, change will help


Welcome @Snagwood ! Some autos can be stubborn and need to be kicked into gear. Dropping light hours should help


From what? Summer vacation ends when the days get shorter. and motivates some to move on with life. Summer of '69, I had, once. I am in process of an unusual flip. Today i flipped from 10/2 twice a day to 18/6 once. then in three weeks, I will start dropping 15 minutes a day. Should result strange for current flowers, re-vegers, and seedlig in grow, currently.
Welcome, beginer here, learning growing, too.

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It seems highly unlikely that TWO autos would BOTH fail to flower in the same grow. Not impossible but very rare indeed.

Can you check the packaging and make sure you didn’t get feminized(photoperiods) by mistake?

12/12 as suggested good idea regardless.

Good luck.

Let us know how they turn out.


I had them on 18/6 light. Hydroponic dws with 600w led lights. I dont have that seed package anymore, but it said they were auto flower. I have grown this variety before with great success. 16 oz a plant.


Welcome to the neighborhood :blush:. Happy Growing :blush::v:


:point_up_2: is this from breaking ground? I estimate 28-36 days after a 14 day seedling period for auto flowering. Key word is estimating. Agree with all mentioned on some autos being stubborn and the 12/12 should help push flowering :love_you_gesture:

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The gorilla glue I currently have going took 35 days to start, so I think 12/12 is your solution.

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nice I cant figure out how to get autos to yield that well. I usually get between 5-6 ounces. very well done

What are you growing them in ? Dirt or water ? They grow a lot bigger in water. I have done it both ways. Plus I have only got that much once with those seeds. I generally get around 10 to 12 oz

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That is from the time I put them in the water. I started them in rockwool. They had sprouted for about 3 days before I put them in my dws.

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I had one recently take 45 from the day it popped up above ground. Usually the same strain autos in 22-30 days, so it was a late, late bloomer. Yours may be, too.

:point_up_2: that’s a great average for autos :point_up_2:

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I grow in soil. I also am pretty low tech grow wise. Im just amazed by how well some can get autoflowers to produce.

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Thank you Im happy with it. It just amazes me how some can push them to a really impressive yield.


A little over 9 zips has been my best. 6 average. @CooterJuice has hit 2 seperate 1lb runs :love_you_gesture:

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Here is a picture of the oldest plant.


As a first time grow my strain was girl scout cookies extreme,til this morning everything was just dandy, this morning everything has changed, they are droopy, an it has me wonder what to do , any advice is greatly appreciated here , anxiously waiting for help ? I run advance nutrients , medium is cocochior an perlite , can anyone tell me what to do I’m posting a picture of them , with this questions, they have been looking amazing til now this is coming to the end of week 6 , thanks in advance for advice on correcting what’s wrong


A support ticket will help us help you. Can you please fill out a support ticket? Please include what type of water you are using (RO, distilled, tap.)

COPY/PASTE the below list into your forum post.

Answer these simple questions the best you can.

If you do not know, or do not use something; Just say so; Or post

NA (non-applicable)

• What strain, Seed bank, or bag seed

• Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF

Soil brand and type

• Vessels: Pots, Grow beds, Buckets, Troths

• PH of Water, Solution, runoff (if Applicable)

• PPM/TDS or EC of nutrient solution if applicable

• Indoor or Outdoor

• Light system

• Temps; Day, Night

• Humidity; Day, Night

• Ventilation system; Yes, No, Size

• AC, Humidifier, De-humidifier,

• Co2; Yes, No

If growing Hydro some additional questions:

-DWC? RDWC? Autopots? Ebb and Flow? Other?
-Distance of liquid below net pot (DWC)
-Temperature of reservoir
-TDS of nutrient solution
-Amount of air to solution

Always try to upload a clear picture of any issues you may have to allow the community to assist you. Pictures taken under natural or white lighting are by far the best.

Add anything else you feel would help us give you a most informed answer should be included. Feel free to elaborate, but short and to the point questions and facts will help us help you in a more efficient manner.