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Tips on how to grow an autoflower?

  • Thread starter Thread starter MrSativaMan
  • Start date Start date Oct 13, 2025
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Tips on how to grow an autoflower?

MrSativaMan Oct 13, 2025 10 Replies 878 Views
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MrSativaMan

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#1
I've grown a couple photoperiods but I would like to try an autoflower, I have frozen white grape autoflower that's a week old. Any tips?
 
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TannedViking

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#2
What are you using for the auto? Soil, nutes etc. Generally the most important thing is to not stunt it by trying out new things. It likes stability.
 
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MrSativaMan

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#3
TannedViking said:
What are you using for the auto? Soil, nutes etc. Generally the most important thing is to not stunt it by trying out new things. It likes stability.
Click to expand...
Im using soil that ive been reusing for like 3 years now, its regular dirt with Mostly miracle grow but I doubt any of the miracle grow nutrients r still active. I use miracle grow during veg and I use "big bud advanced nutrients" during flowering for my photos so I suppose I'll do the same for this
 
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LoveGrowingIt

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#4
What I've noticed is it's important to be sure the vegetation stage goes well. They grow rapidly and benefit from plenty of nutrients. With photos, we can decide how long they're in vegetation. For autos, we don't have that option, so getting that stage right is critical.
 
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MrSativaMan

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#5
LoveGrowingIt said:
What I've noticed is it's important to be sure the vegetation stage goes well. They grow rapidly and benefit from plenty of nutrients. With photos, we can decide how long they're in vegetation. For autos, we don't have that option, so getting that stage right is critical.
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I see, do i give them a lesser dosage of feed then my photos?
 
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Halloweed

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#6
Ive been running autos. They are less forgiving. As stated above the veg stage is critical. Veg doent have a set time. They flower when they want to.

Issues I've had is ph imbalances, and not getting the nutes right. Sometimes light is too close.
 
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Halloweed

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#7
MrSativaMan said:
I see, do i give them a lesser dosage of feed then my photos?
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I would starting putting less until you see how they do. Then as they get bigger you can slowly raise the dose.
 
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LoveGrowingIt

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#8
MrSativaMan said:
I see, do i give them a lesser dosage of feed then my photos?
Click to expand...
I'd say it depends on what's in the soil at the start. I reuse soil, too, and that makes it more difficult to know the condition of the nutrients remaining in the soil from previous uses. I usually don't transplant after sprouting. I just put the plugs into the final pot. So, it might help to discuss transplanting, as others would have more to say about it than I do.

The type of nutrients matters. I use organics, which need more time to take effect than synthetics. So, for my next auto grow, I'm planning to give it a bigger dose.

The pH matters, too.

Overall, it's important to get everything right from the beginning because there isn't much time to make corrections.
 
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JIMKSI64

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#9
Just like photo period plants these will present multiple versions. Prepare for weird children.
The first 3 weeks sets the stage. If you are not at node 5 or better cull the plant. Do not try and save a lagging auto 8 weeks of flower for 25 grams is stupid
I got 20 autos and it took me 1/2 to nail down the nutrition add and the light requirements. Now I have 10 running and it seems easier that the first 4.
Photos in flower take way hotter lights than autos in 18-6 If you try to run the same ppfd or lux you will burn em up.
Auto power.
 
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grayoldnproud

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#10
MrSativaMan said:
I see, do i give them a lesser dosage of feed then my photos?
Click to expand...
After killing several, I didn't give any nutes for 12 days. Then started with Miracle Grow All Purpose at 1/4 teaspoon/gallon. I didn't give it all to the plants. Then the next week I upped to 1/2 teaspoon/gallon then the next two weeks they got 3-1/4 teaspoons/gal (not 3 and 1/4 teaspoons but 3 one quarter teaspoons or 3/4 teaspoon). Then after solidly in flowering I switched to Miracle Grow Bloom and they got 3-1/4 teaspoons but they didn't care for it much so I went down to 1/2 teaspoon and they are doing quite well. I gave each only one dose of Bloom City Cal Mag at 1/4 teaspoon/gallon and same caveat, I didn't give each a whole gallon.

I will be switching from Miracle Grow, not that's it bad or anything just I want more control on which macros I am giving at what amounts.

Again I don't necessarily give it all to one plant. On average I would say initially they got two cups then upped to .5 liters then it ramped up from there based on soil dryness but it panned out to were I was watering on Saturdays and feed on Tues seemed about good for what I have. Right now I am at 1/2 gallon each time for two plants and 3/4 gallon for the other two.

Main thing I found was stability, once popped get them in their final planting container and don't transplant. And less can be more. Don't overwater. Don't kill them with light (done that too). I have mine outside during the day and under lights from 5:30 until 4:30.

I am by no means an expert and I did not stay at a holiday in. This is what worked for me so far but I have about 2-3 weeks to go on some. Who knows what tomorrow will bring.

Best of luck.
 
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alamo556

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#11
Certainly, you got some great advice. One thing is for sure is that autos move fast and you just don't have much recovery time if something goes wrong. Have been a General Hydroponics Flora Series fan for years, but with autos one moves thru the nute strength stages (from mild growth thru ripen) much quicker.

Good luck
 
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Replies 10
Views 878
Started Oct 13, 2025
Latest post Nov 10, 2025
Starter MrSativaMan
Forum Cannabis Infirmary

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