Minimum pot size for tall autoflowers? 40-60 inches / 100-150 cm

[Astral22]

Hi people, i'm planning my grow and i was wondering what pot size would you recommend for tall autoflowers 40-60 inches / 100-150 cm?
I would like to use the smallest possible pot size without getting rootbound. I know it's usually recommended to use a 3 gallon pot, but is it ok if i use a smaller pot for Sativa dominant autoflowers or 50/50 hybrids?

Also, could you please help me choose which strains to grow, from the seeds i already have? And which pot size?
These are the seeds i have:

SWEET SEEDS
- +Speed Auto
- Sweet Gelato Auto
- Sweet Cheese Auto

ROYAL QUEEN SEEDS
- Quick One
- Haze Berry Auto
- Royal Haze Automatic

BULK SEED BANK
- Auto AK-47
- Auto Chronic

STITCH - SHORT STUFF
- Mi5
- Russian Rocket Fuel

My goal is to grow multiple strains at once, as many as they can fit in 2x4x6 (60x120x180cm) under Mars Hydro TSL2000 (300W), without having any issues with roots and overcrowding. I would prefer not to top the autoflowers since i'm inexperienced and i heard it's a 50-50% chance, so i would just do basic LST and defoliating. I'm hoping for a minimum yield of 100g (4oz) in total from all plants, but of course anything more is a bonus.
As for the height difference, i'm planning to use some sort of pedestals to raise the shorter plants. Or i would just let the short plants grow naturally without training, while doing LST on taller plants. I don't mind different watering schedules since i'll be attending the plants every day for my first grow. The only downside would be different nutrient needs and pest resistance because i'm a noob, but i figured i could learn as i go, thoroughly researching every deficiency. I'm using the complete BioBizz line and i've been told it's hard to burn plants with them?
Also i don't mind different harvest times because i'll have a separate drying tent.

So if i would choose my top 4 i would go with Sweet Gelato, Sweet Cheese, Quick One and +Speed Auto (2-3 gallon pots)
What do you think about this, am i biting more than i can chew? And could i somehow manage 6 plants by adding Royal Haze Auto and Auto AK47 to the list?
Thanks in advance.

 

[Autodoctor]

Use 5gln fiber pots if you don’t want to lose yield compaired to 3. I have done the test

 

[Autodoctor]

Would do three plants in that tent size

 

[Autodoctor]

Or can waist seeds and do 6 3gln pots and end up with same yield

 

[Astral22]

Thanks for your reply.

For now i'm mostly interested in the variety of strains, a little bit of each strain. For example if i do 4 different plants and get at least 30 grams of each, i would be happy with 120g of mixed weed in total.
But i was wondering if taller autoflowers would get rootbound in small pots, or do you think it's not a problem? For example Auto AK47 is 70% Sativa and it can grow up to 140cm. If there's a chance for rootbound in 2-3 gallon pots, then i would take your advice and do 5gal pots.

Some of these seeds i got 6-12 months ago and they stayed in a humid room, so if they even germinate i want to use them sooner than later, i doubt they will survive for much longer. And i'll probably do photoperiods next, so for me it's ok if i use these autos for my first grow.

 

[twentyeight.threefive]

Thanks for your reply.

For now i'm mostly interested in the variety of strains, a little bit of each strain. For example if i do 4 different plants and get at least 30 grams of each, i would be happy with 120g of mixed weed in total.
But i was wondering if taller autoflowers would get rootbound in small pots, or do you think it's not a problem? For example Auto AK47 is 70% Sativa and it can grow up to 140cm. If there's a chance for rootbound in 2-3 gallon pots, then i would take your advice and do 5gal pots.

Some of these seeds i got 6-12 months ago and they stayed in a humid room, so if they even germinate i want to use them sooner than later, i doubt they will survive for much longer. And i'll probably do photoperiods next, so for me it's ok if i use these autos for my first grow.

With inexperience I would suggest less plants. In a 2x4 I definitely wouldn't do more than four. I wouldn't put much stock in breeder estimates as far as height and especially not flower time. If they get too tall you can always tie them down or supercrop them.

Do you have a dedicated dry area? Usually different strains will finish at different times. You'll either be harvesting some early or hopefully a little late. But I would focus on just trying to keep the plants healthy on your first run. GL.

 

[GoatSoup]

If this is your first grow, I'd suggest using the same genetics in four plants. Mixing Sativa's and Indicas will give you very different growth patterns, heights, and timings. Are you going to SCROG? that might effect the heights, but genetics will control the timing. Keeping it simple and uniform will give you the best experience.
In my first HID grow I had a Grape Ape the grew into a Christmas Tree about 18" high with a Haze that was 48" and took a lot longer to finish. Very difficult to deal with.

 

[Astral22]

Yes, i'll have another smaller tent for drying. But it could happen that i'll have to mix the drying buds harvested at different times. But i'll have a dehumidifier/humidifer and hopefully i can keep it around 50% RH all the time.

Not SCROG, i was going to use U-shaped stakes that i've seen on youtube channel Highigan, and maybe use tie-downs where needed
And you're right, i should focus on less plants and few genetics, while keeping them healthy. I'm just really excited and want to try all these strains, or as many as i can I'll think about it more then.. Which strain would you do in my place?

 

[Eastownclan]

Hi people, i'm planning my grow and i was wondering what pot size would you recommend for tall autoflowers 40-60 inches / 100-150 cm?
I would like to use the smallest possible pot size without getting rootbound. I know it's usually recommended to use a 3 gallon pot, but is it ok if i use a smaller pot for Sativa dominant autoflowers or 50/50 hybrids?

Also, could you please help me choose which strains to grow, from the seeds i already have? And which pot size?
These are the seeds i have:

SWEET SEEDS
- +Speed Auto
- Sweet Gelato Auto
- Sweet Cheese Auto

ROYAL QUEEN SEEDS
- Quick One
- Haze Berry Auto
- Royal Haze Automatic

BULK SEED BANK
- Auto AK-47
- Auto Chronic

STITCH - SHORT STUFF
- Mi5
- Russian Rocket Fuel

My goal is to grow multiple strains at once, as many as they can fit in 2x4x6 (60x120x180cm) under Mars Hydro TSL2000 (300W), without having any issues with roots and overcrowding. I would prefer not to top the autoflowers since i'm inexperienced and i heard it's a 50-50% chance, so i would just do basic LST and defoliating. I'm hoping for a minimum yield of 100g (4oz) in total from all plants, but of course anything more is a bonus.
As for the height difference, i'm planning to use some sort of pedestals to raise the shorter plants. Or i would just let the short plants grow naturally without training, while doing LST on taller plants. I don't mind different watering schedules since i'll be attending the plants every day for my first grow. The only downside would be different nutrient needs and pest resistance because i'm a noob, but i figured i could learn as i go, thoroughly researching every deficiency. I'm using the complete BioBizz line and i've been told it's hard to burn plants with them?
Also i don't mind different harvest times because i'll have a separate drying tent.

So if i would choose my top 4 i would go with Sweet Gelato, Sweet Cheese, Quick One and +Speed Auto (2-3 gallon pots)
What do you think about this, am i biting more than i can chew? And could i somehow manage 6 plants by adding Royal Haze Auto and Auto AK47 to the list?
Thanks in advance.

I have the same 2x4x6 tent. It’s really impossible to put more than 4 - 3 gallon pots in there if you plan on having drip trays under them. I’m currently running 3 - 5 gallons and it works just as well.

 

[GoatSoup]

I'd check the heights and # of weeks and choose those most similar. I'd pick the fastest for grow #1. Less chance of getting too anxious and cutting too early.