Pot Size for 3ft tall plants?

I hear one Gallon per foot of height, and I just talked with someone who grew Jilly bean recently, and they said 2-3ft tall is all I should expect without topping. I have them currently in 3gal pots, and I was wondering if there was a major benefit in quality/quantity from upgrading them to 5gal containers to give the roots more room.

With this size plant, how many should I put in a 2x4 area? Crowding is ok to an extent since I will have 600ish watts of T5 Side lighting.


Lastly where can I find detailed information about particular strains growing preferences(This is proving difficult!!)? After I pick a mother from this batch, I have Utopia Haze fem seeds and 1 White Russian fem, that I want to try.

Thanks in advance!!!

3 gallon should be good, I use 2 gallon pots

and unfortunatly don't know of anywhere to find useful strain info

riddleme said:

3 gallon should be good, I use 2 gallon pots

and unfortunatly don't know of anywhere to find useful strain info

Click to expand...

i've always heard 1 gal per foot

robert 14617 said:

i've always heard 1 gal per foot

Click to expand...

true that, as a guideline for sure!

The Riddler strikes again!

Thanks

I also heard the 1gallon per foot rule but than I look at "normal" plants and shrubs you see at your local green house's and such and they are massive trees in these little one gallon pots.

I just bought a japense (SP?) maple that was roughly 4 feet tall (400 bucks!) and it was only in a 1.5 gallon pot. I think there was about 1% dirt and the rest just a massive root ball but it still grew healthy and big, buttt does this slow down growth alot? that is the only thing I can think of.

So Again I think for the 2-3footer your growing IF you have the room than sure go for the 5gallon but if you don't than using a 2 or 3 gallon pot will be fine.

there is alot of open debate about this topic.

Everyone is correct that the rule of thumb is a gallon per foot.

Here in the UK other people say 3litres per foot.

I personally use the 3 litres per foot.

A friend of mine used 45Litre pots for 3ft tall plants and he took over 4 ounces per plant after a total grow time of 106days.

J

I'm with riddle, that 2 gallon pots are plenty big enough. I've had plants that were almost 5' tall in 2 gallon pots, and they did just as well as the plants right next to them, in 5 gallon pots. If they're already in 3 gallon pots, there's no need for another transplant.

1 gallon is fine for a 3ft plant. any more than that is a waste of medium and nutrients.

the general rule of thumb is 1gallon per month of veg growth.

However cannabis has evolved or adapted to indoor growing immensely over the past 20 years or so. Grow a landrace sativa and you would need a 2-3gallon... only with a landrace sativa a 1ft plant at the start of flower would finish up around 6-7ft. Landrace have different root systems, not adapted to indoor growing.

Here is an example of what I mean:

Landrace at 8 weeks flower...


Ordinary Cannabis Plant at 8 weeks flower...


Those are from 4" pots by the way...

Cannabis has adapted to indoor growing and it is possible to grow fairly large plants in very small pots.

It also depends too on whether you are growing from seed or clone as a seed plant will have a tap root and a clone will begin with a developed root system right away.

It is from seed, but I also have Utopia haze coming up next. I do believe it was adapted indoors for 3 years?

Basically it depends on the strain then? The more it is grown indoors the less root system it develops?

^Excellent info and pics, skunkushybrid01. I never heard that there were different type of root systems. Awesome, that helps further explain how seedbanks label some strains as "outdoor only. Until now, I was assuming that 'heigth' was the main factor they use to determine that.

That's worth a +rep

Bargar said:

It is from seed, but I also have Utopia haze coming up next. I do believe it was adapted indoors for 3 years?

Basically it depends on the strain then? The more it is grown indoors the less root system it develops?

Click to expand...

Not the less root system... although i suppose you could say that... i prefer to think of it as a more intelligent root system. The root system adapts to being restricted. The more used to being restricted the plant is then the better adapted the root system becomes to the restriction.