Cut off 2 litres as pots???

josh.420

Member
If i was going to use cut off 2L pop bottles as pots how long should i veg my plants? i dont want to grow a big plant and have it go root bound..
 

RollupRick

Active Member
Roots need darkness so you'd have to wrap the bottle with light-proof material, and you'd know when the roots start appearing at the drainholes at the bottom.

Best solution is to prevent being root bound by giving it a proper pot in the first place, can prob pick up a few pots for the price of a bottle of coke.
 

NMgreen

Member
I have seen a set up like that with bottles the plants didnt grow very big and all there plants got stressed i dont know if its from the bottles or not. but i would say just get small pots or buckets
 

josh.420

Member
Guess I'll drop by grow crazy and get some 2 gal elite pots lol veg time in a 2 gal pot anyone? I'm pretty broke atm and im constantly getting more shit i when i can.. i have 4 kush seedlings.. a fem white widow, a fem blue mystic, a fem big grapefruit, a fem critical kush and 2 fem clones from a random seed i found in a roach.. (it was a nice smoke lol)
 

billybob420

Well-Known Member
I'd go 12/12 from seed if you plan on finishing in a 2ltr. If you are using clones I would veg for a 1-2 week max (probably 1, just enough for the roots to get exploring a bit).
 

sm00thslp

Member
2 liter bottles work great for humidity domes. I actually germ in 2 liters too. I quickly transplant as soon as the sprout has established, cause more times than not, sludge build up in 2 liters occurs. Maybe cause the bottom isn't flat, I don't know. I've tried different types of materials and rocks in the bottom. Seems to happen anyway.

Only other downside is unless the bottom is blacked out, your root will shoot straight down with a fucking quickness.

But I never have a seed not germ within 48hrs using 2 liters. I didn't have black spray paint for my first few a while back when I started growing, so I used black trash bags cut to size and taped. Black spray paint makes the job easier and quicker (unless you count drying time). Keep your bottle around 3" in height. Any more and like I said earlier, your root will become too long unless you transplant directly into your flowering pot. Use your cut off top for humidity dome from plant to seedling. Never put the cap on. Excess heat and stale air needs to get out some way. You can guesstimate your humidity by how dry the dome (top) looks. Mist it when it's dry. If you watered the medium and let it sit to get moist before planting your seed by misting the top of the dome and leaving it on at all times will keep your medium moist as well. If temp gets above 85 F however, you will then have to take the dome off so that you don't get the medium too hot (too much heat in high temps is great for mold growth, which you don't want).

Try to cut holes around the bottom on parts that are slightly elevated off the ground as well to allow air flow at the bottom. Helps force bad air and excess heat through the dome.

If you need some visuals, I still use this method on my non-experimental seeds and grows. Send me a PM, and I'd be more than glad to send you some pics.

On another note, they work great for germing tomato plants as well :)
 

polyarcturus

Well-Known Member
roots fill continer too fast, its a pain in the ass to make holes in the bottom of each one(i stopped after a while when i did use 2L) no veg at all unless you plan on transplanting out.

they are an all right pot just not deep enough for the width you have to work with.

2l bottle would be better if they are covered but i only used the clored plastic one like MD so only green light got to the roots never had a problem, even with the clear ones i never had a problem with light hitting the roots although there was enough 2l pots to cover each other sides.
 

sm00thslp

Member
Making the holes isn't hard. Take a pair of steel scissors, a lighter, heat the scissors for about 30secs rotating it, and make your holes. Done in 45 secs.

But, keep in mind that 2.5in pots are only $0.15 at your local gardening store.
 
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