Can I Plant Two Weed Seeds Together

Dear Dan, I have four seedlings that are into their first week of growth. They’re bunched together. Are they okay like that? This is my first grow and I’d Wondering if I can plant 2 auto's in 1 five gallon container? Would it really 'kill' both plants? It's my only option or I throw away the 2 seeds that I…

Grow Q&A: Can I Grow Multiple Pot Plants in One Container?

Dear Willie,
Growing marijuana plants close together in one container isn’t ideal for several reasons. As the plants get bigger, the roots will compete for nutrients, with the larger plants taking advantage of their growth to shade out their smaller competitors. Also, the roots from different plants will quickly start to tangle together, making future transplantations difficult and stressful on the plants.

My recommendation is to gently remove the plants from the avocado pot and transplant them into their own individual containers for the remainder of their growth cycle. This way, each plant will have its own space for roots to spread out and won’t have to fight for light or nutrients.

Can i put 2 seeds in 1 pot?

Wondering if I can plant 2 auto’s in 1 five gallon container? Would it really ‘kill’ both plants? It’s my only option or I throw away the 2 seeds that I put to germinate. Can’t buy soil anymore at this time of year in my city.

GrowUrOwnDank
Well-Known Member

Yes you can and it won’t kill the plants. Assuming it’s a fast variety it will be fine but, it will get crowded as they grow into each other’s canopy. Personally I would run single autos in a 2 gallon. 5 is a bit more than you need for the fast ones. Up to 13 weeks. But have done 2 in a 3 gallon. Not optimum tho.

Blitz35
Well-Known Member

the two I did previous were in 4 gallons each. I planned to do 4 now and 2 are planted in 4 gallons each again..but since I couldn’t get soil, the two germinating have nowhere to go now. I already planted one of them in the same 4 gallon as the other one is in. It hasn’t popped out of the soil..dug carefully, cant find it, tap root wasn’t visible when I planted 2 nights ago but seed was open slightly. As for the other container, that seed has popped through the soil..I was thinking replanting it in a 5 gallon with the last germinating seed in same container. Is it better to put a divider maybe halfway down the container so roots wouldn’t grow into each other as much?

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Blitz35
Well-Known Member

These were the roots on last 2 auto’s alone in the 4 gallon. I did underfeed them as well in flowering. my first grow.

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Cpappa27
Well-Known Member

plant them both on the opposite outside edges of each other in the bucket and as they grow kinda put a stick in between them so they train to grow away form each other or tie em they wont get in each others way

Alienwidow
Well-Known Member

Do you only have room for a five gallon container? The best things you could do are get a larger pot. Square if possible, then plant in either corners but not right against the side. Ive seen whole warehouses done sog this way in square buckets. Nice yield.
Also try and train the plants so theyre not getting into each others business. You may have problems if ones a short one foot super cola, and one sqirts up five feet. Good luck.

cat of curiosity
Well-Known Member

it is never optimal to have two root systems confined in a container. roots will fight for dominance, like kudzu strangling shade trees.

and they may even communicate, almost always ends up being.

one boy, and one girl.

Blitz35
Well-Known Member

Do you only have room for a five gallon container? The best things you could do are get a larger pot. Square if possible, then plant in either corners but not right against the side. Ive seen whole warehouses done sog this way in square buckets. Nice yield.
Also try and train the plants so theyre not getting into each others business. You may have problems if ones a short one foot super cola, and one sqirts up five feet. Good luck.

I had room for 4 four gallon containers. I only have 2 filled. I have about 6 litres of coco/soil left..so I can empty one 4 gallon into the 5 so I can put the 2 seeds in there, each maybe 2 inches from edge on opposite sides? The seed in there now is ‘easy bud’ from royal queen seeds..its not supposed to be big at all.

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Bugeye
Well-Known Member
NoWaistedSpace
Well-Known Member

If you have a “Family Dollar” Store or equivalent close by, buy a 20gal square plastic tote for 5bucks. This will give you more surface area for 2 mature plants with 5gal bucket of substrate if you just have to plant in same container plus you have a 50/50 chance 1 will be male unless Feminized.

Blitz35
Well-Known Member

I can leave the 1 seed in each..i was just wondering with the options I have..what’s better..will it be better to put the 2 seeds in the same 4 gallon or throw them away and just leave the 1 each that are in there now? As for throwing auto’s away.
I grew the first 2 auto’s..took 60 days, made mistakes with feeding (improper fert), the two yielded maybe an ounce combined (used I think a dozen 23 watt cfl’s). Last one I grew a regular one..vegged 45 days..flowered 10 weeks with 14 same wattage cfl’s (Plant was healthy throughout), and curing now, looks like about 1.5 oz. So I thought with better care..the 4 auto’s should give me 3 oz’s in just over 2 months..so I chose that route.

Blitz35
Well-Known Member

If you have a “Family Dollar” Store or equivalent close by, buy a 20gal square plastic tote for 5bucks. This will give you more surface area for 2 mature plants with 5gal bucket of substrate if you just have to plant in same container plus you have a 50/50 chance 1 will be male unless Feminized.

seeds are feminized auto. Also, again..i cant get anything bigger..i only have max 1.5 gallons of medium left. its why my only option is switching the 4 gallon im using now and replant into a 5 gallon.

NoWaistedSpace
Well-Known Member

Well then, yes you can plant 2 seeds in 1 container. Main thing is get them up and then decide what to do. Maybe you can locate more coco etc. before the extra seeds get a foothold.

Blitz35
Well-Known Member

Well then, yes you can plant 2 seeds in 1 container. Main thing is get them up and then decide what to do. Maybe you can locate more coco etc. before the extra seeds get a foothold.

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I can get more coco, but only on Monday. Seed’s taproot is already close to a knuckle long in the napkin..not sure it can wait till Monday. Maybe better just to plant for now in what I have and transplant in 2 days? Just wasn’t sure which is better. to have 2 in one pot for the duration of a grow, or shock an auto with an early transplant instead.

GrowUrOwnDank
Well-Known Member

Do you only have room for a five gallon container? The best things you could do are get a larger pot. Square if possible, then plant in either corners but not right against the side. Ive seen whole warehouses done sog this way in square buckets. Nice yield.
Also try and train the plants so theyre not getting into each others business. You may have problems if ones a short one foot super cola, and one sqirts up five feet. Good luck.

Ive been watching these square pots for a while but am not growing anything at the moment. I would say better is to have smaller pots for each plant. Me, I’m all about 12/12 from seed tho so small and fast to harvest is my goal. It works. In my opinion most autos don’t need 5 gallons. Again small and fast is my goal so, I pick those types of genes to work with.

I had 2 sativa doms in a 3 gallon once and they actually did get to 4.5-5 feet tall but very lanky like a sativa. It worked out ok. Not optimum tho.

Blitz35
Well-Known Member

after a bit of chaos..they’re all separated now..the ‘lost’ seed grew out today right next to the one I planted last night lol. Will be looking for soil tmr to fill the 2 other 4 gallons up. Don’t want to do it in strictly coco as that will cause issues during watering. I’ll have to water 2 of them more often..with different ph, different feed slightly..i’ll try to make the same mixture as the other 2 have. Surely I can get 15 litres of pro-mix somewhere in the city.