Why not just cut it and leave the roots in, it’s fertilizer for the keepers and the next grow!
5 Likes
It’s certainly okay to do just cut the other plant. My reasons don’t create dramatic and immediately observable differences. I haven’t even done a controlled study, they just line up with the rest of what I’ve seen in studies and my growing experiences. 
A few reasons - one is that they take a while to die, and the other plant may be impacted similarly to if the plant was still there if it’s growing into that zone right away.
Another is that plants send chemical signals to other plants. I don’t want that stump and root system telling my other autoflower plants that something bad is happening and they ought to hurry out of veg.
Last one is that I’ve been having problems with root rot, I think there’s too much in my soil that’s been enjoying a tasty diet of cannabis roots 
so I’m going to feed them directly to the worm bin instead.
4 Likes
I’d be inclined to blame overwatering / overfertilizing. 
Apart from being lazy it’s another reason I don’t use compost teas and such, easy to overdo it.
But when it comes to auto’s you may have a point when growing in smaller pots.
Photo’s, in my limited experience don’t seem to mind old roots in 3,5 g (9L) pots.
4 Likes
Lol! You might be right about the Overfertilizing overfertilizing.
To be fair they didn’t seem to mind the old roots for the first few years, especially when I was adding soil regularly. But I still have soil in my pots from when I first started growing 5 years ago. Maybe now it’s a small percentage but the microbial descendants would be there. 
My home bred plants grow happily.
2 Likes
I’ve wondered about flowering two plants in one pot?
I was Informed that the 2 plants will compete with each other, I thought this utter nonsense due to the fact they’re grown by acre outside and live harmoniously, however my simple logic didn’t seem to cut it?
3 Likes
Genetics play a major role in this situation.
When you sow two of the same strain, same parents, then they won’t compete with each other and grow at about the same rate and finish at about the same size.
When you sow two different strains in the same pot then it’s much more likely that one will outgrow and stunt the other.
3 Likes
Oh I do this regularly. Though I don’t make any attempts to separate them and let them grow together. Assuming the canopy is equal and you can manage the middle growth, I see it as a good way to fit more plants in less space while ensuring no soil is left empty. Just less waste if you don’t mind the extra care taken looking after the feed and whatnot. Sure plants will get a touch bigger by themselves in their own pot but it’s dependent on your goals, tolerances, and genetics, of course. I do this for the first run of almost everything. I take cuts from the twos, label them and then if someone stands out, I run their clone however I’d like.
8 Likes
There’s a high probability I’m going to have too many plants this time, I was just going to suck it up and flower the females regardless, that said 2 plants per pot sounds more appealing.
The yeild doesn’t matter much I’m mostly looking to find ones worth growing again.
5 Likes
2 potted plants is useless. one plant will grow more than the other, it will take more nutrients than the other, sacrificing the other. then if you wanted to transfer it you would no longer be able to do so. I’ve noticed that you Americans are cheap on vases.
Its about final plant count not pots. Sexting reg seeds.
Sometimes there’s money to spend on containers sometimes you have big pots and no money and want to maximize space.
I’m not unhappy with my current results. I have 7 plants in 4 pots and they are all doing ok. I will likely get smaller containers for my next grow, but when I put these in soil I was on medical leave from work and didn’t have the funds to do it the “proper” way.
6 Likes
Coming in with the heat 
useless is a big word. Maybe stop being cheap with your mind and try to think about it. The idea that two strains nutrient demands are that different is unsubstantiated.
3 Likes
Don’t listen to these naysayers.
Sometimes there are good reasons to grow multiple plants in the same pot. I’ve done it many times and never noticed one plant cannibalizing the other.
4 Likes
3 per pot then! Let’s goooooo!! Lol
5 Likes
I would never put two plants in a pot, just in case you want to move a plant, you won’t be able to do it anymore. you would like to make a cross with one of those plants, there would be many reasons. the best machine is always a potted plant. then scientifically it is known that a plant takes more water, vitamins, fertilizer, and everything from the other plant
1 Like
Or you could know what you’re doing with them before they ever get started. Such is the case when I put multiple plants in one pot.
I won’t ever make you put two plants in one pot, so we are all good there 
6 Likes
A good example of why this worked out for me on this specific run… @ElChapo26
The two bbps that were in that pot up there together were both from seed, both females, right? Well, at day 21f one started herming out really badly. I was able to give that plant the chop and not waste the time or soil or space. I was able to turn the pot since the plant is more to one side and now it fits perfectly in a corner by itself with a soil mass that’s filled with microbe food in the form of roots. And I didn’t have to replace it with anything. And it didn’t disrupt the other plant already at 3 weeks of flower. It’s hedging the risks of planting from seed.
And just for you, here’s another pot with two plants. Two Kasper’s Koffee from @DEFSeeds that are both ladies and doing their thing. Food for thought, maybe. If you could even believe it, I’ve got 3 rotten pineapple sharing a 3 gallon in the veg tent.
I’ve been wrong 10 million times before though so if I end up wrong that’s okay too.
6 Likes
This is perfect for my situation.
I’m only looking for the best one’s to grow properly next time around.
I’m sure it’ll be fine, the pics posted above by other members are telling me not to have any concerns about trying it.
6 Likes
Yea me too I’m thinking 3 per pot till I sex them. Just solves sooo many variables.
3 Likes
