There is one time that putting two cannabis plants in one pot might make sense:
If you want to know why you only plant one seed per pot, then keep reading.
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Multiple Seeds in One Pot
Another cheap alternative is 5-gallon paint buckets—that have never had paint in them of course. So, unless you plan on breeding two plants, stick with just one seed per pot.
It’s not the same as planting cannabis in an in-ground garden where they can stretch their roots.
Do you know of any more situations that would require more than one cannabis seed per pot?
Unless you’re buying feminized seeds from a reputable seed bank, you’re playing a game of hit or miss.
So what if you plan to grow five plants and one or more seeds don’t germinate? Then you won’t achieve the intended yield, and you have to purchase seeds again. It’s therefore wise to use several seeds per plant.
With feminized cannabis seeds you don’t have the risk of a flowering male plant. Because female seeds produce 99.9% of a female weed plant. This is why most growers choose feminized seeds or autoflowering seeds
Factors that determine the number of seeds per plant
To grow weed, you need high quality marijuana seeds. But how many seeds do you need to grow weed? And then there’s the question: how many marijuana plants do you want to grow?
From experience, we know that 93% of the cannabis seeds grow into a plant. This is of course a very high success rate, but not 100%. So you will have to use extra seeds in order to have the certainty of eventually becoming a weed plant.
We therefore advise you to take into account an average germination percentage of 90% when calculating the number of seeds you need for your cultivation. This gives just that little extra certainty.