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how many cannabis seeds per plant

How many weed seeds do you need to grow a 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?

This ultimately determines how many seeds you need. Based on your wishes, you calculate the number of marijuana seeds you need.

How many seeds do I need to grow a weed plant?

You might think that you need one cannabis seed to grow a plant. And basically that’s right. But it is possible that not every seed germinates. After all, you are dealing with a natural product.

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.

In order to calculate exactly how many cannabis seeds you need, you have to take two determining factors into account:

  • The type of cannabis seeds (regular seeds or feminized)
  • The germination rate

Type of seeds (regular or feminized)

In this blog we assume that you buy cannabis seeds for growing cannabis. For this you can choose between regular seeds or feminized cannabis seeds. Both types differ from each other and have an influence on the final result. The differences are explained below.

Regular cannabis seeds

With regular cannabis seeds, the genus of the plant has not yet been determined. When choosing regular seeds the chance that the seed will develop into a female plant is about 60%. The chance that the seed develops into a male plant is therefore 40%. And because male plants do not produce buds (read: marijuana), you need several marijuana seeds to increase the chance that you will eventually grow a female plant.

Feminized cannabis seeds

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

Auto flowering seeds are basically feminized seeds, but have the advantage that they flower automatically (read more about the difference between feminized cannabis seeds and autoflower seeds). However, feminized seeds are more expensive than regular seeds. Depending on your budget and growing skills you will choose the type of weed seed.

The germination rate

In addition to the type of cannabis seed, nature always has an influence on the germination process. After all, the cannabis seed is a natural product and this means that not every seed is viable and germinates.

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 bit extra certainty.

Reading tip: Our blog about ‘Germinating marijuana seeds’ explains how to optimize the success rate to 100%.

Number of weed seeds needed to grow

Based on the above information it’s quite easy to calculate how many seeds you need to grow weed. For your convenience, we have placed the results in the table below.

Question: How many weed seeds do you need to grow a plant? Here you find all the answers about the number of seeds you need to grow a nice weed plant!

How Many Cannabis Seeds Per Pot?

If you have ever wondered how many cannabis seeds per pot, look no further. One seed is all it takes to grow one plant so even if you see plants that look like as if they were bushes it is all just one seed. Regardless of the apparent size of the plant, all growers know that only one cannabis seeds per pot is required.

So you know how many cannabis seeds per pot, but you want to know what will happen anyway?

If you use more than one or many cannabis seeds in a pot, the cannabis plants will begin to compete against each other for nutrients, so the smallest cannabis plants (which sometimes may be the best phenotypes.) will get wiped out by the bigger cannabis plants.

If you are growing from regular cannabis seeds they could also cross-pollinate resulting in buds with cannabis seeds in them. It sounds simple enough but if the buds have seeds inside them, the potency of the strain can be reduced up to 30%. Each cannabis seed is a plant and they need their own space to grow and thrive, as well as to produce bigger and better buds. Remember that more than one cannabis seed per pot is too many.

You might find our FAQ Submission How Many Marijuana Seeds To Grow A Plant? useful!

Amsterdam Seed Supply – Wondering how many cannanis seeds per pot? – Discrete order & shipment