How To Tell If Marijuana Seeds Are Bad


Buy Cannabis Seeds Online

Nowadays, anyone can buy marijuana seeds online, but how can you tell if they are good? Here are some tips to help you avoid making a mistake. Read more! Are These Cannabis Seeds Good? Growing with bad marijuana seeds is particularly harsh on growers of all levels. This is mostly because it’s tough to pinpoint when the seed itself is the actual How to grow weed successfully? Choose the right seeds! Here's how to recognize bad marijuana seeds from the good ones!

How to tell if marijuana seeds are any good?

Today, anyone can buy marijuana seeds online, but how can you tell if they are good? Here are a few tips to help you avoid making a mistake

Interest in cannabis seeds has grown considerably in recent years.

Many people buy cannabis seeds online and elsewhere for a wide variety of purposes. Despite this, most buyers still don’t know how to tell if marijuana seeds are good or not.

It is why here on our SensorySeeds blog, dedicated to cannabis seed enthusiasts, we thought we’d take a closer look and provide some must-have tips on how to distinguish quality seeds from inferior merchandise.

Assess the quality of the seller…

Here at SensorySeeds, we give a 100% guarantee for the products in our shop, and our customers can be sure that they are getting good quality marijuana seeds at fair and competitive prices.





We will now go into what the quality of a seed depends on and how to check it. Still, first, we would like to point out that although buying and storing cannabis seeds in the UK is perfectly legal … but growing them is not!

So, this article is in no way an invitation to do this or any other illegal activities due to buying our products.

What to do to find out if your seeds are good

You may have doubts about seeds you bought some time ago and don’t know if they are still alive.

Whether they are marijuana seeds or seeds in general, several available methods can determine whether the seeds are still good.

Generally speaking, we can say that most seeds manage to last several years, but this also depends on how they are stored. If a seed is not stored correctly, it is very likely that it will go bad very quickly and will no longer be usable in any way.

What you must absolutely avoid when preserving your seeds is to overexpose them to light and moisture.

In this case, the seeds would risk sprouting, rotting or drying out, as the case may be, and you would have needlessly wasted your money.

Therefore, it would help if you stored them in a cool, dry place, preferably in their original packaging or in an airtight container, preferably one that allows excess air to escape.

If you still have doubts despite having followed these precautions, you can do some simple tests.

Let’s see what they are:

  • Water test: This is an elementary test. Just put your seeds in a container full of water and let them stand for about 15 minutes. If the seeds sink, they are still viable. If they float, they are probably dead because they contain air. However, this test is not 100% safe, so not everyone uses it.
  • Germination test: Take the seeds, or at least a dozen of them, and place them in a row on a dampened paper towel. Fold the paper towel to cover them, put it in a zip-up plastic bag, and seal it carefully. This way, the napkin will remain moist and protected. Then put the bag in a warm but not too warm place, for example, on top of a cupboard or the fridge. The seeds should be checked often, at least once a day, to see if they can germinate and check that the napkin is always damp. If it is too dry, you can water it a little more, but avoid overdoing it. You should also keep the bag away from direct sunlight.

In about two weeks, the seeds should start to germinate, but it is best to find out the timing of each seed so that you do not give up too soon.

Once the right time has elapsed, you should check how many seeds have managed to germinate.

If less than five have germinated, then most of the seeds have probably gone wrong, but if more than 5 have germinated, then the seeds are still good.

To conclude

As we have seen, the methods for checking whether your seeds are of good quality and viable are elementary, and anyone can put them into practice, always keeping within the limits of legality.

We hope you find our advice helpful and invite you to visit our online seed sales website:, where you will find a large assortment of products, including BSF Seeds.

Are These Cannabis Seeds Good?

Growing with bad marijuana seeds is particularly harsh on growers of all levels.

This is mostly because it’s tough to pinpoint when the seed itself is the actual problem. Most growers will blame themselves for a problem that shows up in their grow long before they assume it’s the seeds.

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The term ‘bad seeds’ usually refers to any type of seed that has a significantly higher likelihood of causing problems in a grow. I’ll cover the most common reasons for bad seeds in this tutorial!

These cannabis seeds were germinated between two wet pieces of paper towel!

Beat-up Seeds

These are pot seeds you might get from a friend, or maybe you have them stashed somewhere and forgot how you got them. In either case, if the shell of the seed looks beat-up, it may not germinate as well or quickly as seeds that were stored in good conditions.

Old Seeds

Seeds are a little nugget of genetic material than can hopefully grow into a plant. And like all other genetic material, it doesn’t last forever! Although seeds can be viable for quite years and years after they’re first produced, the chances of them successfully germinating goes down over time (and old seeds also tend to take a lot longer to germinate than fresh ones). The resulting seedlings are also more likely to be slow growing. But sometimes they sprout like they were born yesterday!

Check out the picture below. We sprouted all the plants at the same time. The tub on the right has seeds that were planted within a week of receiving them in the mail. The tub on the left has a very popular strain with award-winning genetics… but the seeds were more than 6 years old from when we first bought them. Even though they were all put into the tank at the same time and the new seeds grew like crazy, the seeds on the left got outpaced by algae – only one sprouted and though its roots keep growing and growing the actual never got any bigger than two round leaves even after a month!

Pale or Flimsy Seeds

When I first started growing I was told that good cannabis seeds needed to be very hard with dark tiger striping. If you could crush it between your fingers, it was a bad seed, or so I was told. This has not been my experience at all!

Did you know that the “stripes” on cannabis seeds are actually part of a protective coating? The “pale” seeds in this photo are actually just regular seeds with the coating rubbed off!

Over the years, some of my very best plants came from flimsy, light brown seeds that very likely would have been easy to crush between my fingers.

So I’m a big believer in the fact that if you put the seed in the ground and a fast-growing healthy seedling comes out of it, it was a viable seed! Don’t toss a seed you are really interested in just because it’s a little pale; give it a chance (I’m talking more about tan seeds, it’s very unlikely a yellow seed will sprout)!

Note: Although the hardiness of the seed was likely important in the wild, cannabis growers have been breeding plants for generations to make good buds, not seeds! We growers strive to provide an ideal germination environment that lets almost any seed germinate successfully. As a result, we haven’t been breeding for seed hardness. Just like a teacup poodle hasn’t been bred to be strong, cannabis seeds haven’t been bred to be strong. They have other qualities we love

Bag Seeds

Bag seeds you randomly find in your buds aren’t supposed to be there, so that means that the genetics are a toss-up. Even if the seeds started with good parents, there’s no telling how high or low the quality will be. Unfortunately, the only way to find out is to grow it… Some growers win the genetic lottery, but many others lose out.

If you talk to breeders, you’ll learn that when you breed two “star” strains together you don’t always get what you’d expect. It seems like every one of the seedlings (or at least most of them) should be capture the best qualities of both their parents.

However, that’s not how genetics works most of the time. Without intensive breeding and backcrossing, when you mix two random plants you often end up with only a fraction of the seedlings capturing the best of both parents.

Bag seeds are a wildcard! You never know what you’ll end up with!

So depending on how the seed was originally made, bagseed often has a lot of variety. Even if the buds you got were an incredible quality, it doesn’t necessarily mean that the seeds will produce buds like that. If you’ve ever gotten involved with breeding or growing other types of specialized plants like roses, hops or even apples, you’ll know that seeds rarely breed “true” to the parents, and cannabis isn’t any different.

That being said, sometimes bagseed is all you have, and lots of growers get lucky!

Hermaphrodite or Male Plants

If a cannabis seed was produced with a male doing the pollinating, it means that about half of the resulting seeds will end up being male (which you don’t want, because only female flowers turn into bud). In that case, you want to determine the gender of your young plants as soon as you can so you can toss all the male ones before they start making pollen sacs.

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If growing with seeds that were produced without a male plant around, the seeds sometimes end up being hermaphrodites, which means they grow both male pollen sacs and female flowers (again, something you don’t want).

One of the best ways to ensure all your plants end up being female is to start with feminized cannabis seeds from a trustworthy breeder.

Sometimes It’s Random!

Even if you’re starting with the best, most fresh seed stock, occasionally you’ll get an individual seed or plant that just doesn’t grow as well or quickly as the others, or maybe you’ll get a super awesome seedlings that just starts kicking butts and taking names from its first moment.

Natural variation is totally normal! It’s always a good idea to sprout at least a few more seeds than you need in case you happen to run into a runt, or some other expected problem! If all your plants are healthy and growing fast except one, you can blame the seed!

How to Recognize Bad Marijuana Seeds

In achieving favorable growth and vigorous development of the marijuana plant, it is best to obtain and start to cultivate with a great marijuana seed. Although water, essential nutrients, and proper lighting are aspects to consider for sustainable growth of marijuana, the initial checking of marijuana seeds’ quality will assure every grower, to begin with, the best onset cultivation.

Also, it allows growers to fully ensure that the genetics and characteristics of your desired strain are achieved properly. Apart from the assurance that the terpenoids and cannabinoids are obtained perfectly, it also allows growers to prevent having dud or bad seeds.

To ensure that you are not purchasing some bad marijuana seeds, this article will help you identify between a good and bad marijuana seed. It is essential to start cultivating a good seed to assure that there are no unexpected cultivating problems that will soon arise when bad seeds are grown.

Characteristics of Bad Marijuana Seeds

There are certain characteristics that bad marijuana seeds possess, which can be separated from the good ones. Below are the basic characteristics of bad seeds, which will serve as your guide.

Seeds That Are Beat-up

This type of marijuana seeds is typically purchased from a friend or generally from somewhere unreliable without a name or reputation in selling marijuana seeds. Commonly, these seeds have a beat-up appearance, and when attempting to germinate, it does not undergo germination compared to seeds stored in excellent environmental conditions.

Seeds That Are Old

Similar to other seeds of plants, marijuana seeds do not last for too long. However, marijuana seeds can last for years; the quality will degrade over time. It will be harder for them to germinate and grow if they get older. Additionally, old seeds are much slower to grow compared to fresher seeds.

There are also other old seeds that are easily broken even when just gently squeezed. To prevent this from happening, marijuana seeds should be stored in a cool, dry, and dark place like refrigerators. Seeds stored properly will still germinate accordingly even after years of storage.

Seeds That Are Bag

This type of seed is a toss-up in genetics. The buds produced by your marijuana plant generate a bag seed that supposedly should not be there, given that you began the cultivation with a good marijuana seed. Therefore, the seeds produced by good marijuana seeds will not always give the assurance of their quality. The genetic makeup of seeds is a lottery process. This simply means that, despite breeding two renowned strains of seeds, you are less likely or more likely to produce the offspring that you expect.

The genetic makeup of seeds does not work smoothly as you intend them to do. That is why many breeders opt for several backcrossing to achieve the most stable genetic makeup of a marijuana strain that captures both its parents. Generally, bag seeds are seeds of random quality, despite coming from high-quality marijuana seeds.

Seeds That Are Immature

This type of seed is harvested at an early age. Typically it appears to have a combination of white and green colors, and usually, the size is small since it has not attained its full maturity stage. This type of seeds is bad because when they attempt to germinate, the seeds will have a hard time. They are not typically for cultivation.

Seeds That Are Hermaphrodite

Hermaphrodite seeds are simply seeds that are male. This type of seeds is considered bad because when grown, it does not produce buds; only female seeds can do it. Therefore, before purchasing seeds to grow, it is wise to identify the gender initially before they are even planted.

Characteristics of Good Marijuana Seeds

Marijuana seeds with quality background and good characteristics should be separated from the bad ones. Below are the following qualities that you should be looking for when purchasing or deciding whether it is a bad or good marijuana seed.

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Seeds That Are Dark in Color

Good marijuana seeds typically have dark colors. It could be black, gray, or brown. The color is a sign that the seed has high quality. On the other hand light-colored seeds with green tints are more likely immature seeds.

However, it does not mean that the darker the color, the better seeds it would be. Too much darkness, which sometimes resembles a dark purple tone, may suggest that seeds underwent dying. When seeds are touched and have powdery dust, you can always be aware that these are powdery mildew.

Seeds That Are Waxy in Coating

To identify a good marijuana seed, it should have a visible coating like wax around the seeds. Due to this waxy coat, the seeds will seem to have a sheen appearance.

Seeds That Have Stripes

Apart from colors and sheen, good marijuana seeds have stripe marks around them. These could also be spots in black or brown color. Typically, seeds with stripes that resemble tiger stripes or lightning are reasonable indications of good marijuana seeds.

According to experts, the stripes of the marijuana seeds serve as coating protection. If the seeds appear to have a furry coating, this implies that it has molds that developed from acquiring a high level of moisture.

Seeds That Have Hard Shell

According to experts, you can determine the quality of the marijuana seeds when they are slightly squeezed and withstand it without crushing. It means that the seeds are of high quality and suitable for cultivation. While seeds that are easily crushed by the slight squeeze are more likely weak marijuana seeds or even dead, which have no potential in growing.

Seeds That Are Crackless

You can use a magnifying glass to see whether the seeds have no signs of cracks. Marijuana seeds with holes and cracks, even when appearance is minimal, should be thrown away immediately as it has a higher likelihood of not sprouting.

Tests to Determine the Quality of Marijuana Seeds

Those mentioned above are simply fundamental guidelines in determining a good seed from a bad one; however, there are also other ways to properly identify the seeds through the tests below.

Floating Test

This test can be done on any type of seeds, apart from marijuana seeds. To do this, fill in a cup with warm water, and pour in the marijuana seeds. Allow soaking the seeds for a few hours before trying to check it. Afterward, observe the seeds in the water. If the marijuana seeds float, these seeds are either dead and have no chance of growing or immature, which are likewise a waste to cultivate.

However, when the seeds sink, they are more likely excellent to cultivate due to the heaviness of the seeds. Typically, high-quality marijuana seeds are heavy. Always take note, ensure that your seeds are germination ready before using your seeds for the tests because it will be a waste if the germination is not yet happening.

Touch Test

This test involves holding the marijuana seeds between your fingers and trying to squeeze them slightly. Do not apply too much force that could crush the seeds completely. Rather put a minimal effort into squeezing. When doing this, the marijuana seeds should be free from cracks or holes. Also, it should not have a wrinkled appearance.

If the seeds fail to overcome the following, they are bad quality marijuana seeds and will definitely not survive when they undergo germination. However, if the seeds did not seem to have problems when doing the touch test, they are good for germination and cultivation processes.

Germinating Test

This is the most accurate and apparent way to determine if your marijuana seeds are of good or bad quality; allow them to undergo germination regardless. If the seeds did not turn out great despite providing appropriate environmental conditions, therefore you can easily say that the marijuana seeds were lacking in quality.

Final Thoughts

When purchasing marijuana seeds, it will take a lot of your trust. It is less likely that you can identify the quality of seeds by just looking at them. The genetic makeup of the seeds will only be determined according to the information from the seller. This is why it is essential to purchase marijuana seeds from reputable dispensaries or seed banks.

In producing the best quality of marijuana seeds, it will take tremendous experience and skills to perfect the production of high-quality marijuana seeds. It will take a lot of time to produce favorable seeds. Purchasing marijuana seeds from widely known seed banks will definitely provide a huge amount of chances of getting the same quality you expect.

Meaning, the more reliable the store is, the better the marijuana seeds are in quality and characteristics. You are also secured and free from worries if the marijuana seeds you bought are of top quality when harvested.

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