Can weed seeds ever go bad

How Long do Marijuana Seeds last?

When it comes to cannabis seeds, many first time growers tend to have some sitting around from an old friend or baggie. With recent legalization, new growers are deciding to dust their seeds off and start their very own grow, but how long do marijuana seeds last before they won’t germinate?

A typical feminized cannabis plant can produce an enormous amount of seeds – hundreds, depending on how well the plant takes the pollen and how meticulous the pollination process is. It also largely depends on the strain, as some strains are capable of producing much more, especially if their flowers are larger and can hold more. But how long do they last once they’ve been harvested and dried?

How Long do Marijuana Seeds Last?

There are many different factors that come into play when it comes to cannabis seed lifespan, and the most important is conservation. If you’ve obtained your seeds from a seed bank and they come in their own packaging, when it comes to storage you can simply leave them in their packaging in a dark, dry spot; seed banks usually recommend planting within the year.

However, if you’re planning on crossing your own plants and making your own seeds, you’ll need to know how to harvest, dry and store them if you’re planning on keeping them for a while before germinating them; knowing how to store cannabis seeds properly is quite an important tidbit of information if you’re a professional cannabis grower.

The seed is undoubtedly just as important as the final result; without quality seeds, you won’t get quality results. Keep in mind that cannabis seeds are practically living beings ready to be brought fully to life. Many new growers don’t know that cannabis seeds require specific care, and the way you store your seeds can significantly affect their outcome. Check out our Cannabis seeds – Buy Marijuana Seeds section to find reliable strains.

Drying Cannabis Seeds

When working from the start you’ll first need to pollinate the flowers on a female cannabis plant and then harvest the seeds once it’s fully matured. Once you have your seeds you’ll need to dry them out before they can be stored or even germinated – they should be ready to harvest once they’ve gone a dark brown color or start showing dark stripes. Most people opt to dry their seeds by simply drying the flowers and harvesting the seeds once they’ve dried out – it makes them much easier to remove from the flowers.

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How Long do Marijuana Seeds Last in Storage?

Once you have your seeds you’re going to want to store them correctly if you plan on using them down the line. In fact, when stored under perfect conditions, you can germinate 5 year old cannabis seeds successfully. Some astonishing cases have been reported of seeds lasting up to 10 years when stored optimally, although the germination times may vary wildly, taking much longer than a fresh seed. For home-growers, storing and maintaining seeds is quite important, and even more so for seed banks; a badly stored seed may not germinate, and if it does it may not grow properly. There are various parameters you’ll need to follow in order to store seeds long-term.

Seed Storage: Light

One of the first things to keep in mind is that whatever container that you store your seeds in needs to block out all light. If you’ve ever germinated cannabis seeds before, then you know that light is an important factor when it comes to the probability of the seed germinating or not. If your seeds are exposed to light for too long, they may end up too weak to germinate; even if they germinate they might have quite a hard time starting off.

Seed Storage: Temperature

The temperature at which you store your seeds is one of the most important factors. If you’re going for something short-term, you just have to make sure that they’re in an area with a stable temperature – do not store them somewhere where there are going to be temperature changes.

However, for long-term storage you’ll need to store them at around 6-8° – if you plan on storing a large amount of seeds, we recommend buying a small cooler for that specific purpose to keep them at a low, constant temperature; opening your fridge can cause temperature changes, so keeping them with the rest of your products is probably not the best idea.

Also, remember to use a blacked out container when storing in the fridge or a black bag to ensure that the lights inside don’t affect the seeds when opened.

Seed Storage: Humidity

Humidity is another incredibly important factor that can determine the success rate of your seeds. Relative humidity is essentially what causes seeds to germinate, so they’re quite delicate at this stage and you don’t want them accidentally germinating; keep relative humidity low in their container.

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This obviously depends on your climate too, as there are places that have incredibly high humidity and others that are quite dry, which can directly impact how you have to store your seeds. As a general rule of thumb, we recommend keeping them in a low-humidity container, and if you live somewhere incredibly humid you might have to use specific methods to decrease humidity.

Cannabis seeds can germinate with a RH of 40-60%, and humidity higher than that can actually drown them and kill them. However, humidity ranging from 9 – 20% may also cause a myriad of issues such as insects, fungi, and even seed sweating due to excessive heat. The ideal humidity range in which to store your seeds is between 20 to 30% RH.

How Long do Marijuana Seeds Last

Taking into account the previously mentioned parameters, the best way to store your cannabis seeds for long periods of time is by vacuum sealing them and then putting them into an opaque container or bag so that no light gets to them. Keep them at a constant temperature of 6-8°. Some growers use products such as silica sachets to keep humidity down even if the outside temperature/humidity becomes drastically altered – this is a good idea if you live in more humid or hotter climates.

Keep in mind that if your seeds experience too much light or temperature changes they may end up using up their nutrient reserves, which would render them useless.

Can Cannabis Seeds Go Out of Date?

Yes, cannabis seeds can expire and go out of date. It’s not an easy question to answer, and there are a lot of variables that will factor into how long cannabis seeds last for. If you’ve been sitting on some old cannabis seeds and you’re wondering how long they’ll be good for then this guide will answer all of your questions.

Germinating a seed only takes around two days, so the best way to find out is to try germinating it (check your countries laws as this is illegal in some places). But if that is not an option then we can give you some rough guidelines on how long you can store cannabis seeds along with some top tips to ensure longevity.

How long do cannabis seeds last before they go bad

Cannabis seeds have an average life span of one to two years, but the life span can be greatly increased when you store cannabis seeds correctly. The life span of seeds can also be greatly reduced if stored incorrectly, so it is important to learn all about storage.

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The viability of a seed will greatly reduce as they age, so it is always best to buy fresh ones rather than attempting to store them for the future.

Let’s take a look below and investigate some of the factors which will influence how long they last, such as storage conditions and how you look after them.

How much longer will cannabis seeds last with the best storage solution?

If you store your seeds correctly then they could last a good five years, some have claimed to of germinated seeds that have been stored for over 10 years; so they are always worth checking out before you dispose of them. The best storage solution for a seed is placing them in a freezer, you can learn more about that here.

At Sticky Seeds we store all of our seeds in optimum conditions to ensure longevity. This is often overlooked by customers seeking to use a random shop and not something many people think about asking the company before buying.

Will cracked seeds still germinate if planted?

If you have cracked seeds, there’s a good chance that they’re not going to germinate. Once the outer shell of the seed has been cracked or broken, the genetic information or material inside the seed is compromised. If you already had the seeds, then it might be worth an experiment to see if they germinate, but if you’re relying on them germinating, it would be best to throw them away and buy cannabis seeds fresh from a shop, such as ours!

Cannabis seeds are quite hardy and can withstand long amounts of time in storage if you take the appropriate steps to protect them.

Conclusion

So there you go! If you follow the correct storage methods, your cannabis seeds could last anywhere from one to five years! However, most experts recommend that to get maximum germination from your cannabis seeds, you plant them as soon as possible (but only if you are lucky enough to live in a country where this is legal). If you have any questions about storing your cannabis seeds then drop us a message!