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How Long you can Store Cannabis Seeds – 2020

Way to store cannabis seeds

They are where it all begins. The care you give your cannabis seeds will determine not only how your plants grow, but also the final results of your harvest. As we are dealing with a natural product that needs to develop, the conditions under which it is stored will have an impact on their subsequent yield. Thus, though marijuana seeds are quite robust and autonomous, if you want to avoid unwanted setbacks when you plant them, you should take steps immediately after obtaining them.

Important things to consider

When stored under perfect conditions, you’ll germinate 5 year old cannabis seeds successfully. For homegrowers, storing and maintaining seeds is kind of important, and even more so for seed banks; a badly stored seed might not germinate, and if it does it’s going to not grow properly. There are various parameters you’ll have to be compelled to follow so as to store seeds long-term.


The temperature at which you store your seeds is sort of important. You’ll got to store them at around 6-8° – if you intend on storing a huge amount of seeds, we recommend buying a small sized cooler for that specific purpose to stay them at a low, constant temperature.

You can also keep them in your fridge at home, simply make some space for them and away you go. We recommend using a no-frost fridge and if possible, storing them in the vegetable drawer.


Humidity is another incredibly important factor that may determine the success rate of your seeds. Relative humidity is actually 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.

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


If you’ve ever germinated cannabis seeds before, then you recognize that light is a crucial factor when it involves the probability of the seed germinating or not. If your seeds are exposed to light for too long, they’ll end up too weak to germinate; even though they germinate they could have quite hard time kicking off.

How to store cannabis seeds

Taking into consideration the previously mentioned parameters, the most effective way to store your cannabis seeds for long periods of time is to vacuum seal them then put them into an opaque container or bag in order that no light gets to them. Keep them at a continuing temperature of 6-8°. Some growers use products like silica sachets to stay humidity down even though the outside temperature/humidity is drastically altered – this is often an honest idea if you reside in more humid or hotter climates.