How To Store Your Cannabis Seeds

How to properly store seeds for days, months, or even years.
13 May 2020
4 min read
How To Store Your Cannabis Seeds

Contents:
  • 1. Cannabis seeds
  • 2. Storing seeds
  • 3. Ideal conditions for storing seeds
  • 3. a. Light
  • 3. b. Humidity
  • 3. c. Temperature
  • 4. Storing seeds for weeks
  • 5. Storing seeds for months
  • 6. Storing seeds for years
  • 7. In conclusion

Seeds are where all begins, the care you give your seeds will influence not only in how your cannabis grows but in the final harvest.

1. Cannabis Seeds

Before talking about how to store seeds we need to remember you that your cannabis seeds are alive. Before they germinate they are kind of in a state of hibernation, and like all living things, they can die.

 

How To Store Your Cannabis Seeds: Cannabis Seeds

How to store your cannabis seeds.
 

When storing seed you want to provide optimal conditions to ensure they are still good until you’re ready to sprout them.

As we’re dealing with nature, you need to keep certain conditions or this can have an impact. Even though seeds have a hard shell and are fairly robust, you should have the following points in mind to avoid any kind of problems in the future.

 

2. Storing Seeds

When stored under perfect conditions, cannabis seeds can be viable for up to 10 years successfully. Seed storage is important for many reasons, either you’re a home grower waiting for the special occasion to grow that unique strain you just bought or seedbanks who need to stock seeds for the eventual sale.

Whatever your reason may be for having seeds, remember that taking care of them is one of the most important things you can do for your harvest. 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.

3. Ideal Conditions for Storing Seeds

There are three main factors that can affect seeds in a bad way:

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 germinating before you're ready to plant them.

Humidity

Humidity is another incredibly important factor that can determine the success rate of your seeds as humidity is essentially what causes seeds to germinate. You don’t want them accidentally germinating, if they reach a certain humidity level they may start absorbing nutrients and end up too weak to grow normally, so you want to keep them in a relatively dry place.

This obviously depends on your climate 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.

 

How To Store Your Cannabis Seeds: Silica gel to control humidity

Tip: A good way to keep humidity low is to use silica gel sachets.
 

If there is as low as 8% humidity in the container it can cause fungi to appear inside and outside your seeds, at 40-60% your seeds will sprout and beyond that, they can drown in less than a day.

Temperature 

The temperature at which you store your seeds is quite important. You’ll need to store them at around 6-8 celsius. You can keep them in your home fridge or even your freezer (however it’s usually not necessary).

 

How To Store Your Cannabis Seeds: Best temperature to store cannabis seeds

The best temperature to store cannabis seeds.
 

We recommend storing them in the vegetable drawer or far back in the refrigerator and using a small cooler or something similar so the temperature doesn’t oscillate when opening the fridge door or if the power goes out.

4. Storing Seeds For Weeks

If you’re storing seeds for a couple of weeks it’s okay if you leave them in the original package as long as they are in a dark, dry, and cool place.

 

How To Store Your Cannabis Seeds: Storing cannabis seeds in original container

Storing cannabis seeds in the original container.
 

Usually, the package they come in is light-proof and water-proof, as long as you leave them in a relatively cool place like a drawer or something similar they will be good.

5. Storing Seeds For Months

If you’re storing your seeds for a couple of months it’s better if you store them in the refrigerator. This will guarantee the seeds don’t suffer from temperature swings. By keeping them in their original package or in a light-proof container you ensure they will be good for as long as you need.

6. Storing Seeds For Years

This usually applies to seed banks or breeders. If you need to store seeds for a really long time you can store them in a freezer. Even though it’s not necessary, it prevents you seeds from feeling the oscillation of temperatures even more.

You can still store them in a fridge, it depends on what you prefer and what options you have available. Ideally, you want to store your seeds in a cool, dark, and dry place.

Tip: When storing seeds in the fridge or freezer you can add silica gel sachets to ensure they’re completely dry.

High humidity can trigger fungi to grow on your seeds. If your seeds get exposed to light or rapid changes in temperature it will trigger them to use up their nutrient stores before they ever see soil, meaning they won’t have the nutrients they need to germinate.

7. In Conclusion

It doesn’t matter if you’re a breeder, a grower, or a seed bank, always keep your seeds following the tips above. This way you ensure your so precious genetics will still germinate when you are ready to grow them.

13 May 2020
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