Cannabis seeds are more than just small grains - they are living organisms that can survive for years under the right conditions. But to ensure that your seeds retain their full germination capacity, it is crucial to store them properly. In this guide, you will learn how to store your cannabis seeds properly, what mistakes to avoid and what conditions are ideal for long-term storage.
Why is proper storage of cannabis seeds so important?
Before we get into the exact methods of storage, it's important to understand why storing cannabis seeds properly is so crucial. These seeds are in a dormant state, much like animals hibernate, waiting for the ideal conditions to germinate. However, if stored incorrectly, they can quickly lose their viability, causing them to fail to germinate.
The four main enemies of your cannabis seeds
To store your cannabis seeds properly, you need to know the four main enemies that can affect their condition: humidity, temperature, light and oxygen. These factors can bring the seeds out of their dormancy or even damage them if not properly controlled.
1. Humidity: The invisible enemy
Humidity is probably one of the most important factors when it comes to storing cannabis seeds. Too high humidity can cause the seeds to germinate prematurely or even become infected with mold. On the other hand, too low humidity can dry out the seeds and reduce their ability to germinate.
Effects of humidity on cannabis seeds:
- 80 - 100 % : Seeds are starting to germinate, which is something you want to avoid if you plan to store them.
- 40 - 60 % : Here the seeds increase their respiration, which makes them more susceptible to mold attack.
- 20 - 30 % : Ideal for short-term storage.
- 12 - 14 % : Perfect conditions for long-term storage.
- 8 - 9 % : May shorten the lifespan of seeds if stored for long periods of time.
2. Temperature: Constancy is key
Temperature fluctuations are another enemy of your cannabis seeds. Ideally, the seeds should be stored at a constant, cool temperature. Too high temperatures can bring the seeds out of their dormant state, while too low temperatures (eg freezer) are possible but often not necessary.
The ideal temperature for storage:
- Short-term storage : A dark cupboard at room temperature is sufficient.
- Long-term storage : A refrigerator with a stable temperature between 4-8°C is ideal.
3. Light: Avoid direct sunlight
Light, especially direct sunlight, can heat up the seeds and therefore affect storage conditions. Even though seeds naturally have a hard shell to protect them, you should still make sure to store them in a dark place.
4. Oxygen: Less is more
Although oxygen is necessary for germination, contact of the seeds with oxygen should be minimized during storage. Using vacuum or airtight containers can help with this.
The best ways to store your cannabis seeds properly
Now that you know the main enemies of your seeds, it's time to look at the best storage methods.
1. Storage in the original packaging
Many seed suppliers, such as Planet Seed, offer their seeds in special packaging that is ideal for storage. This packaging is often opaque and protects the seeds from moisture and oxygen.
2. Use of airtight containers
If you no longer have the original packaging or want to store multiple seeds in one container, airtight containers are the best choice. Ziplock bags or storage boxes designed specifically for seeds work great. Be sure to remove as much air from the container as possible before sealing it.
3. Storage in the refrigerator
For long-term storage, a refrigerator with no-frost technology is ideal. Not only does it provide a constant, cool temperature, but it also prevents moisture from forming inside. Remember to store your seeds in a dark bag or opaque container to protect them from the refrigerator light.
4. Storage in the freezer: An option, but not absolutely necessary
The freezer can be used to store cannabis seeds, especially if you want to keep them for a very long time. The extremely low temperatures slow down the aging process of the seeds. However, you should only consider this method if you really plan to store the seeds for several years. Again, it is important to pack the seeds airtight to avoid the formation of ice crystals.
Common mistakes when storing cannabis seeds and how to avoid them
1. Store seeds in humid environments
A common mistake is storing seeds in rooms with high humidity, such as bathrooms or kitchens. These environments are far from ideal and can quickly ruin the seeds, so stick to dry, cool places.
2. Frequent opening of the storage container
Every time you open the container your seeds are stored in, you expose them to potentially harmful conditions. Try to open the container as infrequently as possible to protect the seeds from humidity and temperature changes.
3. Buying too many seeds at once
Another common mistake is buying more seeds than you actually need. If you only want to grow a few plants, it is better to buy a smaller amount of seeds to keep them fresh and avoid problems with storage.
Summary: How to store your cannabis seeds properly
Proper storage of cannabis seeds is crucial to maintaining their germinability over a long period of time. Make sure to keep them cool, dry and protected from light, and avoid unnecessary air supply. With the tips and tricks given here, you can ensure that your seeds will continue to germinate reliably even after years.
Invest in good storage methods to ensure long-term enjoyment of your plants!
