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How Long Can You Safely Keep Cannabis Seeds

Cannabis seeds are a valuable commodity. Not only do they allow you to grow your cannabis, but they can also be used for breeding purposes. If you're looking to keep your seeds for an extended period, you'll want to know how long they can be stored safely. In this article, we will discuss the various factors that affect seed longevity and provide some tips on how to store them properly.

How Long Can You Safely Keep Cannabis Seeds

How Long Do Cannabis Seeds Last?

The answer to this question depends on several factors, including how the seeds are stored. Cannabis seeds can last for many years if they are stored properly. The key to storing cannabis seeds is to keep them in a cool, dark place. Seeds that are exposed to light or heat will degrade more quickly and may not be viable when you try to plant them.

Cannabis seeds that are properly stored can last for several years. However, it is always best to plant them as soon as possible for the best results. If you have old seeds that you want to use, it is best to test their viability before planting them. There are a few different ways that you can do this:

  • Place the seed on a damp paper towel. Fold the towel over the seed and place it in a dark, warm place. Check on the seeds after a few days to see if they have sprouted.

  • Place the seeds in a cup of water. Again, check on them after a few days to see if they have sunk to the bottom of the cup, which indicates that they are viable.

  • Plant several seeds in the soil and water them regularly. After a week or two, you should be able to tell which seeds are germinating and which ones are not.

If you want to store cannabis seeds for future use, make sure to keep them in an airtight container in a cool, dark place. You can also put them in the freezer, but make sure to thaw them slowly before planting. Cannabis seeds are a valuable commodity, so it is worth taking the time to store them properly. With proper care, your cannabis seeds can last for many years.

Factors that Affect Seed Longevity

Several things can affect how long your cannabis seeds will last. Here are some of the main factors:


Seeds that are kept in a cool, dark place will last the longest. Light and heat will cause them to degrade faster. Seeds that are stored in an airtight container in the fridge can last for years. If you're not sure how long your seeds have been stored, it's best to germinate a few and see how they fare. Cannabis seeds are hardy little things, but they won't last forever. Keep an eye on them and replace your stash every few years to ensure you always have fresh seeds on hand.


Cannabis seeds may endure a great deal of harm and yet be healthy. Heat, on the other hand, will always cause their destruction. One enemy of cannabis seeds is temperature.

If you're storing your seeds long-term, you need to make sure they're kept cool. It is advised to maintain the seeds between 42°F and 46°F in temperature. Any higher than that and you risk damaging or killing your seeds.

There are a few ways to keep your seeds at the perfect temperature. One is to store them in a fridge or freezer. This will keep them nice and cool, but it's not the best option if you're planning on germinating them any time soon. The other option is to use a temperature-controlled storage unit, like a wine fridge. This will keep your seeds at the perfect temperature without freezing them.


The shelf life of weed seeds is influenced by humidity, which is directly connected to temperature. Although it's essential for seed germination, you want to maintain relative humidity to a minimum when keeping seeds. The ideal relative humidity range would be between 20 and 30 percent; you still need some moisture so that the seeds don't entirely dry out.


The amount of oxygen that cannabis seeds are exposed to is one of the main factors that determine how long they will remain viable. Oxygen causes the degradation of cannabinoids and terpenes, which reduces the quality of the weed. Oxygen also speeds up the germination process, so if you're trying to store your seeds for a long time, it's best to keep them in an airtight container in a cool, dark place.

Tips & Techniques for Storing Cannabis Seeds

Cannabis seeds are a valuable commodity. If you're a cannabis grower, chances are you've had to ask yourself how long you can keep your stash before it goes bad. While cannabis seeds can last for years if stored properly, there is no surefire answer as to how long they will stay viable. Here are some tips and techniques for storing your cannabis seeds so they will last as long as possible.

  • Store your seeds in a cool, dark place. A fridge or freezer is ideal, but any dark cupboard will do.

  • Keep your seeds in an airtight container. This could be a zip-lock bag, a Tupperware container, or even just a jar with a lid that fits snugly.

  • Avoid exposing your seeds to light, heat, or moisture. These are all enemies of cannabis seeds and will shorten their shelf life.

  • If you can, store your seeds in a vacuum-sealed container. This will keep them well preserved for years to come.

Additional Tips and Suggestions for Storing Cannabis Seeds

It is necessary to label everything clearly for future usage while handling a variety of seeds. Even while it may seem obvious, it can be simple to mix up your seeds, especially if you are working with several different strains. You should thoroughly inspect your seed containers for any form of pests before labeling and sealing them. 

An entire batch of seeds could potentially be harmed by only one bug. To keep any stray insects or pests out, make sure to properly close seed containers.

  • Keep your seeds safe and organized

  • Make sure everything is labeled for future use

  • Keep pests out of your seeds

  • Store in a cool, dry place

A tight seal will also stop them from opening accidentally if they are knocked over. Also, keep in mind that it is never a good idea to open a sealed seed container before planting.

Are You Looking to Buy Cannabis Seeds?

You’ve come to the right place! Dixon Wellness is on a mission to bring safe, affordable, and compassionate access to cannabis to the people of Northern California and beyond. Our products have been lab-tested by independent, state-licensed laboratories so they can be free of any harmful contaminants while ensuring that we keep the cost down for our loyal customers. We are constantly working with credible brands, legacy farmers, and environmentally conscious producers to help sustain our community! Dixon’s first and only women-led cannabis resource, we are founded on the pillars of community, compassion, and education. Interested in our products? Check out our online menu or plan your visit today!

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