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Cannabis seeds can remain viable for many years if they are properly stored; however, environmental factors such as light, heat, and moisture can negatively impact the viability of the seeds. For short-term storage, it is recommended to put the seeds in an airtight container and store them in a cool, dry, and dark place. Placing a desiccant in the container will help to regulate the moisture level. By storing the seeds in this manner, they typically remain viable for several years.
For long-term storage, many growers choose to store the airtight container in a refrigerator or freezer. Seeds stored in this manner typically remain viable for up to five years; however, some growers have been able to germinate seeds that are decades old by storing them properly.
When you are ready to grow your cannabis seeds, check out our blog post about seed germination here.