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will freezing cannabis seeds kill them

As mentioned above, seeds require cold temperatures so they don’t lose their essence. Either freezing or refrigeration will do. However, when keeping seeds in the refrigerator, keep them as far back as possible so they won’t be exposed to any temperature changes when the door is opened.

Furthermore, seeds should never be exposed to direct sunlight and should be kept in a dark, dry place. Excess light and humidity can lead to premature germination. Ideally, 9% or less humidity is preferred.

Cannabis seeds should be stored somewhere cold and frigid. Whether you store your seeds in a freezer, refrigerator, or even a cabinet or drawer, it’s important to leave them there until it’s time to germinate. Rapid temperature variations will destroy the genetic integrity of your seeds.


If only being stored for a few months, cannabis seeds should do fine in a grip-seal bag, placed in a mason jar or some other type of airtight container. For more long-term storage, a vacuum-sealed package is a much more popular option. Many seasoned seed-savers like to add a food-grade desiccant to their package as well.

Some people who live in regions where there is a lot of cannabis activism and reform are currently stockpiling seeds of their favourite strains to grow when it’s legal in the future. 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.

When cannabis seeds are properly stored, most growers find the majority are still full of life after five years. Many growers have even grown high-grade cannabis with seeds up to 10 years old.

A few basic things to remember are, always store seeds in a cool, dark, dry location, and never let them see direct sunlight.

But I wanna see how it goes though.

hey skunkushybrid, if you happen to have some cloning hormone handy treat them with this to increase the chance that the pop. i really would love to know if there is some life left in them.


I have never heard or read that it is bad to freeze your seeds. If any of these do not survive then that is the way it is meant to be. I’m only looking for the one decent fem’. the rest can. well, I’ll leave it to your imagination.

Just getting them back into room temp. air for a day or so should make them ok to germ. As long as you dont TRY to defrost them (ie. microwave or fast warming).

oh well, this is what nirvana seeds state to this:
How do you recommend storing Cannabis seeds?