How To Store Cannabis Seeds

How To Store Cannabis Seeds

Reference Article
Director, Joint & Parihar, Surendra & Dadlani, M & Lal, Sandeep & Tonapi, Vilas & Nautiyal, Prakash & Basu, Sudipta. (2014). Effect of seed moisture content and storage temperature on seed longevity of hemp (Cannabis sativa). Indian Journal of Agricultural Sciences. 84. 1303-9.
https://www.researchgate.net/publication/277133135_Effect_of_seed_moisture_content_and_storage_temperature_on_seed_longevity_of_hemp_Cannabis_sativa

How Does Storage Temperature Impact Seeds?
Study performed on Hemp (Cannabis sativa L.)
Seedling lengths (measured in cm) were compared across the following number of storage months…
Storage Months: 0, 3, 6, 9, 12, 18, 24, 36
In addition at each storage month the moisture content of the seeds were also evaluated.
Moisture Content of Seeds: 5%, 7%, 8%, 10%, 12%
This was performed across three different storage temperatures
Ambient: 10⁰C (50F) winter to 40⁰C (104F) summer
15⁰C (59F)
-20⁰C (-4F)

Ambient Storage Conditions: 10⁰C (winter) to 40⁰C (summer)
The continual temperature fluctuations reduced the storage time across all seed moisture contents.
Only the 5% moisture content seeds were able to have germination past 9 months of storage.

15⁰C and -20⁰C Storage Conditions
Under these temperatures, if the moisture content of the seeds was under 10% seedling growth could still occur up to 36 months of storage
However, if the moisture content is 7% or less than seeds had similar seedling lengths

Look For Stated Moisture Contents…

How Should Cannabis Seeds Be Stored?
Low moisture content seeds (under 10% with 5% suggested)
Cool (under 15⁰C (59F)) and dark conditions

If you are looking to keep the seeds long term than taking the extra step to store the seeds in an environment that is -20⁰C (-4F) is justified.

Link to Lecture Slides: https://drive.google.com/file/d/11hYZfhUlPynXUiJbJRe_QjjgMohIVEcV/view?usp=sharing

*Due to the description character limit the full work cited for “How To Store Cannabis Seeds” can be viewed at… https://drive.google.com/file/d/13cxoTC1KnGzg-XkMCep8iw0n8Grh5Boe/view?usp=sharing

19 Comments

  1. JossMan on October 6, 2021 at 8:08 am

    great video, thanks for sharing
    i keep my seeds stored in a jar at the bottom of my refrigerator at 5C and lower with desiccant packs to keep moisture levels low. i worried the desiccant packs may have overdried the seeds however i’ve had 100% germination using this method and this video backs up that confidence in my storage method so thankyou very much
    i have heard of seeds being stored in freezers for two decades and having been viable still
    it’s very useful to have some science to back up these claims
    long term storage of cannabis seeds is critical as we are seeing a lot of irresponsible breeding and bottle necking of the genetics which will only exacerbate over time as the demand for fem seeds goes up
    now is the time to really protect current and old world genetics, with a view of regular reproduction to keep seeds viable.



  2. olga Olga on October 6, 2021 at 8:10 am

    Dobtam a csontod ratyi.



  3. SpocksLesserKnown2ndCousinBruce on October 6, 2021 at 8:16 am

    I was under the impression that storing in the fridge (~ 4degrees C) in a airtight, dark container was optimal. Is this true? Minus 20c or up to plus 15c is a big range! What are your thoughts on dark, airtight 4c in fridge professor?



  4. daveinluray on October 6, 2021 at 8:20 am

    Any thoughts on vacuum sealing them? curious if could benefit or harm.



  5. Tim Robson on October 6, 2021 at 8:25 am

    Stick them in an air tight container and put them in the fridge, this method has worked many times for my up to 24 months storage



  6. MadMacss on October 6, 2021 at 8:30 am

    Finaly, hard data with great a explanation. Thanks prof!



  7. ilysmary on October 6, 2021 at 8:37 am

    0:25-0:26 You sound so excited to talk about this topic!



  8. Mista Man on October 6, 2021 at 8:39 am

    Put in refrigerator, Be ok ..



  9. Floyd Jammer on October 6, 2021 at 8:39 am

    I’m using seed this year that is 6-7 years old. They keep for many years if you are careful.



  10. Sam Morris on October 6, 2021 at 8:40 am

    You never cease to amaze me professor. Thank you for the video



  11. RANDOM USER on October 6, 2021 at 8:49 am

    THANKS! What I needed!!!



  12. ducon lajoie on October 6, 2021 at 8:50 am

    Youtube is translating this as/from vietnamian. for someone like me who need subtitles to understand english it’s quite a problem. 🙁



  13. CORNER MARKET PLACE on October 6, 2021 at 8:51 am

    Very very good. ! Hope you get many more subs.



  14. Jorundr Nonya on October 6, 2021 at 8:52 am

    I’ve always just took seeds out of nasty and grew it and never not had a problem with them sprouting or growing dank plants. Then again you can’t just go to a dispensary in my state and buy anything.. the only dispensaries we have are cbd… ain’t no one want them seeds 😂😂



  15. EyesWideShut on October 6, 2021 at 8:52 am

    Don’t give up on a good seed, wake that enzyme up.



  16. Wes Sproule on October 6, 2021 at 8:53 am

    Have stored in freezer for years and years with amazing results good vid



  17. Jose Baez on October 6, 2021 at 8:53 am

    I have my seeds in a mini fridge that is at 45 degrees in a glass vial in a Tupperware container full of rice hope I still can use when ready



  18. Alfonso on October 6, 2021 at 8:55 am

    Hi professor I have a questions, and please correct me if m wrong, you’re saying the colder the better the odds of survival for the seeds? Should they be stored together? Will bringing them in and out the freezer have a negative impact on overall health of the seeds? Thank you for this professor !



  19. Bruno Mamizuka on October 6, 2021 at 8:56 am

    The idea that the seeds can be freezed is stunning!
    Thank’s professor!