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Tips for Storing Marijuana Seeds in 2022

After you’ve worked hard to germinate weed seeds, it may be satisfying to save your unwanted seeds in a bag for later use. In contrast, you will be in for a nasty surprise when it comes to germinating weed seeds for another batch of seeds. If marijuana seeds are improperly stored, they will no longer be suitable for planting. So Seed Supreme will help you if you want to discover how to store cannabis seeds.

What is the significance of seed storage?

Marijuana seeds can be appropriately stored for 5 to 10 years. Seed storage is essential for a variety of reasons. Someone who has created a high-quality genetic makeup may desire to save the marijuana seeds from replicating the strain. Some marijuana gardeners who live in places where there is a lot of marijuana activism and restructure are currently preserving marijuana seeds of their favorite strains to grow if marijuana becomes legal in the future. And, whatever the reason for having seeds, remember that caring for them is one of the most critical things you can do for your crop.

Temperatures at which seeds should be stored

The ideal temperature for storing marijuana seeds is between 43° and 47° F. The lower the temperature, the less likely your marijuana seed will germinate abnormally. Experienced cannabis gardeners appear to have special refrigerators for storing their pot seeds. Your refrigerator should preferably be non-frost unless you can place the marijuana seeds in the vegetable and fruit department, which is much better. Another option is to freeze your marijuana seeds. And if you’re going that route, please make sure you vacuum pack it beforehand. Then you put it in a dark container. It would also help germinate such seeds as soon as they came out of the freezer. Don’t let them defrost first.

Proper Humidity

Marijuana seeds require a certain quantity of moisture to germinate. When the humidity level in the storage container is too high, your marijuana seeds may decay. The shallow moisture content of roughly 8 to 10% is only appropriate for long-term storage. If it goes below 8%, any pests existing in the seedlings will become active and reproduce.

The following probabilities describe what is likely to happen to marijuana seeds at certain humidity levels:

  • 61 % or more – The higher this humidity level, the greater the risk to your seeds. When it reaches 80 percent, your marijuana seeds will wilt and die in about 12 hours.
  • 31-60% humidity — This is a germination zone, significantly when the humidity level exceeds 40%.
  • 21–30% The ideal humidity level for keeping cannabis seed.
  • 9–20% of the seeds are more prone to developing outdoor and indoor fungus. They start sweating when the humidity is less than 20%. Nonetheless, 8 to 10% is a “sweet spot” for long-term storage in the correct atmosphere.
  • 8% – Seeds will attract insects and other pests.

Cannabis Seed Storage Options

You now understand the need to keep your seeds away from direct sunlight. Here is an outline of the requirement for relatively low humidity and cooler-level temperatures. Several possibilities depend on how long you intend to keep the cannabis seeds.

Short-Term Storage

A cupboard or a dark drawer would enough if you only need short-term storage for your seeds. The most important thing, regardless of storage time, is to avoid variations in humidity and temperature. Fast temperature changes, in particular, may wreak havoc on marijuana seeds, so if you live in an area with hot days and chilly nights, avoid storing your seeds outside. Place your cannabis seeds in a desiccant container for short-term preservation. Spot it in a dark, cool place after sealing it.

Medium-Term Storage

After entering medium-term storage (a few months), it’s also time to utilize the airtight container. These include a ziplock bag or a mason jar. Refrigerate this sealable bag/container. Keep in mind that opening your refrigerator can result in drastic temperature swings. As a result, it is appropriate to have a second refrigerator that is rarely used. It is also worth noting that modern freezers have low humidity levels. And if the humidity is too low, your seeds will begin to use nutrients.

See also  marijuana seed bank oregon

Long-Term Storage

If you want to keep your cannabis seeds for roughly six months, utilize a vacuum-sealed bag/container. This effect can be created by removing all the air from the Ziploc container/bag. Unique vacuum-sealed bags are also available online. Place the sealed bags in the dark containers and place them in the refrigerator. You can also freeze your cannabis seeds even though you must germinate soon following removal.

Tips for growing aged marijuana seeds

Here are some pointers on how to germinate your old marijuana seeds:

Pre-soaking in enhanced carbonated water

Before germinating your old cannabis seeds, soak them in a germination enhancer, such as carbonated water loaded with fulvic acid, hydrogen peroxide, or gibberellic acid. For best results, use room temperature water and immerse your marijuana seeds in a dark spot for 12 hours.

Scar your cannabis seeds

Old cannabis seeds often have an extra layer of the hard outer shell. Scratch its surface slowly with sandpaper to help bring warmth and moisture to your cannabis seed during germination. To help your old weed seeds sprout, gently scar them just before they can be soaked.

Remove the seed ridge.

The ridge is the slightly elevated side of the seed. Like many other elements of the shell, the ridge may become extremely hard over time. Remove it slowly with a sharp blade, which will aid in the growth of your weed seed.

Cut the seeds in half.

In your final try to germinate your cannabis seeds, a tiny cut in the seed’s shell may be helpful. However, it is not a miraculous remedy, and you must take care not to damage it on the inside. Keep in mind that some older seeds do not germinate, no matter how hard you try. If possible, try to buy marijuana seeds in bulk to prevent germination issues.

Final Thoughts

If you buy and intend to use cannabis seeds straight away, you should have no concerns. Aside from that, keep them away from direct sunlight. A dark cupboard is sufficient for short-term storage as long as the humidity and temperature are acceptable. Everything changes when your goal is to keep marijuana seed for months rather than days or weeks. It would help if you had an airtight bag/container stored in a refrigerator. These include vacuum-sealed bags if you intend to keep the cannabis seed for a few months or even longer. When keeping marijuana seeds, you must ensure that they are not exposed to germination settings. This means that they are shielded from direct sunlight. Store them at 20 to 30 percent humidity (or 8 to 10 percent for long-term storage) and a cold temperature. Keep the environment clean to avoid pests, and remember the instructions for growing old cannabis seeds.

How To Store Seeds for Years.

Over the Last Several Months, I Acquired Quite the Seed Collection.(Link)
I Managed to Accumulate 500+ Seeds, and Currently I’m Not even Growing so I Needed to Find a Way to Preserve these Amazing Genetics
With a Little Research and a Bit of Common Sense I Devised a Method.

Deep Freeze: IMO is Good For Storing for Decades or More. Bare in Mind a Small to Medium Percentage (20-35%) WILL be Lost Due to the Deep Freeze. The Seeds that Survive the Freeze Should Stay Viable for a Lifetime.

I Plan on Using Most-All my Beans Within 3-5 Years. I Believe With the Proper Tact/Precautions the Fridge proved to be the Most Practical ( Everyone has One, If Not Seed Storage is the least of Your Problems )

See also  is it legal to buy marijuana seeds in tennessee

Seeds Store Best in Dark Places, a Cool, Steady Temperature is Important.
Moisture can be your Worst Enemy and you Best Ally. Too Much and the Bean will Germinate, not Enough and The Seed Will Dry Out. There is Enough Moisture in a Refrigerator to Actually Start Germination in a Seed. To Counter Act the Moisture I Use Instant Rice. The Instant Collects more Moisture than Regular Rice.

Problem was Keeping Several Different Strains Separated yet Combined in the Same Container.

Small Glass Vials

Used for Sample, Oils, Perfume, Cocaine, Ect.
They Can be Found at Spice Shops and Ebay.

Their Unit of Measurement is Called a Dram
1 Dram= Holds approx 1/8 Fluid Oz and is 1.75" High x 0.5" Diameter/Wide
I Found 1/2 Dram was perfect size for me (1.375"H x .375"W) which can hold up 40 seeds/Max with Rice. Although they are Ideal for 20-30 Seeds and Leaves Enough Extra Space for Plenty of Rice.

I Fill The Bottom With a Layer of Rice, Then a Layer of (10-15) Seeds.

Then Another Layer of Seed and Rice to Top it Off

Although the Caps Fit Pretty Snug, I Use White Electrical Tape to Create an Even Better Seal, Also it Works Well for Labeling

I Then Use Black Electrical Tape to Block any Light from Penetrating the Vial, Which Also Prevents them from Braking if They Get Knocked Around

My Vials, All Ready for Next Step.

DRUGS: Responsible for Teaching Americans the Metric System

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I Use a Small Mason/Ball Type Canning Jar

I Found the 6oz Jars are an Excellent Size (3.75"H x 2.75"W). Nice Thing is This Size is VERY Common, for Candles, Spices, the Larger Baby Food Jars. Lots of Recycled Jars on E-Bay

Sweet Thing is, They’re Tall Enough I can Stack the Vials Inside. A Row of 14 on the Bottom + a Row of 14 on Top of Them for =28 Total Vials

I Fill All Remaining Space in the Jar With Rice

Just Like The Vials, I Cover the Entire Jar with Electrical Tape to Block Out any Light Penatration, then Seal the Lid with the Tape

Then In The Fridge it Goes

I Save all My Original Packaging in a Separate Jar

I Know All This May Seem a Bit Over Board However I have Close to $5K in Seeds, I Believe, Many of Which, Soon Won’t be Available

I Hope This is Helpful to Someone!!
Keep IT Up Everyone!!

-Capt Dutch

DRUGS: Responsible for Teaching Americans the Metric System


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Any man that knows a thing knows he knows not a damn thing at all. id=1422&page=2
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very nice, i like it.

you should report back here in 1,2,3,4,5 years when you germ these to show what % you got and if this is the best method. looks pretty sound to me.

R.I.P. Brother Elemental


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That is a great post!
This definitely should be a sticky or be in one of those "Links for things you need to know" posts.

See also  panama marijuana seeds

K+ to you, my friend!


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Nice post dutch.

Get to poppin’ a few now while you wait for the results of the deep freeze


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get there while you can


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Please join the


on ICMag! 323 Members STRONG & GROWING!

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Spread your knowledge of Cannabis to all!

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Interesting addition to Freezing them Sounds correct to me, In fact. May be wise to thaw them out the same way.
As an Electrician , I Once went to a Frozen Seafood Processing Plant that Recently Closed. All The Food was Still There Cryogenically Frozen (-200° C!!).
I Don’t Really Know The Technicalities, However to Move the Preserved Food, They Couldn’t Simply Thaw out Food When it is THAT COLD They Had to Gradually Raise the Temp a Few Degrees Each day.
Thats Where I Came in , The Last Couple People that Still Had Their Job at the Plant, Were the People who Monitored the Temperatures of the Freezers. We where Installing a Remote Monitoring System, so The Temps could be Observed Elsewhere (We Took Our Time, So The Workers There Could Get a Final, Full Weeks Check )

Interesting Blurb from the Wikipedia Page on Cryogenics:
"Cryogenic storage at very low temperatures is presumed to provide an indefinite, if not near infinite, longevity to cells although the actual “shelf life” is rather difficult to prove. In experiments with dried seeds, researchers found that there was noticeable variability in deterioration when samples were kept at different ‘frozen’ temperatures–even ultra cold ones. Temperatures below the glass transition point (Tg) of polyol’s water solutions (around minus 136°C) appear to be accepted as the range where biological activity very substantially slows down, and minus 196°C (liquid phase of liquid nitrogen) is the preferred temperature for the storage of important specimens. While fridges, deep freezers and extra cold deep freezers, all similar to domestic ones, are used for many items, generally the ultra cold of liquid nitrogen at -196°C is required for successful preservation of the more complex biological structures to virtually stop all biological activity."

BTW SOTF420, The "Q-tip ends" is a Commendable Idea, However it wouldn’t work with these Vials. The Top Openings(Necks) aren’t Wide enough (5mm) Some of the Larger Seeds where a close fit. Well I bet you could get the Q-Tips in. However getting them out Would be a Whole ‘nother Struggle

I Don’t Think the Rice will get Moldy or Nasty . I’ve Never Read of anyone Having that Problem.

Think of When You Order Chinese Food, You Always get The Free White Rice. Because you got the Delicious Pork Fried Rice Unfortunately the White Rice Usually goes to Waste. When you (Maybe this ONLY Pertains to me ??) Come Back a Month or so Later , The Rice is Simply Dried out. Not Moldy or Even Nasty, and That was Moist when it was refrigerated. So I Think It’ll be Fine

Thanks for The Input . Please keep it Coming, I’d like this Thread to be Up for a little while so It can be Seen, to Teach

-Capt Dutch

DRUGS: Responsible for Teaching Americans the Metric System