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storing cannabis seeds

How to Store Cannabis Seeds Properly – 3 Important Factors to Consider

Did you just recently get a cannabis seed haul but cannot plant them all just yet? Don’t worry. You can store them and save them for later. However, they should be stored in the best conditions possible to prevent them from deteriorating or decaying. So, how to store cannabis seeds properly? Proper storage will also ensure that they will produce the best possible crops. What’s impressive about cannabis seeds is that they can enter a dormant stage, allowing desiccation or drying. This means that they’re meant for long-term storage. As long as you handle and store your seeds properly, you can expect them to survive.

In this article, we’ll take a look at the factors you need to watch out for when storing cannabis seeds. We’ll also share with you some do’s and don’ts in cannabis seed storage. So, read on!

Factors to Consider When Storing Cannabis Seeds

Cannabis seeds storage requires creating and maintaining good storage conditions. These are the factors you need to look at:

Humidity in the Air

When you purchase cannabis seeds from a physical or online dispensary, you have to make sure that they are put in a dry container. Then, once you get home, they should be stored in a cool, dry place. Temperature and air fluctuations can easily damage cannabis seeds. It’s best if you can store them in an airtight container. Then, keep that container in a dark storage place.

Furthermore, you have to remember that when the seeds get exposed to humidity, the germination process may begin unintentionally. As a result, the seeds may rot. If you’re going to store your seeds for a long period, make sure that the humidity in the air never exceeds nine percent.


High temperatures can degrade the health and consistency of your cannabis seeds. For instance, when you keep them in a hiding place that’s near or directly adjacent to an electrical appliance, heat may transfer to the seeds. As a result, the germination process may start. Mold and fungi can also grow and affect the seeds, which is why it’s vital to keep the seeds in a dry, dark, and cool place.

You can also keep them in the fridge to make sure that they’re always cool. However, the container needs to be airtight to keep moisture away. You should also have contingency storage in case the power goes out. Sudden temperature fluctuations will not do your seeds any good. Given this, you should also not take them out of the fridge unnecessarily. The refrigerator door has the right temperatures for your seeds.

When it’s time to use your seeds, take them out of the fridge but don’t take them out of their packaging just yet. Leave them be until they fully adjust to room temperature.


Your seeds will remain dormant when they are stored in a dark place. Prolonged exposure to light will degrade the seeds and when combined with humidity, light can trigger germination. So, once again, keep your seeds in a cool, dry, and dark place.

Do’s and Don’ts in Storing Cannabis Seeds Properly

Here are some reminders when storing cannabis seeds:

Don’t crush them to avoid damaging the shell.

Do label them. Indicate the strain and when did you purchase them.

Do keep pets and pests away.

Do buy from reliable sellers and sources.

If you’re looking to buy cannabis seeds, Coffee Shop Seeds is your best option. Get in touch with us, today to see how we can help.

How To Store Marijuana Seeds

The main factors in determining how to store marijuana seeds are location, temperature, humidity, oxygen and light.

Having prudent and purposeful information about how to store marijuana seeds properly can be the defining factor in being able to germinate the seeds when the time comes to sow them for a new harvest.

If the temperature is off or humidity levels aren’t precise, you risk not having a good harvest; or worse, having the seed not germinate at all.

In this article you’ll learn:

  • Where to store your cannabis seeds
  • What to store your seeds in

Keep in mind that with each passing day, week, month and year, marijuana seeds potency to be germinated is reduced. So using the ones you have when you receive them will give you the optimal results.

What are some storage concerns and suggestions for considering where you’ll be stowing your marijuana seeds until you’re ready to germinate them? Let’s discuss the correct ways versus the possible incorrect ways to store marijuana seeds.

Location Of Storage

Main Storage Options:

  • Freezer or refrigerator
  • Cupboard
  • Humidor

Temperature & Humidity

Whether you know this or not, storing marijuana seeds within a certain temperature will help maintain the possible longevity of the seeds.


They store well under colder temperatures; generally between 42-44 degrees Fahrenheit; which makes the seeds perfect for storing in a “warmer” section of a refrigerator.

But not a freezer. Most people keep their freezers set below (at 0-degrees Fahrenheit) what is recommended (40-degrees Fahrenheit). While most refrigerators are kept around 40-degrees Fahrenheit.


Humidity levels inside a refrigerator generally runs between 60 to 70-degrees Fahrenheit, but down in the produce crisper drawers, humidity levels can reach into the 80 to 90-percentiles.

So this would not be a good place to store marijuana seeds as the levels are just too high.

Using a cupboard to store marijuana seeds may not be the best location.

First, are you able to control the temperature in there? Do you live where winters are real cold or summers get real humid and hot?

Unless you have a temperature gauge in the cupboard, and can regulate the temperature to an even 40-degrees year-round with humidity saturation between 60-70 percent, this is not a viable option for storing marijuana seeds.

A cigar humidor is sometimes where people store their marijuana seeds too.Why? Because you can regulate the humidity levels inside one. But is it the best place to store your marijuana seeds?

I suppose if you were to combine the refrigerator with the humidor, you may have found the precise location to store your marijuana seeds.

The only problem with this would be that the warmest place in a refrigerator happens to be on the door; due to the door being opened and closed so frequently, and most humidors are too large to fit on the door shelves.

Once you have determined the main container and location to store marijuana seeds, you need to research the best option for what type of smaller container you’ll use.

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Confined Storage Options:

  • Plastic bags
  • Glass jars
  • Envelopes
  • Bowls with lid
  • Vacuum sealed plastic

Think about when you order marijuana seeds and how the come packaged to your mailbox. Are they in plastic baggies? Envelopes? Little plastic containers?

Plastic bags

All the seeds I have ever ordered have come in either small clear re-closeable plastic bags or little plastic containers that you can snap shut.

Honestly, plastic bags and envelopes are not a good choice. The seeds can too easily get crush, or if the bag or paper rips, lost.

The little plastic containers with snap-on lids is a great choice as it keeps the oxygen levels at a minimum, has a good seal and is compact and can be stored in the refrigerator with ease.

Glass jars

Glass jars are well known for being the storage container for harvested marijuana, but how practical are they for storing marijuana seeds?

Actually, glass jars are a good choice. Simply because they offer up an air-tight location. But you have to be leery of using clear glass.

Remember that cannabis seeds need light to begin the germination process. So if you are considering using glass, try to find dark brown, dark green or another darker color to help keep direct sunlight from starting the grow process.

Vacuum sealed plastic

If you have access to a food saver kitchen gadget you can use this to seal your seeds in (but make sure to add an oxygen absorber to the bag before sealing package).

Place the sealed package in a small paper lunch bag and store in your refrigerator.

Light & Oxygen Exposure

Light can be a huge hindrance for storing marijuana seeds, as stated in the above section, can cause seeds to want to begin to germinate. So be very selective on what you are storing marijuana seeds in.

Dark is best which prevents light exposure.

Oxygen exposure can be fatal to marijuana seeds.

Oxygen encourages pests, mold and other bacteria that can ruin seeds. Using oxygen absorbers can be effective as they do as the name claims; they absorb excess oxygen.

Since you want to keep oxygen exposure to a minimum, I would encourage investing in these little packets to add to any form of storage of marijuana seeds.