Another factor which can cause cannabis seeds to germinate prematurely is humidity. You see, weed seeds are fairly dry, and in order to split open, germinate, and start developing the root system, they need a good deal of moisture.
After 1 year, you can count on the germination rate decreasing to around 85% – 90%, and this will continue to lower as time goes on. After 3 years, the germination rate will usually be around 50% to 75%, and it just keeps getting worse from there on out.
On the other hand, maybe you purchased cannabis seeds, and they are already fairly old when they get to you. Therefore, you might be wondering how long can you keep cannabis seeds?
There are a lot of factors that go into determining how long marijuana seeds stay viable for, mainly light, temperature, oxygen, and humidity, as well as of course the quality of the weed seeds to begin with.
Yes, to keep weed seeds cool, many people will put them in the fridge or freezer, which is fine in terms of cool, and even dark for the most part, as there is no light inside of a fridge or freezer.
Remember that you do want the canister to be airtight to keep oxygen and moisture out, and generally speaking, the smaller the better. You want there to be as little room for oxygen in that canister as possible.
This is a bit iffy, because there is some variation when it comes to different strains of weed seeds. However, under normal conditions, most cannabis seeds will remain viable for germination for up to 5 years.
How long your seeds will last can vary. If great care is taken for the seeds to be protected from humidity and light, and provided a cool environment the center of the seed will remain dormant, making the marijuana seed last longer. That way, the only thing needed to germinate the seed will be to soak them overnight in water then place them in a damp tissue or Jiffy plug and germinate normally.
As we mentioned before, marijuana seeds can be made to last very long if they are refrigerated. Without any interference, marijuana seeds can last a few months before they go bad, even up to a year if they are kept in a cool, dry and dark place, but if they are refrigerated, marijuana seeds can last up to a decade.
There is plenty of debate surrounding how long do marijuana seeds last before they go bad. Some people say that they can last for years if they are kept in the correct conditions, while others disagree and state that they can only be used within 6 months to 1 year after packing. So the question is, how long do marijuana seeds last?
How Long Do Marijuana Seeds Last Before They Go Bad?
Unfortunately, the answer to will a cracked seed still germinate is No. It cannot germinate as the valuable internal part of the seed that contains the genetic information of the plant is exposed, then the seed will no longer germinate. Great care must be taken to ensure the seeds are not damaged or crushed, including putting them in vials stuffed with cotton wool to ensure they don’t rattle around and harm each other.
In some cases the latter may be true, if they are weak genetics or the seeds have been kept in adverse conditions. How long the seeds will last depends totally on the conditions they are stored in. If the seeds are humid or exposed to light, they will not germinate from being damaged internally. It is also essential to add that the seeds must be protected from being crushed.
Cannabis seeds can withstand long amounts of time in storage, as long as they are well protected. A cool, dark environment with no humidity or strong aromas is good to store the seeds for a few months, but if you want to extend the shelf-life of the seeds, then they must be refrigerated.
So, how long marijuana seeds will last depends on the care you take to conserve your marijuana seeds in the correct way. If you are very careful marijuana seeds last you for ages. You can even stock up on strains to have your own collection and at the same time, remain self-sufficient throughout the year.
You can ‘test’ your seeds once you have removed them from storage. Place them in water. If they sink, they should be fine. However, if they float, it is more likely that they are bad seeds. You can still try to germinate, but there is a greater risk of producing poor-quality cannabis, or else the seeds fail to sprout. You can keep floaters in water for approximately 72 hours to see if they sprout a tail.
If you have old seeds not stored in ideal conditions, there are still a few ways to germinate them.
Make sure your seeds remain away from light, as it can directly trigger germination.
A Note on Insects & Pests
Once you enter medium-term storage (a few months), it is time to use an airtight container. Examples include a mason jar or Ziploc bag. Place this sealed container in the fridge. Remember that opening your fridge can cause significant temperature fluctuations. As a result, it is ideal if you have a second fridge that is seldom used.
If you don’t begin with great seeds, you can forget about producing a harvest of high-quality marijuana. A lot of growers seem to forget one simple fact: Your seeds are alive! Although cannabis seeds are fairly durable, improper storage can ruin them. If you’re paying $10-$20 a seed, losing a full batch is an expensive mistake.
You also have the option of placing the seeds in the freezer. Remember, though; you need to germinate them immediately upon removal.
Another option is to freeze the cannabis seeds. If you go down this route, please ensure that you vacuum pack them first. Then put them in a dark container. Also, it would help if you germinated these seeds immediately once they come out of the freezer. Don’t allow them to thaw first.