Germinating Old Weed Seeds

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It's hard to germinate old cannabis seeds, but with the right type of method your chances increase ten fold. Check out the Top 4 ways to get those seeds to Crack. Just found some seeds at the bottom of a random drawer? Here are some tips to help you germinate old cannabis seeds. We can only expect to use the old seeds with the cost of seeds floating above potheads’ reach. However, improper or long-term storage of seeds can cause

4 Top Ways How to Germinate Old Cannabis Seeds so they Crack Open

You may have found some old cannabis seeds that you forgot about.

Or maybe haven’t gotten around to planting them and are wondering how to get them to germinate.

The older they are, it’s hard for them to crack their shell.

I have tried various ways to get older seeds to sprout, some successful some not.

There are methods that work better than others.

These are the methods we found to help germinate old cannabis seeds and get them to sprout.

Let’s check them out,

How to germinate old cannabis seeds:

Pre-soak method

The pre-soak method is one way to kick start and germinate old cannabis seeds into sprouting.

We usually start all of our seeds off this way even if they are newer seeds.

It’s recommend you have your water solution at room temperature around 20 degrees Celsius or 68 degrees Fahrenheit.

You can have it warmer depending on the climate you live in. But not too hot.

** Please note: Do not soak your seeds longer than 20 hours or you risk drowning them **

There are a few different additives you can use hydrogen peroxide, carbonated water.

We have also heard of fulvic acid but (it is not covered in post because we never used it.)

Hydrogen Peroxide:

When using Hydrogen Peroxide in soaking your seeds it adds extra oxygen to the water.

This can help the cannabis seeds absorb the extra oxygen for the tap root. Roots like oxygen.

To make this solution use a ratio of 100:1. Use 100 ml of water to 1 ml of hydrogen peroxide.

Next take purified water at room temperature and mix in your hydrogen peroxide.

Then place water solution in a shot glass or glass of your choice then drop the seed in.

Put the glass in a dark warm area.

Wait anywhere from 8-18 hours, tap the seed to see if it sinks. If it does then it has absorbed the water it needs.

You can now either plant it in the medium, pointy side facing down.

Or you can place then in a paper towel soaked container with your hydrogen peroxide solution and use the paper towel method to sprout them.

Carbonated water:

To use carbonated water to germinate old cannabis seeds it’s really simple.

Use room temperature carbonated water (un-flavored).

We recommend you have your water solution at room temperature around 20 degrees Celsius or 68 degrees Fahrenheit.

You can have it warmer depending on the climate you live in.

Simply drop your old cannabis seed into the water and store in a dark warm area for about

Put the glass in a dark warm area.

Wait anywhere from 8-18 hours, tap the seed to see if it sinks. If it does then it has absorbed the water it needs.

You can now either plant it in the medium, pointy side facing down.

Or you can place then in a paper towel soaked container with your hydrogen peroxide solution and use the paper towel method to sprout them.

Scratch Method:

With the scratch method it’s really simple to do all you need is a fine grit sand paper.

Some people use an empty match box to put the sand paper in.

Then the next step is to simply put the seed in a “matchbox with sand paper” and give it a shake once or twice is enough.

See also  Planting Cannabis Seeds Straight Into Soil

What I have found best if you don’t have an empty match box and do not want to take all the matches out of the box.

Cut a piece of sand paper about 3 inches by 3 inches.

Next roll it up so it’s the shape of a tube and wider than the seeds, then put some tape on it to keep it together.

Then just put your finger on one side of the opening to close it.

After that place the seed in the tube of sand paper put your other finger on top and give it a shake once or twice is all that is needed.

Once your old cannabis seeds got there shake on.

The next step is to put them either in a Pre-soak, paper towel method, or grow medium of your choice soil coco, rockwool.

Slice Method:

The slice method is the last resort and a very extreme measure to try and get the seed to germinate and sprout.

After you have tried the methods mentioned above.

You will need a very sharp knife like a razor blade (make sure it is sterile, use some alcohol on it)

Take your old seed and make a slice along the middle of the seed where you can see the division of both sides of the seed.

Now place the seed into the soil, coco, rooting plug or Rockwool of your choice.

Ridge Method:

Some cannabis seeds have a ridge on one side of the seed that is protruding.

You can try and gently remove the ridge with a razor blade if you wish this may allow the seed to sprout open.

Then place the seed into a growing medium or a sprouting method like paper towel or rooting plug.

Final Thoughts

Trying to germinate old cannabis seeds can be very difficult.

Especially if they are not wanting to crack open. About 50 to seventy 75 percent of the time this can be the case.

Try to use some of the methods mentioned like the scratch, pre-soak, and paper towel method.

You could be on the right track to getting them to sprout out.

When you have old seeds you should always try and germinate them.

Because you never know they just might grow up to be a fantastic cannabis plant.

If you want to learn more about germinating cannabis seeds check out our post on it here: Germinating marijuana seeds

Here’s How To Germinate Old Cannabis Seeds

Old cannabis seeds can be hard to germinate. Luckily, there are a few techniques that can help them sprout, even if they’ve been forgotten for some time.

Did you find some old seeds in a forgotten corner of the house? Well, you’re in luck; below we’ll share some simple tips to help you germinate old cannabis seeds.

BEFORE YOU START, SET YOUR EXPECTATIONS STRAIGHT

Before you start, it’s important you remember the following:

• Seeds can take a while to germinate. While healthy, fresh seeds can germinate in just a few days, old seeds can take anywhere from 2 days to 3 weeks to sprout. So be patient.

• Some seeds won’t germinate at all. Unfortunately, old seeds sometimes just don’t sprout. So, if you try all of the tips below and wait patiently without any luck, it’s likely your seeds are just too far gone.

TRY SCARRING YOUR SEEDS

One of the main reasons old cannabis seeds don’t germinate is because they tend to have a very hard outer shell. Now, cannabis seeds naturally have a hard shell that helps protect them until the conditions are right for them to germinate. Over time, however, this outer shell can become so hard that it inhibits the seed from germinating altogether.

To help older seeds along, it’s a good idea to try scarring them. To do so, simply line the inside of a matchbox with some fine sandpaper, place your seeds inside, and shake the box for a minute or so. This will help make some small cuts in the seeds’ outer shells to help them absorb some moisture.

See also  When To Plant Weed Seeds Outdoors

If this isn’t enough, you can try carefully (and very gently) using a sharp knife like a Stanley blade to remove the ridge running along the middle of each seed. This should expose the inside of the seed a little, helping it absorb moisture and, hopefully, giving it a better chance of germinating.

TRY GERMINATING YOUR SEEDS IN CARBONATED WATER

Try dropping your old seeds into a glass of sparkling water. The CO₂ in the water should help the seeds absorb more moisture, encouraging them to sprout. You can also add some fulvic acid to the water to help break down the shell of your seeds. You’ll only need about 2.5ml of acid for a glass of sparkling water (roughly 250ml).

TRY “THE PAPER TOWEL METHOD”

This is a very popular way to germinate seeds. And for good reason; it’s pretty successful. Here’s how to germinate your cannabis seeds using paper towel:

1. Place 2 pieces of paper towel inside a salad plate.
2. Dampen the paper towels and place your seeds on top of it.
3. Cover the seeds with another 2 pieces of damp paper towel, then cover the salad plate with another plate, and keep it in a warm, dark cupboard.
4. Check on your seeds every 2–3 days.

LET MOTHER NATURE DO HER THING

Sometimes, it’s best to leave Mother Nature to work her magic on your old seeds. Try scarring your seeds a little as we showed you earlier, then let them sit in carbonated water overnight. Next, prepare a small nursery pot with some high-quality soil. Make a small hole in the middle of the pot with your finger, roughly the depth of your fingernail. Drop your seed inside the hole and cover it. Moisten the soil and keep your pot in a warm place with indirect sunlight—a windowsill works great.

REMEMBER TO STORE YOUR SEEDS PROPERLY

If you’ve tried all our tips above and still haven’t managed to germinate your seeds, it’s likely they are beyond the point of return. To avoid having the same problem next time, here are some tips to help you store your seeds:

• Seeds like cool, dry, and dark places.
• Quick changes in temperature and humidity are really bad for seeds. Try to keep them in a jar or other container to protect them against these environmental factors.
• Seeds don’t like light. Keep them in a dark place and avoid any unnecessary exposure.
• All of our seeds are vacuum-sealed. For the best germination rates, only open a pack of seeds when you’re ready to plant them.

How To Germinate Old Cannabis Seeds

We can only expect to use the old seeds with the cost of seeds floating above potheads’ reach. However, improper or long-term storage of seeds can cause infertility – and they cannot germinate. However, how do we let those old cannabis seeds come to life again? This guide will help us convert the relics into a sea of green sections of robust cannabis fields!

Sorting Old Cannabis Seeds

The first step in any farming process is to make sure we have the right seeds, and the same goes for weeds. When harvesting autoflowering marijuana seeds, everything is preserved, and nothing is lost. This means that all types of seeds are ripe and immature. How do we distinguish good seeds from bad ones? You are considering the following.

Sorting Seeds By Color And Shape

Whether we obtained the seeds from a seed bank, a store, or a retailer, different cannabis seed strains have different colors. Mature cannabis seeds acquire a dark coat, while immature ones are brighter and usually white. The most visible colors are brown, tan, and sometimes black. In contrast, bright yellows and whites quickly identify immature seeds.

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Cannabis seeds are known for their aesthetic properties and shape. Round and symmetrical seeds are best. Larger seeds have a reasonable rate of germination compared to small seeds, which tend to be immature.

Classification Of Seeds By Hardness

Although the seeds have taken some time inside storage containers, ripe weeds seeds’ hardness is not compromised. Hard and tough seeds with a smooth shell guarantee a reasonable degree of germination. Also, pay attention to wavy and cracked seeds. They will lose time and energy and will not germinate after planting.

Ways to Germinate Old Cannabis Seeds

Below we will go through 3 popular methods used to germinate old weeds seeds. Remember that we have to do the part by trying to keep the temperature between 26 ° C – 28 ° because that is where the clones seem to season-best. You must also ensure that the seed is kept in a dark area, as light can slow down the germination process.

Method 1 – Scarification

The first method is scarification. This includes causing injury to the seeds’ outer shell to allow water and air to enter, which is essential for germination. For manual scarification, we will need a container or box lined with sandpaper or any coarse material to scar the seeds’ outer surface. Put the seeds in a container or box and shake. After a while, we will find that the roots become dull, and we can see parts of the sources inside the container. Once we scare the outer shell of the cannabis seeds, we can germinate them as usual.

Method 2 – Carbonated water

The second method involves the use of carbonated water with a pH below 7. This slightly acidic solution absorbs the outer layer of the seeds. Put the seeds in a container full of carbonated water and wait for about two hours. The solution loosens the seed coat and allows it to absorb water, which helps germinate.

Method 3 – Mixture of hydrogen peroxide

Method 3 requires that we use a mixture of hydrogen peroxide to soften the seed’s outer skin. It would be best if we were careful when mixing the peroxide solution, as we can burn the seed, and it will never germinate.

To use a mixture of hydrogen peroxide for the germination process, use 1 to 2 drops of 99% hydrogen peroxide in a glass of water. After soaking for 24 hours, the outer shell is softened enough to germinate the seeds.

In addition to chemical and mechanical scarification, we can use other DIY methods to loosen seeds. For example, we can use a small knife to scratch or open the seed coat. We can explore different approaches as long as we do not damage the seed embryo.

  • One part 3% hydrogen peroxide with six parts water.
  • One part 4.5% hydrogen peroxide with nine parts water.
  • One part 6% hydrogen peroxide with 12 parts water.
  • One part 30% hydrogen peroxide with 60 parts water.

Always Use Clean, Fresh Water

Clean and clean water contains oxygen and hydrogen molecules. These are two life-supporting elements necessary for germination. Soaking the seeds for at least 12 hours allows water to enter living cells, a process known as osmosis. Now that the internal conditions promote germination, the semen embryo expands and breaks out of the protective sheath.

Conclusion

Old cannabis seeds sometimes pose a challenge for germination. You can sort ripe seeds, release the hard protective layer by various methods, try new chemical germination enhancers, or use biocatalysts. Similarly, soaking the clean, soft seeds in clean water will push the embryo out of its protective blanket. After trying some of the above processes to germinate the old cannabis seeds, we can be sure to grow healthy and living plants and expect good yields.

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