How To Produce Cannabis Seeds

How to grow cannabis from seed Wet a paper towel, place your seeds on the towel and gently fold over. Place the moist paper towel with your seeds in a plastic bag, exhale some air into it, seal Breeders have begun specializing in the cultivation of cannabis seeds. Find out more about how breeders pay special attention to the pollination, harvest time, and drying process for the seeds to improve the likelihood of a successful harvest. Make Your Own Cannabis Seeds Whats up Growers?! Today we’re going to talk about how to make your own cannabis seeds at home. Making your own seeds is a fun and interesting process, and you never

How to grow cannabis from seed

Wet a paper towel, place your seeds on the towel and gently fold over. Place the moist paper towel with your seeds in a plastic bag, exhale some air into it, seal it and place it in a warm place. Seeds germinate best at 78°F. Within 72 hours a taproot should appear.

How long will it take to germinate?

Seeds will germinate within 24 to 72 hours. Keep the seeds in a warm, moist (not wet) and dark environment.

What if my seeds don’t germinate?

If your seeds do not germinate after 3-4 days, check to see if the seed is still viable by placing it in a glass of water. If it sinks, it is still viable. If it floats, it will likely not sprout. If viable, try repeating the germination process.

When can I put the seedlings outside?

A seedling should only go outside if the temperature is above 60°F to avoid stunting, and after first acclimating it to direct sunlight. A simple trick is to put the seedling near a sunny window for a couple weeks. Once it has grown a couple layers of serrated leaves, move the plant outside for a few hours during the sunniest part of the day, increasing it by an hour each day for about two weeks. Your seedling should then be strong enough to be moved outside full time. Remember, during the vegetative phase, you want the seedling to receive 18 hours of light, so you may have to supplement your outdoor sunlight.

How do I sex the seedling if it’s not feminized?

Generally, the earliest your seedling will show male traits is 4 weeks. Males tend to grow taller quicker than female plants. Otherwise, you’ll typically be able to sex your seedlings at 45 days. Even when seedlings are feminized, there is a chance a female can show male traits when under stress.

How are feminized seeds created?

There are multiple ways to create feminized seeds by applying different types of natural solutions. The most common is colloidal silver. These solutions are sprayed on mother plants that are created from stable clones. The solutions force the mother plant to grow male pollen sacs. These pollen sacs only contain female chromosomes. That pollen can then be collected or the mother plant allowed to pollinate other female plants. The resulting seeds are feminized up to 99.9%.

When will the plant start flowering?

The flowering phase is when the female plant develops its reproductive anatomy. Then comes trichome development. In cannabis, trichomes actually function as a defense mechanism. During the flowering phase, light is decreased from 18 to 10-12 hours and, most importantly, the plant has uninterrupted darkness. Flowering phase usually lasts 7-9 weeks or longer. Autoflower strains, which don’t need a change in light to begin flowering, can start flowering within 4-6 weeks.

Can I cut clones off my seedling?

Technically, yes. As long as the seedling has multiple side branches or enough internode separation that you can take a cutting without damaging your seedling. Generally you should grow your seedling out for between two weeks to a month before attempting to cut a clone. The cutting should be immediately put in a rooting solution.

What is the average shelf life of a cannabis seed?

The shelf-life of cannabis seeds depends on the robustness of the seed itself. On average, if kept in a cool, dark (not humid) place your seeds can last from six months to a year.

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How can you extend the shelf life of cannabis seeds?

Cannabis seeds can last for years if they are kept in a vacuum sealed container and refrigerated.

How do I tell if my seeds are still viable? Worth growing?

To check if your seed is still viable, drop it into a cup of water. If it sinks, it is still viable. If it floats it will likely not germinate.

Which grow faster, seeds or clones?

Plants from seed will generally grow faster because they will produce a tap root whereas clones produce more lateral roots. However, if you start with a clone, you will have bypassed the germination and sprouting phases, which will cut down on your overall growing time.

Why are some seeds so expensive?

Feminized and autoflower seeds tend to be more expensive than regular seeds. Feminized seeds result in female plants that produce the desired flower or bud. Autoflower seeds are not dependent on changes in light patterns to flower and have a shorter growth cycle, making them easier for beginners.

What seed strains are best for humid vs dry climates?

Sativa or sativa-dominant hybrid strains, overall, are best for warm and humid situations. Dry climates are simpler to grow in, however take care to keep your soil watered so it doesn’t dry out or get too hot that it bakes your roots.

KindPeoples is now offering our full seed menu at both locations. Check our Soquel Ave. Menu and Ocean Street Menu for our latest inventory.

The Importance of Collecting and Harvesting Cannabis Seeds

T here was a time in our not-too-recent history when a sack of weed almost always included seeds. However, as cannabis cultivation evolved, so did the demand for sensimilla, or high-quality, seedless cannabis. Breeders not only began developing their own customized strains, they also started specializing in the cultivation of very special cannabis seeds. These seeds are used in both the breeding process and the wide-spread distribution of the carefully created strain itself.

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  • Ultimate Cannabis Seed Feminizer: Colloidal Silver

The Role of Seeds in the Breeding Process

The process of breeding the perfect strain requires a controlled production of seeds. Breeders must force their favorite plants to produce pollen and then use it to pollinate other favorite strains, thus creating “cross-breeds” of their two selected parents. Note that this process is not haphazard like the seeds one might find in a poorly-controlled outside marijuana grow – cannabis seed cultivation is a precise process that requires controlled, sanitary environments that are thoroughly sealed to prevent outside dander from getting in.

The plants can “veg” here, or continue their vegetative growth phase if trying to increase their size before seed production begins, but it’s not necessary. Once the plants are large enough, they are put into a flowering light cycle of 12 hours light and 12 hours of complete darkness.

Within a few weeks, the male will produce pollen sacks which will soon burst and get carried off into the air to pollinate the females. The females will now produce seeds which may continue to be used in the breeding process or harvested and sold to the public.

For the purpose of seed production, only around 20 females are recommended per male. However, a single male can realistically pollinate hundreds of females, hence the importance of a tightly sealed environment during the seed production process.

Natural Cannabis Seed Production

Cannabis is an amazingly resilient plant and doesn’t require male pollination to produce seeds. Evolution has bestowed upon the cannabis plant an amazing ability to self-pollinate when there are no males around to do it for her. Whether stressed or old (for example, a female cannabis plant that is not harvested before her prime), if a female senses an environment that is not conducive to long-term growth, she will produce seeds in hopes that her legacy will continue.

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This is how feminized cannabis seeds are produced. Breeders will carefully stress a healthy female plant to “trick” her into thinking her life or safety is in danger.

One common method is to stress the female by applying solutions like colloidal silver or silver nitrate generously onto the leaves when she first enters the flower light cycle. Within 3-4 weeks, male sex organs will appear on the nodes of the female plant. Please note, applying these stress-inducing solutions to plants renders them unsmokable. The particulate cannot be washed off thoroughly because it settles deep into the surface of the plant. This method is for seed production only.

Another method is to simply let a healthy female age. If she grows past maturation, she will produce male “banana” pollen sacks without any male chromosomes. Though she may look like a hermaphroditic plant at this point (one containing the chromosomes of both male and female), the pollen she produces will contain only XX chromosomes and therefore cannot pass the Y (male) chromosome down to its heirs. Pollen collected in this way is then used to pollinate another female which will then produce female-only seeds.

How to Collect Cannabis Seeds

Though many grow ops aim to do away with seeds to grow fine sensimilla instead, sometimes breeders want seeds. Whether to grow their own crops or to sell to a demanding public, cannabis seed cultivators have their goals set on producing healthy, happy seeds in lieu of big, beautiful buds.

Seed crops are harvested when the seeds are plump and dark, often with a tiger stripe appearance (around six to eight weeks into flowering).

After harvesting, the bud is dried and the seeds are collected. Small-scale seed collection is done by simply crumbling the cannabis flower and collecting the seeds that fall out (this video by Johnnys Green Extractions offers a clever way to separate seeds from flower using an old vinyl record cover).

Commercial seed collection usually involves special machines that crush dried flower then pass the trim and seeds into separate bins. After seeds are collected, they’re stored in opaque, air-tight containers to prevent them from rotting or sprouting prematurely.

Conclusion

Though cannabis flower is usually cultivated to be seedless, sometimes the seeds are the whole point. Breeders pay special attention to the pollination, harvest time, and drying process when growing cannabis specifically for the seeds to improve the likelihood of a successful harvest.

Frequently Asked Questions

How are Feminized Seeds Made?

Feminized seeds are made by inducing a female plant to produce seeds without being pollinated by a male. These resulting seeds will not contain a male Y chromosome, only retaining the two X chromosomes from the female plant, and thus all of the resulting seeds will be female. This process can be done by stressing the plant, altering it with chemicals, or allowing it to grow past its harvesting time.

How Many Plants Can a Male Cannabis Plant Pollinate?

For professional production, it is recommended to pollinate about 20 female plants per male plant, but this is done to ensure tight oversight and quality control. In the wild, a single male plant can pollinate hundreds of female cannabis plants.

Can You Smoke Cannabis That Has Been Treated with Colloidal Silver?

No, colloidal silver is only used on plants raised for seeding purposes, it makes the plants that it is sprayed on unsmokable.

How are Strains Crossbred?

Cannabis breeders create crossbreeds by using the pollen of one strain to pollenate seeds with another strain. The resulting seeds will have genetics from both parents. These new plants are selected by their desirable traits and then stabilized through further breeding, typically using the genetics of their parent strains.

Have you ever harvested cannabis seeds? Share your experiences in the comments below!

Author

Abby is a writer and founder of Cannabis Content, a marketplace designed to connect cannabis writers and creatives with businesses in the industry. She has been a professional cannabis writer since 2014 and regularly contributes to publications such as PotGuide and M&F Talent. She is also the Content Director at Fortuna Hemp, America’s leading feminized hemp seed bank. Follow Abby on Facebook, Twitter, and Linkedin.

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Make Your Own Cannabis Seeds

Whats up Growers?! Today we’re going to talk about how to make your own cannabis seeds at home. Making your own seeds is a fun and interesting process, and you never know what kind of exciting new stuff you’ll discover!

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If you or someone you know is looking to start a cannabis grow, I would love to help! I created GrowersLove.com to help new growers get started on the right foot! GrowersLove has Guides, Gear and MORE to help making growing cannabis at home FUN and EASY! Check it out today and tell your friends! Lets get EVERYONE GROWING!

Lets make some seeds!

Here is a few things I found while making my own seeds. What will YOU find?

LEFT: Male Go Time plant, selected mostly for his smell. He was a stinky resinous fella. RIGHT: Jazz bud. I grew this awesome Jazz plant for several runs, so I had a feeling she would make a good parent.

Plant structure is another important thing to consider when choosing parent plants. The plant on the left was great, but was also really stretchy and tall. The plant on the right stayed short and had really tight node spacing. Either of these could potentially make great parents, it just depends on your goals.

LEFT: Male plant in early flower. Not dropping pollen yet. RIGHT: Male plant a little further along. Flowers have opened and have begun dropping pollen.

LEFT: male plant around day 10-14, about to drop pollen. RIGHT: Same plant around day 25. Flowers are opening up and pollen is dropping. Now we can collect a sample.

I use a glass plate for collecting pollen. Its important to allow the pollen to air dry and remove all the male flowers and contaminates before storing.

LEFT: contaminates removed from pollen with a strainer. RIGHT: cleaned and dried pollen sample ready to be stored.

Storing pollen in small vials with tall sides can help limit pollen spread while you are working with it. Store samples in multiple small containers so you don’t have all your “eggs in one basket”. That way if one vial goes bad, you don’t lose your whole collection.

Female plants in early flower, ready to receive pollen. Each white hair is reaching out in the hopes of catching some pollen.

Turn off all your fans, then use a cotton swab or small paintbrush to carefully apply small amounts of pollen to each flower site that you want to produce seeds. Allow the pollen to settle for 24-48 hours, then clean your plants off with a gentle water spray and turn your fans back on.

Pregnant bud in late flower. That’s a seed falling out the side!

Label your seeds and keep things organized!

You can make a few seeds, or a lot of seeds. This jar contains an estimated 4,000+ seeds! I am well stocked for the coming apocalypse.

Expect to see a lot of variety in your seeds. Here’s 4 very different plants I found while hunting through some seeds I made. They were all great plants, but very different! It will take more breeding work to isolate the traits we are after and ensure they are passed on to future generations.

SRSLY! Thank you Patreons and thank you DGC!

If you or someone you care about wants to start a cannabis grow, I would love to help! If you’re a new grower looking to get started, or an experienced grower looking to expand, Growers Love is here to help make growing fun and easy! Founded by Soup. Growers Love, I’m not just the president, I’m also a member.