Shoplist Worldwide
Order Info
Contact us
Awarded Cannabis Seeds since 1994
Serious Seeds is the home of the classic award winning cannabis strains, the AK-47 strain, the Bubble Gum strain, the Chronic strain, the Kali Mist strain, the White Russian strain, the Serious 6 strain, the Serious Happiness strain, the Serious Kush strain, the Warlock strain and many more.
All of those varieties have won at least one award, but usually (many) more.
Until December 2022 the Serious’s strains have received more than 100 awards (that we know of!) in different Cannabis competitions around the world.
Our Latest Strains
Seed Categories
Feminized Seeds
Unlike the regular cannabis seeds, which have 50%-50% of chance of producing a female or male plant, feminized marijuana seeds are specially designed to produce only female plants.
Autoflowering Seeds
With quick results in just 70-80 days and no light cycle management needed, Autoflowering marijuana seeds are perfect if you want a fast grow and/or if you are a beginner.
Regular Seeds
Regular cannabis seeds can result in both male and female plants, which is essential for experienced breeders wanting to create their own seeds or hybrids.
CBD Cannabis Seeds
CBD is a cannabinoid that has almost the same medical properties as THC, but without the psychoactive effect (high/stoned) of THC. Therefore it is suitable as medicine for patients who do not want these effect.
Easy to grow Cannabis Seeds
Our serious selection of cannabis seeds for beginners, all of which are resistant to the most common mistakes often made when growing marijuana seeds for the first time.
SeriousLimited Seeds
Before we release a new variety, it gets thoroughly tested by Serious growers. Simon, the owner of Serious Seeds, wants to ONLY release a strain when he is totally satisfied with its unique properties, next to stability and uniformity.
Seriously CBD Seeds
Serious Seeds has been supporting the medical marijuana movement since the very beginning. We worked in order to develop a variety with a reliable CBD content (=high CBD content in ALL plants) and a 1:1 ratio of THC:CBD.
Pick & Mix Seeds
Choose 2 or 3 seeds of different varieties and MIX them in one package. In other words: PICK the strains you want, and MIX them together in one package. First we called this "CUSTOMIZED", now we call it PICK & MIX.
Seeds for novices
Our serious selection of cannabis seeds for beginners, all of which are resistant to the most common mistakes.
Why only 19 strains?
When we improve a strain, we sell the improved product with the same name. Having sixty kinds that are essentially variations on five themes is not our goal.
Guaranteed Quality
We GUARANTEE the quality of our seeds, if any quality-problems occur we will send you a new FREE package of the strain you bought.
FAQs
- First of all, we want to keep quality high and only release a seed strain once it is stable and consistent.
- In addition, our company has improved our existing strains through good selections.
- When we improve a strain, we sell the improved product with the same name.
- Some other companies give these improvements new names and consider them to be "new" strains.
- Having sixty kinds that are essentially variations on five themes is not our goal.
- Working this way, it takes a long time to produce a new strain which meets our quality standards to rank next to the existing strains of Serious Seeds.
- Sorry to all the people who constantly ask for new names, but we are working seriously on new strains, not on making up new names.
- As with all of our other products, when we have something "serious", we will release it.
- It is impossible to know anything about the end product by looking at the seed.
- The first measure of our quality is the huge number of awards in different cannabis competitions around the world that our eighteen strains have earned since they were created → 102 awards in total until May 2021!!!
- The best known cannabis contest is the High Times Cannabis Cup, held annually in Amsterdam and judging dozens of entries. Since 1994 we have received 25 awards from the judges in this event. The press is enthusiastic about our products, as are our thousands of repeat customers.
- Secondly, we GUARANTEE the quality of our seeds, if any quality-problems occur we will send you a new FREE package of the strain you bought.
- We are the ONLY company to individually number our packages, so every seed can be followed from production to the point-of-sale in the shop.
- KEEP THE ORIGINAL PACKAGE WITH THE INDIVIDUAL NUMBER ON IT after you buy the seeds, if any quality-problems occur and we can identify the pack as an original Serious Seeds pack, we will send you a new package for FREE!
Each country has its own specific laws concerning purchase and growth of Cannabis seeds. Serious Seeds does not want anyone to act in conflict with any laws applicable within the country he or she is living in. Every person buying these seeds is expected to act accordingly. Since Cannabis is very beneficial to humankind, Serious Seeds are sold as souvenir, to preserve valuable genetics in case laws change again.
We ship worldwide to ALL countries.
We ship worldwide to ALL countries.
- Serious Seeds is one of the longest established seed-companies in Holland, concentrating on the production of high-quality, stable and consistent varieties of cannabis seeds.
- The production of top quality cannabis-strains for medical and recreational purposes are our highest priority.
- Independent and reliable lab tests (over 20 years of experience in this field) have shown that the different Serious Seeds strains produce the strongest plants (highest in THC-content) available on the market today, averaging between 18-22% THC.
- These tests were done on plants grown from the same seeds as the customer receives.
- For most of our strains, stable plants are crossed to produce the vigorous F1-hybrids that we sell.
- You can be assured of good germination and uniform plants, we even guarantee the germination of our seeds.
- Serious Seeds are produced in small numbers and are always fresh and hand selected. We test every batch of seeds for germination rate and uniformity of the resulting plants before releasing it.
- We are the ONLY company to individually number our packages, so every seed can be followed from production to the point-of-sale in the shop.
- KEEP THE ORIGINAL PACKAGE WITH THE INDIVIDUAL NUMBER ON IT after you buy the seeds, if any quality-problems occur and we can identify the pack as an original Serious Seeds pack, we will send you a new package for FREE!
- All strains developed by Serious Seeds were bred to be stable, homogenous genetics, which are easy to grow for everybody from novice to expert.
- All seeds are produced fresh in small batches and handselected for quality.
- We GUARANTEE the quality and germination of our seeds, if any quality-problems occur we will send you a new FREE package of the strain you bought.
- We are the ONLY company to individually number our packages, so every seed can be followed from production to the point-of-sale in the shop.
- KEEP THE ORIGINAL PACKAGE WITH THE INDIVIDUAL NUMBER ON IT after you buy the seeds, if any quality-problems occur and we can identify the pack as an original Serious Seeds pack, we will send you a new package for FREE!
• Serious Seeds are always packed per 11 regular seeds or 6 feminized seeds in a transparent and airtight tube.
• The plastic tube is glued or taped to a booklet.
• The booklet has the Serious Seeds logo, the strain name and a symbol for feminized or regular on the frontside.
• The inside of the booklet features a picture of the strain on the right side and an informational text on the left side.
• The backside of the booklet features a disclaimer about cannabis-genetics, the Serious Seeds company information and most importantly the serial-number of the package.
• All packages are individually numbered
• The serial-number enables us to identify the pack as Serious Seeds' genetics and tells us when it was produced and where it was sold to.
• DO NOT THROW AWAY THE PACKAGE!!!
• Keep the package for future reference in case a quality problem occurs with the seeds.
• We GUARANTEE THE QUALITY of our seeds and we issue a FREE REPLACEMENT for seeds which do NOT GERMINATE!!!
• We ONLY will issue a replacement, if the customers provides us with the serial-number of the pack he has a problem with.
• The plastic tube is glued or taped to a booklet.
• The booklet has the Serious Seeds logo, the strain name and a symbol for feminized or regular on the frontside.
• The inside of the booklet features a picture of the strain on the right side and an informational text on the left side.
• The backside of the booklet features a disclaimer about cannabis-genetics, the Serious Seeds company information and most importantly the serial-number of the package.
• All packages are individually numbered
• The serial-number enables us to identify the pack as Serious Seeds' genetics and tells us when it was produced and where it was sold to.
• DO NOT THROW AWAY THE PACKAGE!!!
• Keep the package for future reference in case a quality problem occurs with the seeds.
• We GUARANTEE THE QUALITY of our seeds and we issue a FREE REPLACEMENT for seeds which do NOT GERMINATE!!!
• We ONLY will issue a replacement, if the customers provides us with the serial-number of the pack he has a problem with.