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S1 Cannabis Seeds

S1 feminized cannabis seeds are an excellent choice for breeders, cultivators, and collectors alike. These seeds allow growers to preserve rare, clone-only strains and discover new phenotypes of their favorite cultivars.

The term “S1” means “first selfed generation.” Selfing is the process of crossing a plant to itself to make feminized seeds. This can be accomplished by using an ethylene-blocking spray such as colloidal silver to cause the mother plant to form pollen sacs. The pollen is then used to pollinate either the original mother plant or a clone of it.

When done correctly, selfing produces 100 percent feminized cannabis seeds with the same genotype as the mother plant. This allows growers to discover plants that are nearly identical to the original clone. It also serves to open the gene pool, producing rare phenotypes with recessive traits. When growing S1 seeds, you may even find some phenotypes that are better than the original mother.

For breeders, selfing is a quick, easy, and effective way to stabilize a strain. Rather than selectively breeding males and females for many generations, they can create a homozygous strain in just a few generations of selfing.

At Greenpoint Seeds, we offer a variety of S1 cannabis seeds bred from elite, clone-only cultivars such as Animal Cookies, Purple Punch, and Gorilla Glue #4. Shop our feminized S1 seeds today.

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Customer Reviews

Beep says:

5

As always 3/3 germed, and growing.

2024-06-23 15:02:18 June 23, 2024

Anonymous says:

5

Speaks for itself

2024-06-23 10:53:03 June 23, 2024

Anonymous says:

5

Fast shipping and unbeatable service! Can’t go wrong with GPS!

2024-06-23 03:35:43 June 23, 2024

James J. says:

5

As always, the best!!

2024-06-22 21:01:12 June 22, 2024

Anonymous says:

5

This is a review for a different strain.. purple chem

2024-06-21 16:14:44 June 21, 2024

Isaiah M. says:

5

Gg

2024-06-20 21:56:49 June 20, 2024

Corinne S. says:

5

CitySlicker from gu... There's one major problem with this strain.. Choosing a keeper!!! Has been on of the hardest culls I've ever had to do started with 22 seeds, 21 popped, a few died off at the beginning (my fault, equipment malfunction) I ended up with 14 healthy plants, 6 males (of which 4 could've been studs, STINKY STINKY in veg i could smell them from outside thats after 2 carbon filters) then you had the female plants... WOW.. just wow.. excellent colours, frost and sturdy plant/flower structure.. and most of all it has an epic high especially the more stardawg leaning phenos, giving the gelato the potency it deserves... I'm not really a fan of anything related to cookie but getting the stardawg in there, really helped bring in some potency and legs to the epic high.. The vigour, the structure and ease of growth, on top of fire potent flower, epic yeilds, 10/10 bag appeal and the bonus of a really pretty grow room come harvest time makes city slicker a total winner in anyone's book.. I can't wait to get into the f2s.. oh my!! grown in totally natural living dirt.. More Nd much better pics and videos to follow

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2024-06-20 09:34:03 June 20, 2024

Justin F. says:

5

Was fast came about a week after I ordered always great customer service

2024-06-19 20:45:55 June 19, 2024

Ann B. says:

5

Great website and delivery is fast even when using 🐌 mail!

2024-06-17 20:00:24 June 17, 2024

Brian C. says:

5

Easy site to navigate. Called with questions and the customer service was excellent. Received my order well before I expected to

2024-06-17 14:39:10 June 17, 2024

Tykwan C. says:

5

Easy all around seeds came extremely fast always great service with greenpoint

2024-06-16 14:10:32 June 16, 2024

Michael Durkee says:

5

Fast delivery and quality seeds I’m very pleased with this company 😊

2024-06-16 13:55:34 June 16, 2024

Anonymous says:

5

Great service.

2024-06-16 05:38:47 June 16, 2024

Anonymous says:

4

Grew out with very frosty nugs, but they stretched towards the end and were quite small. Maybe my issue. High quality and great smoke/flavor

2024-06-16 05:30:47 June 16, 2024

Anonymous says:

5

this is the only seller i buy from great deals and fast shipping.thanks

2024-06-15 13:18:55 June 15, 2024