Blue Dream CBD

New strain 2017

A California marijuana icon with high CBD properties. A unique blend: science and technology + our breeders’ experience and instinct.

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Green Crack CBD

New strain 2017

An elite pedigree hybrid. The new age of therapeutic cannabis.

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25-seed packs

New format!

Large-scale growers that feel 5 o 10 seed-packs fall short can now enjoy a new format of 25 seeds of three of our most popular genetics: Green Crack, Blue Dream and Black D.O.G.

Get your favorites now!
Humboldt Seed Organization

Humboldt Seed Organization

We are a northern Californian cannabis seed bank located in one of the most important cannabis-producing regions in the USA: Humboldt County. Quality is our highest priority and, right from Emerald Triangle, we bring you the best marijuana seeds ever to be created.

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Humboldt Seed Organization quality service


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Next working day shipping

Quality assured

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Feminized Seeds

The cannabis seed bank Humboldt Seed Organization showcases a wide variety of feminized seeds derived from Californian genetics noted for their excellence, heavy-yield, strong effect, and genuine flavours and aromas. We have selected the very best ones for you to enjoy. Don’t miss this opportunity!

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Buy Autoflowering Seeds >

Autoflowering Seeds

Humboldt Seed Organization has developed a collection of autoflowering seeds with elite Californian genetics: a set of innovative seeds that preserve each and every of the old-school traits, providing everyone with the chance to experience amazing sensations regardless of their region or their experience. Enjoy the most exclusive Californian gardens!

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Buy Regular Seeds >

Regular Seeds

Humboldt Seed Organization regular seeds can make you travel to the 60’s California. Our seed bank has succeeded in keeping intact all the excellent traits (potency, flavor, aroma and beauty) of some of the best cannabis seeds ever to be created. Now, we are proud to put them all at your disposal. Don’t wait any longer!

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CBD Seeds

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CBD Seeds

Our collection of high-CBD cannabis seeds, already available in our catalogue, allows a wide variety of users to sustainably consume quality therapeutic marijuana with a moderate effect. At Humboldt Seed Organization, we have combined our experience and the most technologically advanced techniques in order to create a CBD version of some of our best made in the USA genetics. They are incredibly surprising and innovative CBD-rich marijuana seeds that masterfully blend the original traits of the classic Californian genetics and the benefits of CBD.

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Get 1 free seed for
every 30.00 € you spend!

We really thank you for trusting our HSO high-quality seeds and that is why we are treating you to free seeds in all your purchases

New Strains


About Humboldt


History of cultivation in Humboldt

With love from California

Humboldt has a long and rich history of cultivating cannabis. During the late 60’s many people started to migrate north from San Francisco into the deep untouched landscape of the Pacific Northwest. These “free spirited hippies” seeking an alternative and more sustainable means of existence created a “Back to the Land” movement. Living with fewer amenities, minimal material possessions and very distant from the populous California, they cultivated an ideology that would eventually transform an entire region.

Filled with a deeper connection to the Earth, this seclusion provided a safe and explorative space for many to participate in the evolution of modern cannabis. Renown for its quality during more than 40 years, the region has pushed the boundaries of what is possible from both cultivation and regulation for the state and nationwide. Humboldt County has become a place with the highest concentration of progressive organic gardening techniques carried out by some of the best growers and elite genetics in the world today.

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Humboldt Area

The miners of the gold rush in the nineteenth century came and bought land, with the classic American desire to become millionaires at any price. Most did not make it, and the population declined  when gold ended.

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Our mission

Humboldt Seed Organization from Northern California is comprised of a group of breeders possessing some of the best genetics on the planet. Ranging from 15 to 25 years of experience, collectively we have one of the largest libraries in the modern day cannabis community.

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