Humboldt Seed Company
A California seed company founded in 2001 by a breeder with a background in fisheries conservation, known for sorting through thousands of plants to find the few worth keeping.
01Beginnings
Nathaniel Pennington founded Humboldt Seed Company in 2001 in Northern California's Emerald Triangle1. He had been breeding cannabis since 1999, so the company came about two years after he started2.
Before cannabis, Pennington worked in fisheries conservation, including with Klamath Riverkeeper and the Salmon River Restoration Council2. The sources do not say how that background shaped his breeding.
The North Coast Journal describes visiting the company's growing site near Orleans, a town above the Klamath River at the far eastern edge of Humboldt County2. The article does not give the year of that visit.
02The story
One of the best-known stories goes back to 2008, when Pennington crossed a potent purple strain with The Raz. One of the offspring smelled like a blueberry muffin, and it became the strain Blueberry Muffin2. The article says the strain took off and is now grown around the world2. Pennington also licensed it. He adapted an old licensing agreement for Honeycrisp apples so that he would get a small fee for each clone sold from California dispensaries2.
Not every success started strong. Pineapple Upside Down Cake came from a small phenotype hunt as one weak plant. Pennington gave it to HendRx, who turned it into thousands of clones2. The company keeps a database of phenotypes covering thousands of individual plants, along with a stock of seeds or living plants1. It began collecting samples in 2018 through phenotype hunts run with California growers1. A larger hunt covered about 10,000 plants, and 99.5 percent of them were expected to be thrown out. The article does not give a year2.
In 2022 the company became the first to register autoflowering cannabis in Colombia1. That year it also made what the source calls the first scratch-and-sniff cannabis packaging, which used terpenes matching the product inside1. In July 2025 it took part in the Cannabis Experience exhibit at the California State Fair. Visitors aged 21 and over could buy seed packets for one penny, and the company provided more than 15,000 seeds1.
03Culture and community
The penny-seed event had a purpose beyond the price. Organizers called it one of the largest legal public seed giveaways in U.S. history. Its goals were to encourage home growing and to reduce the stigma around cannabis1.
Pennington works with HendRx Farms, a clone nursery in McKinleyville, and with Dark Heart Nursery in the Bay Area2. At the hunts, judges carry binders of scoring sheets. They rate plants from one to 10 on traits such as scent, flower color, vigor and disease resistance2. Pennington says the phenotype hunt is one part of a three-part method, together with chemotype and genotype testing2. His reminder to himself is that breeding is creative work and that he should not assume the best genetics already exist2. Daniel Hendricks of HendRx calls Humboldt County the "Silicon Valley of cannabis"2.
Outside California, the official site describes its pheno hunts as expeditions. One was a landrace preservation project and pheno hunt with a Rastafari church in Antigua3. The site says the One Love strain, inspired by Bob Marley, was developed with the Rastafarian community and Dr. Machel Emanuel of the Life Science Cannabis Research Group3.
04Where things stand now
As of the official site's header date of October 28, 2026, the homepage promotes a 2026 strain lineup and a Bob Marley Collection3. That is the most recent information in the sources reviewed.
The sources say little else about the company today. They do not cover its size, ownership or staff, and they do not mention any controversies. Awards and the strain catalog are added separately from the cannalib database.
05What comes next
The sources reviewed do not describe any announced company plans. The only forward-looking step on record comes from the phenotype hunt: the roughly 50 plants kept were to be cloned, bred and eventually used to make seed stock2. The article is undated, so it is not clear how far that work has progressed.
Sources
- Humboldt Seed Company (Wikipedia)
- Finding A Unicorn: Humboldt Growers Collaborate in a Quest to Find Superior Cannabis Genetics (North Coast Journal)
- Buy Cannabis Seeds Online | Humboldt Seed Company | U.S.A. (official site)
Written from the sources above and checked on 2026-10-29. Spot an error? Tell us on the contact page.