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Showing 1–8 of 41 results
Old School SkunkOld Widow 90’sOldman's Silver Haze 98Blueberry ProjectsOriginal OSG BreedingLimited Releases
Original breeding · preservation · limited releases
Old School Genetics Seeds
Old School Genetics is the independent breeding project led by Oldman Green, rooted in Barcelona and shaped by more than 25 years of selection, genetic preservation and original breeding. OSG preserves and develops classic cannabis genetics connected to Skunk, Widow, Haze and Blueberry families, alongside documented breeding collaborations and limited releases. The official OSG catalogue brings together authentic Old School Genetics seeds, preserved classics and original breeding projects, each presented with clear lineage and breeding context.
Curated and reviewed by Oldman Green · Updated 22 September 2026
Original breedingOSG-developed lines presented separately from third-party releases.
Genetic preservationClassic references maintained through selection and continuity.
Authentic OSG packsProduct pages identify format, price and current availability.
Documented originsLineage, provenance and breeding context are presented clearly throughout the OSG catalogue.
Current OSG releases
Latest OSG Drop
Discover the latest Old School Genetics releases, selected by Oldman Green and offered in limited quantities. Each product page presents its lineage, breeding context, pack details and current availability.
Selected OSG releases
Old School Genetics Available Now
A curated selection of available OSG genetics and breeding collaborations, connecting original Old School Genetics work with projects developed alongside respected breeders. Explore the complete selection to discover their lineages and breeding context.
Old Widow 90'S
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OSG Cheese
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Old Red Sour
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Blue Grape Fuel
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Glueberriez
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Genetic foundations
Signature Genetic Lines
Four key routes into the breeding work of Old School Genetics: preserved classics, original OSG lines, carefully selected outcrosses and documented collaborations. Each reference helps explain how Oldman Green connects historic genetics with contemporary breeding.
Heritage line
Old School Skunk
A central preservation and breeding reference represented by collector packs and current pheno selections.
Explore Old School Skunk → Classic OSG releaseOld Widow 90’s
A live catalogue route to one of the recognised classic references in the OSG collection.
Explore Old Widow 90’s → Archive reference · sold outOldman's Silver Haze 98
A historical Haze reference retained for editorial and genetic context, without implying availability.
Read the archive → Blueberry projectsBlueberry Projects
Blue Grape Fuel is a current OSG and Karma Genetics collaboration rooted in documented Blueberry 80’s heritage.
Explore Blue Grape Fuel →Continuity over novelty
Classic Cannabis Genetics and Preservation
At Old School Genetics, preserving classic cannabis genetics is active breeding, not nostalgia. Oldman Green maintains valuable references connected to Skunk, Widow, Haze and Blueberry families, evaluates them through selection and uses them to create new work without losing the identity, history or genetic context that made them important.
The official OSG catalogue brings together original breeding, selected collaborations and important historical releases. Available seeds are presented alongside a clearly identified archive, preserving the continuity between current work and the genetics that shaped it.
Classic referencesSkunk, Widow, Haze and Blueberry routes remain visible as distinct editorial paths.
Documented contextProduct and line claims are tied to existing catalogue records.
Clear availabilityEditorial importance never overrides live stock status.
Focused releasesThe page prioritises breeding identity over catalogue volume.
Breeder and editorial review
Oldman Green and the OSG Story
Oldman Green leads the breeding direction of Old School Genetics and reviews the historical and genetic information published on this page. Across more than 25 years, OSG has connected practical preservation work with original releases and documented collaborations.
This page is dedicated exclusively to Old School Genetics: original breeding by Oldman Green, preserved classics and documented collaborations. Seed banks distributed by OSG are presented separately in the wider multibreeder Seed Shop, keeping the identity of OSG's own breeding work clear.
Genetic and historical information reviewed by Oldman Green.
Old School GeneticsThe principal breeding entity and brand presented on this page.
Oldman GreenBreeder, project lead and editorial reviewer.
25+ yearsBreeding, selection and genetic preservation led by Oldman Green.
Seed Shop distinctionThe multibreeder shop remains a separate discovery hub.
Editorial selection
Essential Old School Cannabis Strains
Selected strains that represent the breadth of Old School Genetics, from foundational classics to original OSG breeding and documented collaborations. Each reference is clearly identified as currently available or part of the historical archive.
Available
Old School Skunk
Collector pack and primary route into the current Old School Skunk catalogue.
View product → AvailableOld Widow 90’s
A preserved OSG classic presented with clear lineage and current availability.
View product → Archive · sold outOldman's Silver Haze 98
Preserved as a historical reference and not presented as available.
Read archive → AvailableBlue Grape Fuel
An available OSG and Karma Genetics collaboration with documented Blueberry 80’s heritage.
View product → Available · collaborationOld Gas Station
A breeding collaboration connecting Old School Genetics and Karma Genetics.
View product → AvailableOSG Cheese
A current catalogue reference within the Oldies Never Die collection.
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Historical product archive
Sold Out Genetic Archive
Selected sold-out Old School Genetics releases preserved as historical and genetic references. These archive pages document lineages, breeding context and past releases without presenting them as currently available.
Oldman's Silver Haze 98
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Banana & Cheese
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Official OSG catalogueBrowse the current catalogue
Full Old School Genetics Catalogue
Explore the complete Old School Genetics seed catalogue, including current releases, preserved classics and documented collaborations. Product pages show current price, pack format and availability, together with the genetic background of each release.
Explore all Old School Genetics releases
Collections and collaborations
Explore OSG Genetic Collections
Explore focused OSG collections to follow the genetic families, preservation projects and breeding directions that define the catalogue.
Collection
Oldies Never Die
Classic OSG references and heritage-led releases.
Explore collection → CollaborationKarma Genetics Breeding Collab
Products connecting the breeding work of OSG and Karma Genetics.
Explore collaboration → CollaborationCoast to Coast Breeding Collab
A dedicated route through the Coast to Coast project.
Explore collaboration → Limited collectionKosher Kush Hybrids LTD
Current products grouped around the Kosher Kush hybrid series.
Explore collection → Limited collectionBanoffee Pie LTD
Available and archived products from the Banoffee Pie collection.
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Old School Genetics FAQ
Old School Genetics Seeds FAQ
What is Old School Genetics?
Old School Genetics is the independent breeding project led by Oldman Green. It brings together original OSG breeding, preserved classic references, selected collaborations and limited releases developed across more than 25 years.
Who is Oldman Green?
Oldman Green leads the breeding direction of Old School Genetics and reviews the historical and genetic information published on this page.
Which genetic lines are central to the OSG catalogue?
The central editorial routes are Old School Skunk, Old Widow 90’s, Oldman's Silver Haze 98 and Blueberry-related projects. Each line is treated separately so the catalogue does not blur distinct breeding histories.
What makes a cannabis strain “old school”?
An old school cannabis strain is defined by more than age. It should have a recognisable genetic background, documented provenance and preserved traits that remain identifiable through selection and breeding.
Which classic cannabis genetic families does Old School Genetics preserve?
The principal classic routes presented by OSG connect to Skunk, Widow, Haze and Blueberry families. Each project is documented separately to preserve its lineage, breeding context and historical identity.
How does Oldman Green preserve and document classic genetics?
Oldman Green works through selection, maintenance of valuable references, documented outcrosses and continuity across generations. Archive pages preserve the history of sold-out releases, while current product pages identify lineage and availability.
Are Old School Genetics packs authentic?
Products identified as Old School Genetics releases are original OSG packs. Each product page presents the seed format, current price, availability and relevant genetic information.
Why do sold-out strains remain visible?
Sold-out strains remain visible as clearly labelled archive references because they document the OSG catalogue and its genetic history. They are not presented as available to buy.
Where can I see every Old School Genetics product?
The full Old School Genetics catalogue presents current releases and archive references with prices, stock status, ordering and paginated product links.
What is the difference between the Old School Genetics catalogue and the Seed Shop?
The Old School Genetics catalogue is dedicated to OSG breeding, named collaborations and archived releases. The Seed Shop is the wider multibreeder discovery hub for OSG and selected independent seed banks.
Does the catalogue show live stock and prices?
Yes. Each product page shows the current price, pack format and availability. Confirm these details on the product page before purchase.