Toll Free within North America: 855-425-3437

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About Us

Old School Breeders Association, Monster Breeders, and Reeferman Genetics source, select and develop only the finest medicinal cannabis strains.  We provide rare and unique land race qualities for growers seeking the World’s Best Cannabis seeds.

100% Satisfaction Guarantee

All seeds purchased through OSBA are backed by an uncompromised ONE HUNDRED PERCENT SATISFACTION GUARANTEE.

Guaranteed World Delivery

Knowledgeable Service

+90% germination

+60% female seeds

Old School Breeders Association, Monster Breeders, and Reeferman Genetics™ have been delivering on their promise of only the best cannabis seeds to thousands of growers for decades. We are real growers with a passion for developing and breeding only the finest medicinal cannabis genetics. OSBA offers a wide range of genetics, from exotic land race Sativas to Extreme Potency Kush strains to High CBD selections — with a huge offering of excellent creations on everything in between.

Need help selecting a strain?

OSBA prides itself in the collective knowledge we are able to share from our wide ranging strain base. If you would like help selecting a strain that’s right for you or your garden, reach out to us. Call us TOLL FREE from anywhere in North America , from outside N.A. or email us. We can be reached during regular and extended business hours for shipment updates or questions. Your order is shipped out the SAME DAY in most instances. 

Call anytime, Toll-Free within North America at 855-425-3437
International: 1-604-357-4793
Email with any sales related inquiries.

If you are experiencing difficulties on placing or receiving your order, please CLICK HERE

Click here for more information on how to order.

Credit cards accepted on all U.S. orders by calling  855-425-3437

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We encourage all customers to follow the laws set forth by their Country, State/Province and local municipalities.
Any seeds sold will be considered sold FOR NOVELTY PURPOSES ONLY!
We take no responsibility if they are used in any fashion that can be considered illicit or illegal.

We reserve the right to substitute strains ordered with another strain of equal to or greater value

Website Design and Development by Pro Web Marketing

Old School Breeders Association is committed to making this website's content accessible and user friendly to everyone. If you need assistance using our website, we are happy to help you at the points of contact listed on this page! We take your feedback seriously and will consider it as we evaluate ways to accommodate all our customers and our overall accessibility policies. Additionally, while we do not control such vendors, we strongly encourage vendors of third-party digital content to provide content that is accessible and user friendly.

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