The OSSI Pledge: You have the freedom to use these OSSI- Pledged seeds in any way you choose. In return, you pledge not to restrict others’ use of these seeds or their derivatives by patents or other means, and to include this Pledge with any transfer of these seeds or their derivatives.

The Open Source Seed Initiative

Today, only a handful of companies account for most of the world’s commercial breeding and seed sales. Increasingly, patenting and restrictive contracts are used to enhance the power and control of these companies over the seeds and the farmers that feed the world.

Patented and protected seeds cannot be saved, replanted, or shared by farmers and gardeners. And because there is no research exemption for patented material, plant breeders at universities and small seed companies cannot use patented seed to create the new crop varieties that should be the foundation of a just and sustainable agriculture.

Inspired by the free and open source software movement that has provided alternatives to proprietary software, OSSI was created to free the seed – to make sure that the genes in at least some seed can never be locked away from use by intellectual property rights.

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Meet the plant breeders, seed companies and others who are working to ensure the Four Seed Freedoms for this and future generations

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You can purchase OSSI Pledged seeds from our Seed Company Partners. Visit our seed catalog for descriptions, photos, and sources for all OSSI-Pledged varieties.

Find Freed Seeds

Are you a plant breeder, seed company, farmer, gardener, or interested eater who wants to join the Open Source Seed Community?

Get Involved


OSSI Pledged Varieties


Plant Breeders


Seed Company Partners


Commitment to
Open Source

Help us Free the Seed!!

We’re working hard to FREE THE SEED! We greatly appreciate your support — it helps us to increase the number OSSI-Pledged varieties that are free of intellectual property restrictions now and into the future.

Your support is critical to keeping our operations running. Even a small donation goes a long way! OSSI is a 501(c)3 non-profit and donations are tax deductible within the guidelines of U.S. law. If you prefer not to donate online, you can always send a check made out to the Open Source Seed Initiative, PO Box 5664, Madison WI 53705 – 0664.

Looking for our European sister organization OpenSourceSeeds?