As of my last knowledge update in January 2022, I can't provide an exhaustive list of 77 heirloom seed companies specifically. However, I can certainly offer a list of some renowned and reputable heirloom seed companies that were known for offering non-GMO seeds for home gardeners. Please note that the availability and offerings of these companies might have changed after my last update, so I recommend checking their current catalogs and websites for the most accurate information.
- Baker Creek Heirloom Seeds (RareSeeds)
- Seed Savers Exchange
- Southern Exposure Seed Exchange
- Johnny's Selected Seeds
- High Mowing Organic Seeds
- Territorial Seed Company
- Fedco Seeds
- Renee's Garden Seeds
- Adaptive Seeds
- Victory Seeds
- Sow True Seed
- Hudson Valley Seed Company
- Peaceful Valley Farm Supply (GrowOrganic.com)
- Strictly Medicinal Seeds
- Native Seeds/SEARCH
- Clear Creek Seeds
- Sustainable Seed Company
- Irish Eyes Garden Seeds
- Uprising Organic Seeds
- Annie's Heirloom Seeds
Remember, these companies may specialize in heirloom, open-pollinated, and non-GMO seeds, but it's always advisable to confirm the specific details of their seed production methods and non-GMO status before making purchases, especially if your concern is avoiding genetically modified organisms (GMOs). Additionally, availability, inventory, and offerings may vary seasonally and yearly.
It's a good practice to support local seed banks, farmers' markets, or regional seed companies that focus on preserving heirloom varieties native to your area. They might not be on larger lists but could offer unique and well-adapted seeds for your specific climate and region.
