Seed viability timelines for heirloom versus hybrid seeds?

Heirloom Seed Viability

Heirloom seeds typically remain viable for 5-10 years or more when stored properly in a cool, dry place with minimal light exposure. Factors like temperature, humidity, and seed handling also impact viability. To maximize longevity, store seeds in airtight containers, like glass jars or Mylar bags, at 40°F (4°C) or below.

Hybrid Seed Viability

Hybrid seeds, on the other hand, usually retain viability for 1-5 years, depending on storage conditions. Hybrid seeds are often more sensitive to moisture and temperature fluctuations, making them more prone to degradation. As a result, it is essential to store hybrid seeds in the same conditions as heirloom seeds to maintain their viability.

Seed Storage Techniques

To extend seed viability, use techniques like desiccation or vacuum sealing. Desiccation involves removing moisture from seeds, either by air drying or using a desiccant like silica gel. Vacuum sealing eliminates oxygen, which slows down the degradation process. By combining these methods, you can store seeds for extended periods while maintaining their viability for planting.