In This Article
Introduction
Seed saving is one of the most rewarding forms of plant propagation, connecting you to generations of gardeners who preserved their favorite varieties. By collecting and storing seeds from your best-performing plants, you create a personalized seed bank adapted to your specific growing conditions.
Why Save Seeds
Seed saving reduces costs, preserves heirloom varieties, and creates plants increasingly adapted to your local climate and soil. Over several generations, saved seeds produce plants that outperform commercially purchased seed in your specific garden.
Open-pollinated and heirloom varieties are the best candidates for seed saving because they produce true-to-type offspring. Hybrid varieties (labeled F1) will not reproduce reliably from saved seed.
How to Collect Seeds
Allow seed pods or fruits to mature fully on the plant before collecting. Seeds should be dry and hard when ready for harvest.
- Tomato seeds need fermentation: scoop pulp into water, let sit 3 days, then rinse and dry
- Bean and pea seeds should stay on the plant until pods are papery dry
- Flower seeds are ready when seed heads turn brown and begin to split open
- Pepper seeds can be scraped from fully ripe (often red) fruits and dried flat
Pro Tip: Label everything immediately. Seeds look remarkably similar once separated from their plants, and unlabeled seeds are a mystery waiting to disappoint.
Drying and Storage
Proper drying is critical for seed viability. Spread seeds in a single layer on paper plates or screens in a well-ventilated area away from direct sunlight. Most seeds need 1 to 2 weeks to dry completely.
Store dried seeds in paper envelopes inside airtight containers with silica gel packets. Keep in a cool, dark place — the refrigerator is ideal for long-term storage.
Key Takeaway: The enemies of seed viability are moisture, heat, and light. Protect against all three and most vegetable seeds will remain viable for 3 to 5 years or longer.
Frequently Asked Questions
How long do saved seeds last?
Most vegetable seeds remain viable for 2 to 5 years when stored properly. Onion and parsnip seeds lose viability fastest (1 to 2 years), while tomato and squash seeds can last 5 or more years.
Can I save seeds from hybrid plants?
You can collect seeds from hybrids, but the resulting plants will not be identical to the parent. For reliable results, save seeds only from open-pollinated and heirloom varieties.
What is the best way to test seed viability?
Place 10 seeds on a moist paper towel in a sealed bag and keep warm for 7 to 14 days. Count how many germinate to determine your germination rate percentage.