Seed Saving Guide
Learn how to collect, clean, dry, and store seeds from vegetables, herbs, and flowers. Start with dependable self-pollinating crops, then build your skills one harvest at a time.
Good seed saving starts with knowing your plants.
Open-pollinated varieties can remain true to type when properly isolated, while seed from hybrids may produce an unpredictable next generation. Also note the life cycle: annuals flower and set seed in one season, biennials such as carrots and onions need a second season, and perennials return for many years.
Choose open-pollinated seed
Check the seed packet or product description before selecting plants for seed production.
Prevent unwanted crossing
Use distance, timing, barriers, or hand pollination when related varieties can cross.
Save from healthy plants
Select several vigorous, true-to-type plants so the next generation retains useful diversity.
The seed-saving process
The exact harvest and cleaning method changes by crop, but the foundation stays the same.
Plan
Choose the variety, identify crossing risks, and reserve enough healthy plants.
Observe
Remove off-type or unhealthy plants before they flower and exchange pollen.
Let seeds mature
Seed maturity often occurs later than eating maturity. Leave selected fruits or pods longer.
Clean and dry
Use the dry or wet method below, then dry seed thoroughly out of direct sun.
Label and store
Record crop, variety, and year. Store cool, dark, and dry until planting time.
What would you like to save?
| Crop | Difficulty | Pollination | Harvest seed when | Cleaning method | Important note |
|---|
Dry seeds and wet seeds
Dry-seeded crops
Best for beans, peas, lettuce, brassicas, carrots, herbs, and flowers.
- Allow pods or seed heads to become fully mature and dry when weather permits.
- Cut or collect into a paper bag before seed begins to scatter.
- Thresh gently, then separate seed from chaff with screens or light airflow.
- Spread seed in a thin layer and finish drying indoors.
Wet-seeded crops
Best for tomatoes, peppers, cucumbers, melons, squash, and eggplant.
- Harvest fully mature or overripe fruit from selected healthy plants.
- Remove seed from the flesh; ferment tomato seed briefly to remove its gel coating.
- Rinse clean in a fine strainer and remove lightweight or damaged seed.
- Dry in a single layer on a nonstick surface, stirring regularly.
Cool, dark, and dry.
Moisture and heat shorten seed life. Package only fully dry seed, then keep it in a stable location away from sunlight and temperature swings.
- Label the crop, variety, and harvest year
- Use paper envelopes for organization
- Place envelopes in an airtight container once dry
- Add a food-safe desiccant in humid conditions
- Keep stored seed away from heat and direct light
- Test older seed before planting a full row
Start with seed worth saving.
Explore heirloom and open-pollinated varieties for your next garden.