Saving Seeds: The Complete Walkthrough
This guide covers saving seeds, rated a moderate task, typically taking varies by crop.
This is the expanded version of our saving seeds guide, for anyone who wants the full detail rather than just the quick-reference card.
Open-pollinated only
Only open-pollinated (non-hybrid) varieties reliably grow true from saved seed — hybrid (F1) seed often produces plants quite different from the parent, so check what you're growing before saving.
What You'll Need
Worth paying attention to:
- Open-pollinated or heirloom varieties
- Paper envelopes or jars for storage
- A cool, dry, dark storage spot
- Labels with variety name and year
How It's Done
Keep these points in mind:
- 1. Confirm the variety is open-pollinated, not a hybrid.
- 2. Let seed pods, heads, or fruit mature fully on the plant — well past the eating stage for many crops.
- 3. Harvest and dry seed thoroughly before storage — damp seed rots or moulds.
- 4. Clean off chaff and plant debris where practical.
- 5. Store in a labelled envelope or jar somewhere cool, dry, and dark.
Troubleshooting
Worth paying attention to:
- Seed doesn't grow true to type — likely a hybrid variety, or cross-pollination occurred with a related plant nearby.
- Seed rots in storage — wasn't fully dry before storing; ensure thorough drying first.
- Poor germination next season — seed viability varies by crop; some (like onion) decline quickly, others (like tomato) last years.
- Accidental cross-pollination — isolate varieties of the same species if growing more than one for seed.
Timing and Maintenance
Best time — at the natural end of each crop's cycle, once seed is fully mature. Duration — seed viability varies widely — a season for some, many years for others. Maintenance — check stored seed periodically for moisture or pest issues. Signs of success — seed pods rattle when dry, or seed separates easily from fruit and feels hard, not soft.
For the condensed printable version, head to the main guide page linked below.