How to Store Seeds Long-Term
Store seeds cool (50–60°F), dark, and dry. Use paper envelopes or glass jars with silica packets. Properly stored, most seeds last 3-5 years.
The 3 enemies of seeds: heat, moisture, light.
Storage Conditions
| Factor | Ideal |
|---|---|
| Temperature | 50-60°F |
| Humidity | Low (below 50%) |
| Light | Dark |
| Container | Paper or glass |
How to Store
- Dry seeds completely.
- Label. Variety + year.
- Paper envelope for short-term.
- Glass jar + silica for long-term.
- Cool, dark place.
Do NOT
- Refrigerate unless fully dry
- Freeze (unless long-term, sealed)
- Store in plastic bags
- Expose to light
Common Questions
How long do seeds last? 3-5 years for most. Parsnips and onions: 1-2.
Can I freeze seeds? Yes, if fully dry and sealed. Not for beginners.
What about silica packets? Yes. Absorb moisture.
Do I need a refrigerator? No. Cool, dark closet works.
What if seeds get wet? Dry them immediately.
Can I store seeds in plastic? Not recommended. Traps moisture.