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How to Store Seeds Long-Term

Store seeds cool (50-60°F), dark, and dry. Properly stored, most seeds last 3-5 years.

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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

FactorIdeal
Temperature50-60°F
HumidityLow (below 50%)
LightDark
ContainerPaper or glass

How to Store

  1. Dry seeds completely.
  2. Label. Variety + year.
  3. Paper envelope for short-term.
  4. Glass jar + silica for long-term.
  5. 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.

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