Are Frozen Carrot and Watermelon Seeds Still Viable?

Freezing can preserve seeds if they were thoroughly dry and in airtight containers. Carrot seeds (short-lived) may lose vigor; watermelon seeds (longer-lived) often survive well.

Test Before Planting

1. Place 10 seeds on damp paper towel in a plastic bag.
2. Keep at 70–75°F.
3. Count sprouts in 7–10 days (carrots) or 5–7 days (watermelon).
4. >70% germination = good to use.

Best Storage Practice

Cool (40°F), dry, dark, in airtight jars with silica gel. Refrigerator or freezer works if seeds are bone-dry.