Pumpkin seeds keep for 4 years.
image by ardelfin: morguefile
Garden seeds keep from one to five years depending on the storage conditions and specific plant. Keep seeds in a cool, dry area. Use within one year for best results.
About this Author
Nannette Richford is an avid gardener, teacher and nature enthusiast with more than four years' experience in online writing. Richford holds a Bachelor of Science in secondary education from the University of Maine Orono and certifications in teaching 7-12 English, K-8 General Elementary and Birth to age 5.