How to Harvest Cucumber Seeds


Your favorite vegetable varieties may not be available from seed catalogs and nurseries each year, as companies change their stock to fit current gardening fashions. Collecting and saving your own vegetable seeds solves this problem and saves money. If you plan to save seeds, only plant one variety of cucumber in your garden, as cucumbers easily cross-pollinate with other varieties and related plants.

Step 1

Allow two or more cucumbers on the healthiest plant tp mature fully on the vine. Pick once the skin begins to yellow.

Step 2

Slice open the cucumber lengthwise. Scoop out the seeds and the gel-like pulp that surrounds them and place into a large glass or jar.

Step 3

Add enough water to the glass to cover the seeds and pulp. Set the jar aside for one week, stirring once a day.

Step 4

Scoop the pulp and any floating seeds, which are not viable, from the surface of the jar with a spoon or carefully pour them off. Remove the viable seeds from the bottom of the jar.

Step 5

Spread the cucumber seeds in a single layer on paper towels. Let dry for one to two weeks.

Step 6

Place dried seeds in an envelope and store in a cool, dry place until spring planting. Alternately, place in a sealed jar and store in the refrigerator.

Tips and Warnings

  • Moisture will cause the seeds to rot or sprout prematurely. If moisture is an issue place a packet of silica gel, available from florists, in the envelope with the seeds.

Things You'll Need

  • Knife
  • Glass
  • Spoon
  • Paper towels
  • Envelope
  • Jar


  • Clemson University Extension: Heirloom Vegetables
  • University of Montana Extension: Know Which Seed to Save for Next Season
Keywords: seed saving, harvesting cucumber seeds, cucumber propagation

About this Author

Jenny Harrington is a freelance writer of more than five years' experience. Her work has appeared in "Dollar Stretcher" and various blogs. Previously, she owned her own business for four years, selling handmade items online, wholesale and via the crafts fair circuit. Her specialties are small business, crafting, decorating and gardening.