How to Save Squash, Pumpkin (Cucurbita argyrosperma) Seeds

Seed Saving Guide #2728
Family: Cucurbitaceae
Binomial name: Cucurbita argyrosperma

Flower Type Monoecious (male and female flowers on the same plant), self-compatible
Pollination Insect pollinated
Isolation Distance 500m
Other Isolation Methods Hand pollination.
Population Required for Viable Seeds 1
Population Required to Maintain Variety 5-10
When to Harvest When the fruit is a large size and changes colour slightly, the rind is hard to dent with a fingernail and the fruit stems are dry. Leave fruit to mature for 20 days after picking before harvesting seeds.
How to Harvest

Cut fruit in half and scoop out the seeds, separating them from the pulp as much as possible.

How to Clean

Rinse seeds thoroughly to separate them from the pulp, then spread them on a screen or plate to dry.

Image of Seeds Squash, Pumpkin (Cucurbita argyrosperma)

May cross-pollinate with other Cucurbita argyrosperma plants including some varieties of squash and gourd. Harvested seeds can be soaked for several hours to help separate them from the pulp.

What is Seed Saving?

Seed saving is the practice of collecting and storing mature seeds from open-pollinated plants. By allowing plants to reach full maturity and harvesting the seeds, they can be cleaned, dried, and stored for future use. 

  • To learn the techniques and methods needed to save seeds in your garden, we recommend reading our seed saving series.
  • To view a combined table of all our seed saving guides view our Seed Saving Chart.
  • To browse our seed saving guides individually click here.