We harvested the buckwheat that we planted earlier this season in a 40 square foot bed. From the 4x10' bed we yielded 4 pounds of dry seed.

The process of harvesting/saving seed entails allowing the crop to mature to fruit followed by cutting off its water source so as to dry it. By doing so, the flowers that have not yet gone to fruit will, while those that have dry out, making them easier to remove from the inflorescence.

Once the seeds are ready for harvest, remove them, and using a screen, winnow out the smaller petals and botanical debris. Some seeds may not be completely dry so store them in a paper or cloth bag (not plastic); this prevents mildew and promotes drying.

* Above is spinach seed that was recently collected.

* Above are sunflower seeds.

So as to dry the harvested seeds and discourage molding, the seeds are spread thin over a screen and left in the sun until dry.

* Above is harvested flax.