Assertion: buckwheat | /r/HasProperty | ready to harvest
Facets:
Source sentences:
text: Buckwheat is ready to harvest when the grain (seed) is ripe around 8 to 10 weeks, when the seeds turn a dark brown.
text: To decide when buckwheat is ready to harvest, we rely on research from Manitoba that shows the best swathing time to be when 2/3 of the filled grains are black.