Arizona produces approximately 1/4 to 1/5 of the leafy greens grown in the US, by weight, depending on the exact commodity [1]. Meanwhile, California produces r

Arizona produces approximately 1/4 to 1/5 of the leafy greens grown in the US, by weight, depending on the exact commodity [1]. Meanwhile, California produces roughly 3/4 of such products grown in the US. The two states participate in a seasonal rotation, where California's temperate valleys produce most of the summer crop, and in the winter production is shifted to inland desert locales in both Arizona and California. [1] https://cals.arizona.edu/arec/sites/cals.arizona.edu.arec/files/publications/FINAL%20leafy%20greens%20september%202017.pdf https://cals.arizona.edu/arec/sites/cals.arizona.edu.arec/fi... [2] https://californiaagnet.com/2017/11/03/a-look-at-year-round-lettuce-production-from-californias-leafy-greens-marketing-agreement/ https://californiaagnet.com/2017/11/03/a-look-at-year-round-... [3] https://www.ers.usda.gov/webdocs/publications/93033/vgs-362.pdf?v=1958.8 https://www.ers.usda.gov/webdocs/publications/93033/vgs-362.... [4] https://news.ycombinator.com/item?id=18535425#18536045 https://news.ycombinator.com/item?id=18535425#18536045