USU Student Organic Farm
Spinach is believed to originate in Persia ␣ modern-day Iran. It was introduced in China over 10 centuries ago and in America only about 3 centuries ago. Spinach is currently produced year-round in the United States with California being the major producer here. However, China produces about 85% of the world's spinach whereas the United States only produces a mere 3%.
Inman, Elisabeth, "Spinach" (2011). USU Student Organic Farm Newsletter. Paper 7.