Different kind of spinach has contain good source nutrients. Spinach contains iron, calcium, antioxidant, vitamin A, B and C. Its fast growing plant through spring to fall. I sow some spinach seeds in our back yard this year. Its growing well, some of the leaves and stems are pinkish.
It's known as we called in Tamil mulaikkeerai (முளைக்கீரை). It's leaves has good nutrient such as rich iron, calcium. folic acid and other nutrients.