Choy sum is the most widely grown flowering brassica. Cultivated in southern Asian since the 5th century. Widely cultivated in southern China mainly in the summer and autumn. Delicious choy sum recipes.
Choy sum is the most widely grown flowering brassica. Cultivated in southern Asian since the 5th century. Widely cultivated in southern China mainly in the summer and autumn. Delicious choy sum recipes.