One of the most common Asian vegetables around, Choy Sum is characterised by the yellow flowers that borne on slightly fleshy stems. In Cantonese, the name Choy Sum means "heart of the vegetable' due to its earthy taste.
Available all year round. Peak season is Autumn, Winter.
For optimum keeping, it is recommended that you wrap choy sum in newspaper or place them in a breathable plastic bag. Choy sum need a good balance of humidity and oxygen to keep fresh. Place them in the dry crisp area of the refrigerator.