This is the most widely grown Pak Choi. Seeds are sown in early spring and fall for the best results. Plants can be picked for eating, 45 days after sowing. This standard type Pak Choy is very popular and can be found in most Oriental as well as Western supermarkets in the West Coast. Mild flavored leaves and cripsy petioles are used extensively in many Chinese dishes. In many regions of China, this vegetable after harvested is also dried and stored for later use in cooking.