This specialty Bok Choy grows close to ground, open up 15~20 cm wide. Round dark green leaves with wrinkles. Leaves stack tightly to form a beautiful sunflower shape. 70~90 days from sowing to maturing. It likes cool weather and tolerant to cold. Frost and cold weather will promote excellent texture and flavor.
It is the best to grow in late summer or autumn to let it grow into cold winter or through winter. When Wu Choy exposes to low temperature (-5 C to 5 C) for more than 2 weeks, Wu Choy Shutter will grow flat dark green layers of leaves which have crispy and favorable tastes.
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