There are several methods to thresh https://www.seedsavers.org/prize-choy-organic- seeds and remove chaff. asian-green Small harvests can be threshed by https://www.seedsavers.org/mizuna-organic- asian-green rubbing seed pods between your hands or against the inside of a https://www.rareseeds.com/japanese-giant-red- mustard-greens bucket, causing pods to break open. https://www.seedsavers.org/learn#growing- For larger harvests, place seed stalks guides in large tubs or on tarps and tread on https://www.chinasichuanfood.com/quick-fry- them. Discard stalks after seeds are bok-choy/ dislodged. Bok Choy seed pod: http:// www.tinygreenhands.com/harvesting-bok-choy- Screen and winnow remaining seeds/ Bok Choy “Prize Choy” material to remove chaff. Seed harvesting and chaff: http:// (Brassica rapa) After removing chaff, place in www.godsgrowinggarden.com/2012/08/saving- container. seeds-greens-kale-collard-bok.html Mizuna “Asian Green” Store in dry, cool conditions for 5-6 (Brassica rapa var. nipposinica) years for best germination results.
Mustard Greens “Japanese Giant Red” (Brassica juncea)
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Bok Choy has a mild flavor and contains more calcium than diary products or other vegetables. Separate leaves for salads or chop for stir-fries. Bok Choy can also be a Direct sow outdoors in gardens or healthy addition to smoothies. containers after the last frost, in full sun or partial shade. Seeds germinate in 4-7 days when soil is kept moist. Bok Choy, Mustard, and Mizuna are Cooler growing temperatures help all annuals and insect pollinated. prevent plants from flowering early. Because they are the same species, Container plants will benefit from Bok Choy and Mizuna will cross- shade on hot days. pollinate with each other if not A second crop can be planted for fall isolated. It is recommended that only harvest in late summer. one be grown for seed at a time. Mizuna and Mustard have a spicy flavor and can be eaten as baby lettuce in salads Let seeds dry on the plants and or sandwiches when leaves are smaller gather seed from as many plants as Harvest Bok Choy when heads have than 4 inches. Larger Mizuna leaves may possible. formed, about 45-50 days after be bitter. Remove the midrib from larger planting. Harvest seed pods when they turn leaves before adding to soups and stir- grey or beige, collecting closed pods Mizuna and Mustard leaves are fries. Cooking greatly reduces the size of to avoid scattering seeds. Fully dried harvested like loose-leaf lettuce. Baby volume of the leaves. Mustard greens can seeds are hard, and will not dent with leaves at 21 days, and mature leaves be stir-fried or pickled. a thumb nail. 40 days from planting.
Harvest in early morning or evening and immerse in cool water to prevent wilting. Refrigerate in plastic bags with a paper towel to absorb moisture and help keep leaves dry. Use within a week of picking.