Tenderheart Chinese Cabbage
Brassica rapa, Pekinensisi Group 65 days. This napa-type cabbage packs loads of flavor into a miniature, dense head. Early maturing and slow to bolt, Tenderheart is an excellent choice for small gardens, containers, or for those looking for a single serving Chinese cabbage. Each crisp, crunchy head weighs in at approximately 2 pounds.
Winter Growing Information
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CULTURE: This crop grows best in a cool environment with moist, airy soil that provides high nutrient levels. Responds best to decreasing day length and temperatures, which makes it a good fall crop. Spring plantings can also be successful when planted at the proper time. Premature bolting is often times a result of young plants being exposed to frost.
TO DIRECT SOW: For a spring crop, sow after the danger of frost. Fall crops can be sown from early July through mid-August. In very friable soil, sow 1 seed per inch, 1/4 inch deep, with rows 18-36 inches apart. Thin seedlings to 12-18 inches apart in the row. One cup of our complete fertilizer is sufficient for 10 row feet.
FOR TRANSPLANTS: For a spring crop, start plants 4-5 weeks prior to your last frost and set out after the danger of frost. Fall crops can be started from early June through mid-July and set out when there are 4-5 true leaves. Sow 1/4 inch deep in a sterile seedling mix. Set transplants to a depth of the first pair of leaves. Space plants and fertilize as described above.
INSECTS: Pyrethrin can be used to reduce flea beetle and Diabrotica (cucumber beetle) infestations. Row covers provide a good physical barrier from insects.
DISEASE: Good crop rotation and a strict sanitary program drastically reduce the chance of disease.
HARVEST: Harvest the heads as soon as mature to avoid bolting. Cut at the surface and store in a cool area at 100% humidity.
SEED SPECS: Minimum germination standard: 75%. Days to maturity are calculated from date of direct seeding. Usual seed life: 3 years. Approximately 125-175 seeds per 1/2 gram.