Brassica oleracea gemmifera 'Jade Cross'
|Cabbage, Broccoli, Collards and Cauliflower, plus the less-often-grown Kohlrabi, Mustard Greens, Chinese Cabbage and Turnips, all belong to this family. All are cool-weather vegetables, rich in vitamins A and C and a good source of fiber. Best when matured during fall or when temperatures remain between 40º and 70º F. Cole crops tolerate early spring and late fall frosts, but aside from Collards, do poorly in hot weather. For summer crops, start seed indoors and transplant seedlings outdoors 4 to 6 weeks before last frost. Heavy feeders of nitrogen and potash, they like a soil pH between 6 to 7.5. Sow shallow-rooted plants no more than 1 inch deep. For fall crops, start seed from mid to late summer. In mild winter areas, plant from late summer through early spring for harvest from fall to spring. Watch for many pests including cabbage lopper, root maggots, cabbage worm and flea beetles, plus diseases such as club root, damping off, mildew and fusarium yellows. To reduce the risk of diseases and pests, plant where cole crops have not been grown for 3 years, and maintain proper soil pH.
Each plant produces up to 100 sprouts. Fall frosts improve taste. Plant in late spring or midsummer for harvest in 80 to 120 days. Sprouts mature from bottom. Remove leaves beneath lower sprouts to encourage growth. In early winter areas, pinch growing tips when plants are 15 to 20 inches tall to encourage earlier, but smaller crops. In fall, harvest stalks with sprouts, hang in cool, dry spot for winter eating.
Attributes - Brassica oleracea gemmifera 'Jade Cross'
Plant Type: Vegetable
Height: 2 ft. to 2 ft. 6 in.
Width: 1 ft. 6 in.
Sunlight: Full Sun
Notes: Edible. Susceptible to Aphids, Beetles, Caterpillars, Damping-off, Fusarium Wilt, Powdery Mildew.
Brassica 'Green Comet', Brassica 'Packman', Brassica juncea, Brassica oleracea, Brassica oleracea ancephala, Brassica oleracea botrytis 'Premium Crop', Brassica oleracea botrytis 'Snow Crown', Brassica oleracea capitata 'Round Head', Brassica oleracea capitata 'Savoy Ace', Brassica rapa, Brassica rapa chinensis 'Mei Quing Choi'