This hybrid savoy cabbage is popular for fresh market and storage because of its uniform round, matte blueish-green heads, that are closely wrapped with crinkled leaves. Wirosa has good field standing ability and frost tolerance. Matures in 110-120 days from transplant. Approx. 100 seeds/pkg.
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Plant seeds 1⁄4" deep & space 20-24" apart. Transplant or thin small plants to 15-18 inches apart in rows 30-36 inches apart. Transplants can be started in April for May planting. Transplant after 4-6 weeks. Use a starter fertilizer, soaking the root ball thoroughly prior to transplanting. Direct seed in late spring, as seedlings can tolerate a light frost. Cabbage can be direct seeded up until mid-late June for a continuous harvest. Soil temperature should be 21-26 degrees C for optimal germination in 4-7 days.
Cabbage prefers full sun, but will tolerate part shade. Prepare a rich, loose soil that holds moisture well and has pH level of 6.0-6.5. Cabbage is a heavy feeder and will also benefit from applications of boron, calcium and magnesium, particularly during the early stages of growth.
Heads are ready when firm and when the interior is dense. Heads will split when over mature; rapid growth due to excess moisture and fertility will also cause splitting.
Allow 125g/acre if growing transplants; 500g/acre if direct seeding.