Southern Giant Curled Mustard, 2000 Seeds, Spring/fall, Cold Resistant, Slow Bolt Soil & Water: Mustard greens prefers rich, fertile soil with a pH of 6.0-7.5 and plenty of added organic matter. The plants need regular, even moisture to avoid bitterness. Planting & Growing: Start seeds indoors and transplant out before the frost, or sow seeds directly a few weeks before the last frost. Mustard is very cold tolerant. Harvesting & Storage: Begin harvesting individual leaves after the center rosette has begun to develop. You can begin harvesting at 6" by picking outside leaves. Mustard greens are slow to bolt and are winter hardy. Did You Know? Mustard greens contain large amounts of beta-carotene and vitamins A and C. Soil Temperature: 60-70F Planting Depth: 1/4" Germination: 4-10 Days Height At Maturity: 12"-24" Days To Maturity: 40-65 Days Sun/Shade: Partial Sun Spacing After Thinning: 6"-15" Prepare fertile, well-drained soil. Sow seeds in early to late spring or late summer to early fall. Keep soil moist. Fertilize as needed. Plant every 2 weeks for continuous harvest. Bolting will occur when temperatures and day length increase. Rotate crop at least every 3 years. Vegetable Seed Saving: Allow seed heads to dry on plants; then remove heads, break them open, and collect seeds. Clean and dry the seeds before storage in cool dry conditions. Culinary tips: Harvest at any stage, micro-greens to baby leaf for salads and sandwiches, as well as flowers and seed pods. Mature leaves are excellent for pickling, cooking and juicing. : Our seeds/bulbs are guaranteed to be fresh but are NOT guaranteed as to results. Sorry, but there are too many variables in gardening that can impact germination. Flower seeds/bulbs are a live organism. Their germination depends on many factor including heat, cooling, sun, shade, moisture, time of sowing, etc. None of these things We can control so We can not be held responsible for them. So please do not ask for a refund, replacement or to return unused seeds/bulbs.