Chive Growing Information Allium schoenoprasum Direct Seed: As soon as soil warms to 65° F. Transplant: Seed 3-4 seeds per plug 6-8 weeks before last frost. Soil temperature for germination is 65-70° F. Spacing: Sow 4-6 seeds 6” apart in rows 18” apart. Thin to 2-3 plants. Or transplant cluster of seedlings every 6-12” in rows 18” apart. Harvest: Once foliage is of desired size. Flowers can also be harvested for culinary uses. Herbs can be used dried or fresh.