Organic New Red Fire Lettuce 200 Seeds #7055 Item Upc#650348691868 New Red Fire is relatively slow, but produces uniform, heavy heads of well-colored, frilly leaves. 55 Days. 200 Seeds Sow seeds 1" apart, rows 12-18" apart. Cover seed lightly, about 1/8", and firm soil gently. Thin iceberg and romaine lettuce to one plant every 10-12", other types 8-10" for full size heads or 6" for mini heads. Dry soil must be watered to ensure coolness and moisture, and for uniform germination.