Most herb seeds germinate in 5–21 days when kept moist and warm. Basil, cilantro, parsley, chives, oregano, thyme, and rosemary typically sprout in 7–14 days. Seedlings are ready for transplanting in 2–6 weeks typically. Provide ample light and be careful not to overwater, as Herbs grown from seed reach maturity and are ready for first harvest in 8–12 weeks on average. Some varieties like cilantro mature even faster in as little as 5–6 weeks after germinating. Others can take up to 16 weeks, like rosemary and sage.