How Long Does a Sunflower Seed Need to Grow?
- Sunflowers mature in approximately 100 days. This is a short time to maturity compared to many other crops.
- Sunflowers grown in colder regions may take 90 to 100 days to reach maturity. Those in more mild climates take 100 days or more to mature.
- Sunflower seeds sprout about 11 days after planting. The sunflower continues to grow and develop for about 75 days. It reaches maturity approximately 30 days after the end of pollination.