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How Long Does a Sunflower Seed Need to Grow?

The sunflower grows to a height of 5 to 7 feet and needs moderate to warm temperatures to mature properly. The time required for a sunflower to grow from seed depends on the weather and temperature conditions in which it is grown.

  1. Average

    • Sunflowers mature in approximately 100 days. This is a short time to maturity compared to many other crops.

    Variations

    • 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.

    Stages

    • 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.