Sunflowers typically take about 70 to 120 days to grow from seed to mature flowering plants, depending on the variety and growing conditions.

• From planting to emergence, it takes about 11 days for sunflower seeds to sprout

• The sunflower head forms around 33 days after emergence, with flowering starting roughly 60-70 days after planting

• On average, sunflowers bloom between 70 and 100 days after planting, with some varieties taking up to 120 days to fully mature and develop seeds

• The full growth cycle includes germination (0-10 days), seedling stage (10-20 days), vegetative growth (20-60 days), and bud formation (60-80 days)

• Annual sunflowers generally take 11 to 18 weeks (about 77 to 126 days) to flower from seed

Thus, depending on the sunflower variety and environmental factors, expect sunflowers to take roughly 2.5 to 4 months to grow from seed to flowering and seed production stages.