How much time does it take for a sunflower to grow from seed to bloom?

Asked on: 7/22/2025

This question has been asked1times.

A sunflower typically takes 70 to 100 days to grow from seed to bloom, depending on the variety and growing conditions.

Estimated Duration: 100 days

Sunflowers grow best in full sunlight with well-drained soil. Plant seeds 1 inch deep and 6 inches apart after the last frost. Water regularly, especially during dry spells, and provide support for taller varieties. The time from planting to blooming varies by species, with dwarf varieties blooming faster than giant types. Optimal conditions, including warm temperatures and adequate nutrients, can accelerate growth. Harvest seeds when the back of the flower head turns brown, usually 30-45 days after blooming.