Season: Sunflowers commonly bloom during summer and a portion of fall, with the middle of summer as the peak season.
Sunlight requirement: Full-Sunlight
Plant Height: 4-6 ft
Germination Time: 3 to 10 Days
Pot Size: Medium
Soil requirement: Well Drained, Mix of River Sand, Vermi-Compost & Garden Soil
Space seeds about 6 inches apart in a shallow trench between 1 and 2 inches deep. In sandy soil, 2 inches deep is better. Cover and keep watered until seeds sprout in 3 to 7 days.
Content By: https://www.burpee.com/gardenadvicecenter/annuals/sunflowers/all-about-sunflowers/article10035.html