How Do You Grow Mongolian Sunflowers?
How Do You Grow Mongolian Sunflowers? Direct Seed: 6′′ Apart. Direct Seed: 1/2′′ Deep. Germination: 10-14 Days. Rows Apart: 24-36′′ How long does it take for a giant sunflower to grow? How fast do sunflowers grow? Sunflowers grow quickly. Many can achieve up to 12 feet of growth in only 3 months. With the proper