Helianthus annuus. 60 to 90 days.
Grey Stripe is a native, annual sunflower variety, and one of the most familiar and iconic of all class sunflowers.
Plant grows to a staggering 8 to 12 feet in height and produces large, bright yellow flowers that average between 10 and 12 inches in width and are extremely attractive to bees, butterflies, and hummingbirds.
An excellent choice for growing along fences or buildings for privacy. Seeds are easy to harvest and excellent for roasting.
Grey Stripe Sunflower
Growth Chart
Hardiness Zones:
2 to 11
Light Requirement:
Full sun
Soil Type:
Average, well-drained
Sow Depth:
1 inch
Plant Spacing:
6 inches
Germination Temp:
70°F to 75°F
Germination Time:
7 to 14 days
Bloom Time:
Late summer to early fall
Growing Tips
Direct sow in late spring once the soil has warmed to 70 degrees F or higher. Sow several seeds together 1 inch deep and 6 inches apart in rich, well-drained soil. Keep soil moist, and seeds will begin to germinate in 7 to 14 days. Thin to the strongest seedlings.
