Botanical Name: Helianthus annuus
Family: Asteraceae
Native: North America
Hardiness: Annual
Plant Dimensions: 16"–24" tall
Variety Information: 4"–6" wide bright yellow and golden, single and double flowers, some with dark centers.
Exposure: Full sun
Bloom Period: Summer to frost
Attributes: Attracts Pollinators, Cut Flower, Drought Tolerant, Good for Containers, Heat Tolerant
When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date.
When to Start Inside: 2 to 4 weeks before your average last frost date. Sunflowers are senstive to root disturbance; sow in biodegradable pots that can be planted directly in the ground.
Days to Emerge: 10–15 days
Seed Depth: ¼"–½"
Seed Spacing: A group of 3 seeds every 6"–9"
Thinning: When 3" tall, thin to 1 every 6"–9"
