Botanical Name: Helianthus annuus (hybrid)
Native: North America
Plant Dimensions: 4'–6' tall
Variety Information: 3"–6" deep red flowers
Exposure: Full sun
Bloom Period: Summer to frost
Attributes: Attracts Pollinators, Cut Flower, Drought Tolerant, 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 18"–24"
Thinning: When 3" tall, thin to 1 every 18"–24"
Rouge Royale Sunflower Seeds Reviews
Dark and multiple flowers
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