Helianthus ‘Mammoth’ 8G

Mammoth Sunflower is a towering annual that produces enormous, bright yellow blooms with rich brown centers, perfect for dramatic garden displays or cutting. Its tall, sturdy stems thrive in full sun and well-drained soil, supporting massive flowers that can reach impressive sizes. Beyond their striking appearance, these sunflowers attract pollinators and can provide edible seeds for snacking or bird feed.

• Bloom Time: Mid-summer through late summer
• Light Requirements: Full Sun to Part Sun (6 to 6+ Hours)
• Soil Requirements: Well-drained, fertile, organically amended soil ideal; prefers deep, rich, loamy soil with a pH of 6.0–7.5