Mammoth Sunflower

Mammoth Sunflower: Fast Facts

  • Name: Mammoth Sunflower
  • Bred By: Developed through selective breeding for large sunflower heads
  • Introduced: Late 1800s
  • Growth Habit: Tall and sturdy, reaching heights of 8-12 feet or more
  • Blooms: Large, classic sunflower heads with bright yellow petals
  • Color: Vibrant yellow petals with a dark brown or black center
  • Foliage: Large, coarse, dark green leaves
  • Flowering Time: Late summer to early fall
  • Climate: Thrives in warm climates with full sun, but can adapt to various conditions
  • Disease Resistance: Generally good, but monitor for common sunflower pests
  • Growing Classification: Annual
  • Origin/Distribution: Bred for ornamental use and widely available in various regions
  • Blooming Season: Late summer to early fall

Should you Buy One?

The Mammoth Sunflower is a classic and iconic choice for gardeners who want to make a bold statement in their garden. Its towering height and large, bright yellow flowers create a dramatic and impressive display. This sunflower variety is often grown for its seeds, which are both delicious and a favorite of birds. Gardeners looking for a majestic addition to their garden will find the Mammoth Sunflower to be a rewarding choice.

Mammoth Sunflower Specific Care

To ensure the health and vitality of Mammoth Sunflowers, provide them with full sunlight and well-draining soil. Due to their enormous height, staking is essential to prevent bending or breaking of the stems. Regular watering, particularly during dry spells, is crucial to support their growth and maintain the vibrant yellow color of the petals.

General Sunflower Care Tips

  • Sunlight: Sunflowers, including Mammoth, require full sun, ideally 6-8 hours daily.
  • Soil: Plant in well-draining soil enriched with compost or organic matter.
  • Watering: Maintain consistent moisture, providing about 1-2 inches of water per week, increasing during hot, dry periods.
  • Fertilization: Apply a balanced fertilizer at planting and periodically during the growing season.
  • Pest and Disease Management: Keep an eye out for common pests like aphids and diseases like mildew, and treat as needed.

FAQs about Mammoth Sunflower

They can reach heights of 8-12 feet or more, depending on growing conditions.

While it’s possible, the immense height of Mammoth Sunflowers makes them more suitable for garden beds or open spaces.

Yes, like other sunflowers, they can attract bees and other pollinators to your garden. Additionally, their seeds are a valuable food source for birds.

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