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Double sunflowers, also known as double-flowered sunflowers, are a captivating variation of the traditional sunflower species (Helianthus annuus). Here's a detailed description of double sunflowers:1. **Flower Head**: Double sunflowers are distinguished by their densely packed layers of petals, which give them a lush and full appearance. Unlike single-flowered sunflowers that have a central disk surrounded by a single layer of petals (ray florets), double sunflowers have multiple layers of petals that can completely cover the central disk.2. **Petals**: The petals of double sunflowers can vary in color and arrangement depending on the variety. They often come in shades of yellow, gold, orange, and sometimes even red or bi-colored combinations. The petals are numerous and densely packed, creating a fluffy, almost pom-pom-like appearance.3. **Size**: Double sunflowers typically have larger flower heads compared to single-flowered varieties. The diameter of the flower heads can range from 4 inches (10 cm) to over 12 inches (30 cm), depending on the specific cultivar.4. **Stems and Leaves**: Like traditional sunflowers, double sunflowers have strong, sturdy stems that can grow tall, often reaching heights of 4 to 8 feet (1.2 to 2.4 meters) or more. The leaves are large, rough-textured, and usually heart-shaped, providing a robust backdrop to the impressive blooms.5. **Varieties**: There are several popular varieties of double sunflowers, each with its own unique characteristics. Some well-known cultivars include 'Teddy Bear', which features fully double, fluffy blooms, and 'Sunrich Double Gold', known for its large, golden-yellow flower heads.6. **Growing Conditions**: Double sunflowers thrive in full sun and well-drained soil. They are relatively easy to grow from seed and are well-suited for garden borders, containers, or as cut flowers for floral arrangements.7. **Symbolism**: Sunflowers, including double-flowered varieties, symbolize adoration, loyalty, and longevity. Their bright and cheerful appearance makes them popular choices for gardens and bouquets, particularly during the summer months.Double sunflowers are prized for their striking beauty and are a favorite among gardeners and flower enthusiasts looking to add a splash of color and texture to their outdoor spaces.