The "Stella d'Oro" daylily (Hemerocallis 'Stella d'Oro') is one of the most popular and widely grown daylily cultivars. Here are some key features of the Stella d'Oro daylily:

1. Flowers: Stella d'Oro is known for its prolific and repeat blooming. It produces numerous small, trumpet-shaped flowers with a bright golden-yellow color. The flowers have a distinctively extended bloom period, often flowering continuously from late spring through early fall.

2. Size: The plant typically reaches a height of about 12 to 18 inches, with a similar spread. Its compact size makes it suitable for various garden settings.

3. Foliage: Stella d'Oro daylilies have arching, strap-like green leaves that form dense clumps. The foliage serves as an attractive backdrop to the vibrant flowers.

4. Sunlight Requirements: These daylilies prefer full sun but can tolerate partial shade. They tend to produce the most flowers in locations with ample sunlight.

5. Soil and Watering: Daylilies are adaptable to a range of soil types but prefer well-draining soil. Regular watering is beneficial, especially during dry periods, but they are generally considered drought-tolerant once established.

6. Landscape Use: Stella d'Oro daylilies are versatile and can be used in various garden settings. They work well in borders, mass plantings, containers, or as edging along paths.

7. Hardiness: Daylilies, including Stella d'Oro, are hardy perennials and can thrive in USDA hardiness zones 3 to 9, making them suitable for a wide range of climates.

8. Low Maintenance: Stella d'Oro daylilies are known for their low maintenance. They are hardy, disease-resistant, and require minimal care. Deadheading spent flowers can encourage continuous blooming.

Due to its reliability, long bloom period, and adaptability, Stella d'Oro is a popular choice among gardeners for adding vibrant color to landscapes. It is often used as a foundational plant in perennial beds and borders.