The "Happy Returns" daylily is a cultivar of Hemerocallis known for its cheerful, golden-yellow blooms and reliable reblooming habit. Here are some key points about this plant:

1. Appearance: "Happy Returns" daylilies produce vibrant, trumpet-shaped flowers with six petals. The blooms are a bright, sunny yellow color with a soft, lemony hue. The flowers typically have a slight fragrance and appear on tall, slender stems above a clump of arching, grass-like foliage.

2. Size: This daylily cultivar typically grows to a height of 18 to 24 inches (46 to 61 cm) with a spread of 18 to 24 inches (46 to 61 cm). It forms clumps of foliage that gradually spread over time.

3. Flowering: "Happy Returns" daylilies are known for their prolific blooming habit. They produce an abundance of flowers from late spring through summer and often continue blooming sporadically into the fall. Each flower lasts for one day, but the plant produces multiple buds, ensuring a prolonged display of color in the garden.

4. Sun and Soil Requirements: Daylilies, including "Happy Returns," thrive in full sun to partial shade. They prefer well-draining soil and can tolerate a wide range of soil types, including sandy, loamy, and clay soils. However, they perform best in soil that is rich in organic matter.

5. Watering: "Happy Returns" daylilies have moderate water needs and prefer evenly moist soil. They should be watered deeply and regularly, especially during hot, dry periods. However, it's important not to overwater, as this can lead to root rot and other problems.

6. Maintenance: Daylilies are relatively low-maintenance plants and require minimal care. Deadheading spent flowers can help promote continued blooming and prevent self-seeding. Foliage may be trimmed back in late fall or early spring to remove dead or damaged leaves.

7. Landscape Use: "Happy Returns" daylilies are commonly used in perennial borders, cottage gardens, and mixed flower beds, where their vibrant flowers add color and visual impact. They also work well as a focal point or accent plant in garden landscapes.

Overall, "Happy Returns" daylilies are prized for their cheerful blooms, reliable reblooming habit, and ease of care. With their bright yellow flowers and long blooming period, they add beauty and charm to garden landscapes throughout the growing season.