The Eclipse Hydrangea, also known as Hydrangea macrophylla 'Eclipse,' is a unique and striking cultivar of the bigleaf hydrangea. Here are some key features of the Eclipse Hydrangea:

1. Flowers: The Eclipse Hydrangea is known for its large, mophead-style flower clusters, which can reach up to 6 inches in diameter. The flowers emerge creamy white in color and gradually transition to shades of pink or red as they age. This color change creates a stunning two-tone effect on the flower heads.

2. Blooming Season: The Eclipse Hydrangea typically blooms from late spring to early summer, although the exact timing may vary depending on the climate and growing conditions. The flowers are produced on old wood, so pruning should be done immediately after flowering to avoid cutting off next year's blooms.

3. Foliage: In addition to its beautiful flowers, the Eclipse Hydrangea features large, dark green leaves that provide an attractive backdrop to the blooms. The foliage is lush and dense, adding to the plant's overall visual appeal.

4. Growth Habit: Eclipse Hydrangeas have a compact, rounded growth habit, typically reaching heights of 3 to 5 feet and widths of 3 to 5 feet at maturity. This makes them well-suited for use as specimen plants, foundation plantings, or as accents in garden borders.

5. Hardiness: Eclipse Hydrangeas are hardy in USDA Zones 5 to 9, making them suitable for a wide range of climates. They prefer partial shade to full sun and moist, well-drained soil. Providing adequate water and mulch can help maintain soil moisture and protect the plant's roots during hot weather.

6. Maintenance: Eclipse Hydrangeas are relatively low-maintenance plants, requiring only minimal pruning and regular watering. Deadheading spent flowers can help encourage continued blooming throughout the season. If necessary, pruning should be done immediately after flowering to avoid removing next year's flower buds.

7. Landscape Use: Eclipse Hydrangeas are versatile plants that can be used in a variety of landscape settings. They are well-suited for use as specimen plants, focal points in garden beds, or as accents in mixed borders. They also make beautiful additions to container gardens and can be grown as houseplants in containers indoors.

Overall, the Eclipse Hydrangea is a stunning and versatile plant that adds beauty and elegance to any garden landscape with its unique two-tone flowers and lush foliage. With proper care and maintenance, it can provide years of enjoyment and beauty in the garden.