The "Blue Chiffon" hibiscus (Hibiscus syriacus 'Blue Chiffon') is a specific cultivar of Rose of Sharon, known for its unique and striking blue to lavender-blue flowers. Here are some key features and care guidelines for the Blue Chiffon hibiscus:

1. Flowers: Blue Chiffon hibiscus is prized for its large, double flowers with a distinctive blue to lavender-blue hue. The blooms have a frilly or chiffon-like texture, giving them a delicate and elegant appearance.

2. Foliage: The plant has green, lobed leaves that provide a nice contrast to the colorful blooms. Like other Rose of Sharon varieties, the foliage is deciduous, meaning it drops its leaves in the fall.

3. Form: Hibiscus syriacus, including the Blue Chiffon cultivar, typically grows in an upright, vase-shaped form. It can reach a height of 8 to 12 feet, with a similar spread.

4. Sunlight: Blue Chiffon hibiscus thrives in full sun to partial shade. Full sunlight generally promotes more prolific flowering.

5. Soil: Well-draining soil is crucial for the health of the plant. The Blue Chiffon hibiscus is adaptable to different soil types but prefers a slightly acidic to neutral pH.

6. Watering: Keep the soil consistently moist, especially during dry periods. Regular watering is important for optimal growth and flowering.

7. Pruning: Prune the Blue Chiffon hibiscus in late winter or early spring to remove dead or weak growth and shape the plant. This encourages vigorous new growth and helps maintain a more compact form.

8. Fertilization: Apply a balanced fertilizer in the spring, ideally formulated for flowering shrubs (Plant Tone). Follow the recommended application rates on the fertilizer packaging.

9. Winter Care: In colder climates, provide a layer of mulch around the base of the plant in late fall to help protect the roots during winter.

10. Landscape Use: Blue Chiffon hibiscus is commonly used in gardens and landscapes as a specimen plant, in hedges, or in mixed borders. Its vibrant blue flowers add a splash of color to the summer garden.

This cultivar, like other Rose of Sharon varieties, is generally low-maintenance and provides a beautiful display of flowers during the summer months. Regular care, proper watering, and occasional pruning will contribute to the overall health and beauty of the Blue Chiffon hibiscus in your garden.