The "Red Heart" hibiscus (Hibiscus acetosella 'Red Heart') is a specific cultivar known for its striking foliage and distinctive red center. Here are some key features and care guidelines for the Red Heart hibiscus:

1. Foliage: The Red Heart hibiscus is primarily grown for its attractive foliage. The leaves are typically dark burgundy to purple, creating a dramatic backdrop for the bright red centers.

2. Flowers: While the primary appeal of this cultivar lies in its foliage, it may produce occasional hibiscus-like flowers. These flowers can be red or have a red center, complementing the overall aesthetic of the plant.

3. Form: Red Heart hibiscus generally has a shrubby, bushy growth habit. It can reach a height of 4 to 6 feet.

4. Sunlight: This hibiscus cultivar thrives in full sun to partial shade. To encourage the best foliage coloration, providing it with plenty of sunlight is recommended.

5. Soil: Well-draining soil is essential for the Red Heart hibiscus. It can tolerate various soil types but prefers a fertile and well-draining medium.

6. Watering: Keep the soil consistently moist. While the plant can tolerate short periods of drought, regular watering is important for optimal growth and foliage development.

7. Pruning: Prune the Red Heart hibiscus to shape and manage its size. Regular pruning can also help encourage branching and a bushier growth habit.

8. Fertilization: Apply a balanced fertilizer during the growing season to provide essential nutrients for the plant's health and growth (Plant Tone). Follow the recommended application rates on the fertilizer packaging.

9. Landscape Use: Red Heart hibiscus can be used as a focal point in gardens, in mixed borders, or as part of container plantings. Its dark foliage and red centers make it a visually appealing choice.