Carissa holly, also known as Carissa macrocarpa, is a species of holly native to South Africa. It's commonly cultivated as an ornamental shrub in landscapes due to its attractive foliage, compact growth habit, and tolerance of various growing conditions. Here's some information about it:

1. Appearance: Carissa holly is an evergreen shrub with glossy, dark green leaves that are oval to lanceolate in shape. It produces fragrant, star-shaped white flowers in spring or early summer, followed by small, round, red to purplish-black berries in late summer or fall.

2. Size: Depending on the variety and growing conditions, Carissa holly can reach a height and width of about 3 to 4 feet, making it suitable for use as a low hedge, border plant, or specimen shrub.

3. Sunlight: Carissa holly prefers full sun to partial shade. It can tolerate some shade but will produce more flowers and fruit in sunnier locations.

4. Soil: It grows best in well-draining soil with good organic content. It can tolerate a range of soil types, including sandy, loamy, or clay soils, as long as they are not waterlogged.

5. Watering: Keep the soil consistently moist, especially during the establishment period. Once established, Carissa holly is relatively drought-tolerant but will benefit from regular watering during dry spells.

6. Pruning: Pruning can be done as needed to maintain the desired shape and size. Carissa holly responds well to pruning and can be shaped into formal hedges or left with a more natural appearance.

7. Fertilizing: Apply a balanced fertilizer in spring to promote healthy growth and flowering. Follow the manufacturer's instructions for application rates.

8. Pest and Disease Resistance: Carissa holly is generally resistant to pests and diseases. 

9. Landscape Uses: Carissa holly is commonly used in landscapes as a low hedge, border plant, or specimen shrub. Its attractive foliage, fragrant flowers, and colorful berries make it a popular choice for adding interest and beauty to gardens.

Overall, Carissa holly is valued for its ornamental features, low maintenance requirements, and versatility in the landscape. It's a great option for gardeners looking for a reliable and attractive evergreen shrub.