"Obsession" is a cultivar of Nandina domestica, commonly known as heavenly bamboo or sacred bamboo. Nandina is an evergreen to semi-evergreen shrub that is prized for its attractive foliage and berries. 'Obsession' is a specific variety of Nandina that offers certain distinctive features.

Here are some key characteristics of Nandina domestica 'Obsession':

1. Foliage: One of the main attractions of 'Obsession' is its vibrant red foliage. The new growth emerges as bright red, creating a striking contrast with the mature green leaves. As the leaves age, they may transition to a deep burgundy or purple hue.

2. Compact Growth: 'Obsession' is a compact cultivar, typically reaching a height of around 3 to 4 feet. This makes it suitable for various garden settings, including smaller landscapes and container gardening.

3. Berries: Like other Nandina varieties, 'Obsession' produces clusters of small, bright red berries in late summer and fall. The berries add visual interest to the plant and attract birds.

4. Sunlight: Nandina 'Obsession' prefers full sun to partial shade. It tends to exhibit the best coloration when exposed to ample sunlight.

5. Hardiness: Nandina is generally hardy and can thrive in a range of USDA Hardiness Zones, typically Zones 6 to 10. 'Obsession' should be well-suited to these zones.

6. Landscape Use: This cultivar is often used for mass plantings, borders, or as an accent plant in garden beds. Its compact size and colorful foliage make it a versatile choice for landscaping.

7. Maintenance: Nandina 'Obsession' is generally low-maintenance. Pruning can be done to shape the plant if needed, but it's not always necessary. The berries can be left on the plant for winter interest, or they can be pruned off if desired.

When incorporating Nandina 'Obsession' into your landscape, consider its color changes throughout the seasons and ensure it receives the appropriate sunlight for optimal foliage coloring. As with any plant, it's beneficial to check local recommendations for its suitability in your specific climate and soil conditions.