Pacific dogwood

Pacific dogwood (Cornus nuttallii) is an elegant deciduous tree belonging to the Cornaceae family. Unlike many shrubs within the genus, this species grows into a substantial tree, often prized for its remarkable spring display of large, white, petal-like bracts that surround the small, inconspicuous central flowers.

This species is native to the western regions of North America, stretching from British Columbia down through the coastal ranges of California. Its natural habitat is typically found in the understory of coniferous forests, where it benefits from high humidity and protection from intense direct sunlight.

Botanically, the tree is defined by its simple, opposite leaves and the distinct large bracts. These structures perform a significant role in attracting pollinators, providing a striking visual impact during the peak of the blooming season. The tree can reach heights of 10 to 15 meters in optimal conditions.

Cultivation requirements involve specific soil and light conditions. Pacific dogwood thrives in well-drained, slightly acidic soil enriched with organic matter. Growers must avoid poorly drained sites, as the root system is highly sensitive to waterlogging. Planting in a location with dappled shade is essential to prevent leaf scorch.

In terms of agricultural use and landscaping, the tree serves as a premium ornamental specimen for large gardens and parks. However, it requires vigilance against pests and pathogens, especially anthracnose, a fungal disease that can be devastating. Proper maintenance, including mulching and airflow management, is vital for long-term health.

• Botanical name: Cornus nuttallii Audubon.
• Hardiness: Prefers mild, humid climates.
• Flowering season: Late spring to early summer.
• Maintenance level: High, requires careful site selection.