Adams’ Manzanita

Arctostaphylos glandulosa ssp. adamsii, commonly known as Adams’ Manzanita, is a subspecies of manzanita native to the coastal regions of California, particularly in the San Francisco Bay Area and the adjacent coastal ranges. This evergreen shrub typically grows to a height of 1 to 3 meters (3 to 10 feet) and exhibits a spreading, bushy form. The branches are often twisted and gnarled, contributing to its distinctive appearance. The bark is smooth and reddish-brown, which is characteristic of many manzanitas, and it peels in thin strips, revealing a lighter inner bark.

The leaves of Adams’ Manzanita are small, leathery, and oval-shaped, measuring approximately 2 to 5 centimeters in length. They are dark green and often have a glossy surface, which can help reduce water loss in its native dry habitats. In spring, this species produces clusters of small, urn-shaped flowers that are typically white to pale pink, attracting various pollinators, including bees and butterflies. Following the flowering period, the plant develops small, round berries that are dark red to purple when ripe. These fruits are an important food source for birds and other wildlife, facilitating seed dispersal.

Adams’ Manzanita plays a significant ecological role in its native habitat, often forming dense thickets that provide shelter and food for various animals. It is well-adapted to thrive in nutrient-poor, well-drained soils, often found in chaparral and coastal scrub ecosystems. The plant has developed a thick, fire-resistant bark, allowing it to survive in areas prone to wildfires, a common occurrence in its native range. Additionally, it has a deep root system that helps it access moisture during dry periods, making it resilient to drought conditions. This species is also valued in horticulture for its ornamental qualities and is used in landscaping for erosion control and habitat restoration projects.