Pseudopanax nigra, commonly known as the Black Mapou or Coastal Five-Finger, is a native shrub or small tree found in New Zealand and is known for its distinctive dark-colored leaves and attractive growth habit. 
 
Description:
 
Growth Habit: Pseudopanax nigra typically grows as a multi-stemmed shrub or small tree. It can reach a height of around 2-4 meters and has an upright and bushy growth habit.
Leaves: The leaves of the Black Mapou are unique and striking. They are dark green to almost black in color, with a glossy surface. The leaves are large, pinnate, and often have serrated edges, giving them a serrated appearance.
Flowers: This plant produces small, cream-colored flowers that are borne in panicles or clusters. The flowers are not particularly showy, but they attract bees and other pollinators.
Berries: After flowering, Pseudopanax nigra may develop small, round, black fruit. The fruit is not commonly seen on cultivated plants.
 
Growing Conditions:
 
Sunlight: Black Mapou prefers full sun to partial shade. It typically grows well in areas with filtered sunlight, especially in cooler climates.
Soil: This plant prefers well-draining, fertile soil. It can tolerate a range of soil types, including sandy, loamy, or clay soils.
Watering: Pseudopanax nigra prefers consistent moisture but is relatively drought-tolerant once established. Regular watering during dry spells will help maintain its health and growth.
Temperature: This plant is well-suited for temperate climates and can tolerate light frosts. It is not suitable for extremely cold or freezing temperatures.
Maintenance: Black Mapou is generally low-maintenance. Prune as needed to remove any dead or crowded growth and to shape the plant.
 
Uses in Landscaping:
 
Coastal Gardens: Suitable for coastal environments. Tolerant of salt spray and windy conditions, making it a good choice for seaside gardens and coastal plantings.
Hedging and Screening: Useful for creating dense, bushy hedges and privacy screens. Its vertical growth habit and dense foliage provide effective coverage and screening.
Low-Maintenance Gardens: Requires minimal care once established. Hardy and adaptable to a range of soil types and conditions, making it suitable for low-maintenance gardens.
Erosion Control: Effective for stabilizing soil on slopes and embankments. Its root system helps prevent soil erosion and stabilize loose soils.