March 1996 Andean alder is a fast growing tree well adapted to New Zealand conditions. It has a variety of uses ranging from landscaping and soil improvement to large scale timber production and agroforestry-fodder production systems. It could become an important component of sustainable systems across the country. Andean alder is the southernmost species of the genus Alnus .
Alders are generally well known as ruderal trees of moist, stream-side habitats.
Their fast growth rates, attractive deciduous foliage and nitrogen-fixing capacity make them species of choice for landscaping and soil protection on river banks and other humid terrain. This species differs from most other alders in several respects. It generally has faster growth rates, attains a larger size and is tolerant to drier sites. These attributes suggest that this species has greater potential than other alders. Shape is variable depending on genetic type and environmental conditions.