Knightia excelsa, commonly known as Rewarewa, is a species of evergreen tree native to New Zealand.
 
Description:
 
Size: Rewarewa is a medium-sized tree that can reach heights of 15-25 meters. It has a slender, upright growth habit with a relatively narrow crown.
Leaves: The leaves of Knightia excelsa are dark green, leathery, and lanceolate in shape. They measure about 5-15 cm in length and have serrated edges.
Flowers: Rewarewa produces striking clusters of reddish-orange to crimson flowers. The flowers are tubular in shape and have a prominent display of stamens. They are highly attractive to birds and bees and bloom from late spring to early summer.
Bark: The bark of Knightia excelsa is smooth and dark brown when young, gradually becoming rough and fissured with age.
 
Growing Conditions:
 
Climate: Rewarewa is well-adapted to temperate climates, particularly in New Zealand. It grows best in areas with mild, frost-free winters and warm summers. It can tolerate coastal conditions but may be sensitive to severe frosts.
Sunlight: Knightia excelsa thrives in full sun to partial shade. It prefers a bright location but can tolerate some shade.
Soil: The tree prefers well-draining soils that are fertile and rich in organic matter. It can tolerate a range of soil types, including sandy, loamy, and clay soils.
Watering: Rewarewa requires regular watering, particularly during dry periods. It benefits from moist but not waterlogged soil. Once established, it becomes moderately drought-tolerant.
Maintenance: This tree is generally low-maintenance. It may benefit from occasional pruning to remove dead or crowded branches. Pruning can be done in late winter or early spring.
 
Uses in Landscaping:
 
Ornamental Tree: Knightia excelsa is often used as an ornamental tree in gardens and landscapes due to its striking flowers and attractive foliage. It provides year-round interest with its glossy leaves and colorful blooms.
Shade Tree: With its tall and spreading canopy, Knightia excelsa provides excellent shade, making it ideal for creating shaded areas in landscapes and gardens.
Mixed Borders: Can be used in mixed borders with other trees, shrubs, and perennials, adding texture, color, and structure to the planting scheme.
Ecological Restoration: Often used in ecological restoration projects to help rebuild native forests and habitats. It plays a role in supporting biodiversity and stabilizing soil.
Cultural Significance: Holds cultural significance for Māori and is used in traditional medicine and craft.