Corkwood

Corkwood (Entelea arborescens) is a fast-growing, evergreen shrub or small tree belonging to the Malvaceae family. It is a distinctive plant known for its large, heart-shaped, bright green leaves and its attractive clusters of white flowers that appear throughout the spring season.

Native to New Zealand, this plant is commonly referred to by its Māori name, "whau". Its natural habitat consists of coastal forests and lowland areas where the climate is temperate and humid. It thrives in locations that are sheltered from harsh coastal winds and frost, reflecting its adaptation to mild environments.

Botanically, Entelea arborescens is characterized by its soft, wood-like texture and its unique fruits, which are capsules covered in stiff, bristle-like hairs. These fruits can persist on the plant for a significant time, adding to its visual interest during the non-flowering stages.

Cultivation requires rich, well-draining soil and a consistent moisture supply. It is not cold-hardy, making it suitable for outdoor gardens only in frost-free climates. In cooler zones, it is typically managed as a container plant, requiring careful monitoring of light levels and protection from cold drafts during winter months.

The historical economic value of the wood is significant due to its extremely low density, which is even lower than that of cork. Māori people historically utilized this lightweight wood for crafting fishing net floats and other equipment requiring buoyancy. Today, it remains primarily a botanical curiosity for garden enthusiasts.

• Climate preference: Mild, frost-free zones.
• Light requirements: Partial shade to full sun.
• Soil type: Humus-rich, moist, and well-drained.
• Maintenance: Pruning is recommended to maintain a compact shape.
• Common pests: Aphids and scale insects in indoor environments.