🌿 Morphology
🌞 Growing conditions
🌍 Origin and family
🌾 Uses
Warning: Despite the care taken in writing this sheet, it is essential to cross-reference sources before using or consuming any plant. When in doubt, consult a qualified professional
Permaculture uses
Wiliwili wood is traditionally used for surfboards and canoes, demonstrating its lightweight and buoyant properties. It is used for lei making, and the seeds are used for jewelry. It is a nitrogen fixer, improving soil fertility. The flowers provide nectar for native Hawaiian birds.
Permapeople description
A species of flowering tree in the Fabaceae family that is endemic to the Hawaiian Islands.
Botanical description
Erythrina sandwicensis is a deciduous tree endemic to Hawaii, belonging to the Fabaceae (legume) family. It typically grows to a height of 15-50 feet. The trunk and branches are often thorny, especially when young. The leaves are trifoliate, meaning they consist of three leaflets. The flowers are pea-like and range in color from shades of red, orange, yellow, and sometimes white. Flowering occurs during the dry season. The seeds are bright red or orange and are contained in pods. Wiliwili is well-adapted to dry, coastal environments.
Companion planting
As a nitrogen fixer, wiliwili can be a beneficial companion plant for other plants that benefit from increased nitrogen in the soil. Avoid planting near plants that require acidic soil conditions.
Propagation methods
Propagation is typically done by seed. Scarification of the seed coat improves germination rates. Cuttings are also possible, though less common.
History and traditions
In Hawaiian culture, wiliwili wood was prized for its lightness and buoyancy, making it ideal for surfboards, canoe outriggers, and fishing floats. The seeds were used for lei making and jewelry. The blooming of wiliwili was traditionally used as a sign of the start of the shark run.
Usage calendar
Flowering typically occurs during the dry season (summer and fall). Seed pods mature after flowering. Planting is best done during the wet season to establish the tree.