Kukui Nut: The Meaning of Hawaiʻi's Light-Giving State Tree

Long before the first oil lamp reached the islands, Hawaiians lit the darkness with a tree. The kukui — the candlenut — carries kernels so rich with oil that a single nut burns like a small flame. Its name became the Hawaiian word for light itself, and its meaning still glows through island language, ceremony, and craft.

What is the kukui, and why is it called the candlenut?

The kukui (Aleurites moluccana) is a large tree easy to spot on Hawaiian hillsides: its pale, silvery-green leaves catch the light and stand out against the darker forest around them. It is one of the canoe plants — species that the first Polynesian voyagers carried with them across the Pacific, deliberately, because a plant this useful was worth the space in a sailing canoe.

The name candlenut comes from the nut's remarkable oil content. Inside the hard shell sits a kernel so fatty that, when dried and skewered, it will hold a flame. Hawaiians strung the shelled nuts onto the stiff midrib of a coconut frond and lit them one at a time, top to bottom, each nut burning for a few minutes before the flame moved to the next — a living clock as much as a lamp.

Why is the kukui the state tree of Hawaiʻi?

Hawaiʻi named the kukui its official state tree in 1959, the same year it became a state. The choice was not about beauty alone. The designation honored the tree for the sheer multiplicity of its uses to Hawaiians — for light, fuel, medicine, dye, and ornament — alongside the distinctive beauty of its light-green foliage that softens so many island slopes. In other words, the kukui was chosen because it had already given so much.

What does the kukui symbolize in Hawaiian culture?

Because the tree gave light, its meaning grew far beyond the physical flame. The kukui became a symbol of ʻike — knowledge, insight, enlightenment — and of the guidance a good teacher or leader offers. To bring light into darkness is, in Hawaiian thought, to bring understanding. The kukui also carries associations of protection and peace.

Spiritually, the kukui is understood as a kinolau, or physical embodiment, of Lono, the akua tied to rain, agriculture, fertility, and peace, and it is shared as a body form with the shape-shifting kupua Kamapuaʻa. These connections gave the tree a place not only in daily life but in the sacred order of the islands.

A tree that turns night into work, and darkness into learning, becomes more than firewood — it becomes a way of understanding the world.

How did Hawaiians actually use the kukui tree?

Almost no part of the kukui went unused. The oil-rich kernels lit stone lamps and torches. Roasted and pounded with salt, those same kernels became ʻinamona, a savory relish that Hawaiians still stir into fresh ʻahi poke today. The bark and roots yielded dyes; the sap and inner materials sealed and treated kapa cloth and canoes; parts of the tree were used in traditional medicine. Even the polished shells and leaves found their way into lei and adornment — part of the same living tradition you can trace through many native Hawaiian plants.

This is what people mean when they call the kukui a plant of abundance. It answered a whole range of needs — light, food, healing, craft — from a single species growing right on the hillside.

What does a kukui nut lei mean?

The kukui nut lei is one of the most recognizable pieces of Hawaiian adornment: a strand of deep, glossy black (or sometimes brown) polished nuts. But its meaning runs deeper than its look. Traditionally, giving a kukui nut lei signals respect, honor, and a real bond between people — friends, family, or lovers — and it has long been associated with leadership and guidance, fitting for the tree of light.

That meaning is worth remembering when you shop. A mass-produced strand of imported shells and a lei made with intention are not the same object, even if they look alike. The value of a kukui piece lives in the story it carries — the same principle that guides genuinely handmade Hawaiian jewelry, where craft and meaning matter more than the material's price.

How can you honor the kukui today?

You do not need to live in Hawaiʻi to respect what the kukui represents. Learn the word and its meaning. Notice the tree's silver-green crown next time you are on the islands. Choose pieces made by people who know the culture rather than souvenirs that borrow its look. And when you receive a lei of any kind, receive it as it is meant — as a gift of connection, not a costume. The kukui reminds us that light, knowledge, and generosity are things you pass on.

Keep reading from the journal

• Native Hawaiian Plants You Should Know
• Lono: Hawaiian God of Peace, Rain, and the Makahiki Harvest
• Hawaiian Lei Meaning: Flowers, Etiquette & the Spirit of Aloha
• Hawaiian Jewelry Meaning: Symbols, Materials & How to Spot Authentic Pieces
• Hibiscus: The State Flower of Hawaiʻi and Its Story