Tree Care in Hawaii
TreeCareAdvisors covers 121 communities across Hawaii with localized tree care data, species guides, pest alerts, and cost estimates.
Common Trees in Hawaii
Koa
Hawaii's most valuable native tree - beautiful wood, nitrogen-fixing, reforestation priority
Ohia Lehua
Sacred native tree - threatened by Rapid Ohia Death fungus
Kukui (Candlenut)
State tree of Hawaii, large spreading canopy, oily nuts
Hala (Pandanus)
Coastal native, prop roots, culturally important for weaving
Wiliwili
Native dryland tree, coral-like flowers, erythrina gall wasp nearly wiped them out
Active Tree Threats in Hawaii
Rapid Ohia Death (ROD) critical
Affects: Ohia Lehua (Metrosideros polymorpha) - the most important native forest tree in Hawaii
Two Ceratocystis fungi that kill ohia trees by clogging their vascular system. Trees can die within weeks. Ohia forms 80% of Hawaii's native forest canopy - its loss would be catastrophic for the ec...
Erythrina Gall Wasp high
Affects: Erythrina species - wiliwili (native), coral trees (ornamental)
Tiny wasp from Africa that lays eggs in erythrina leaves, causing severe galling that defoliates and can kill trees. Nearly wiped out native wiliwili trees before biological control wasps were release...
Coconut Rhinoceros Beetle high
Affects: Coconut palm (primary), other palms, potentially other plants
Large beetle (2 inches) that bores into the crowns of coconut palms to feed on sap. Damages the growing point, reducing coconut production and potentially killing the palm. A serious threat to Hawaii'...
When to Prune in Hawaii
Year-round in tropical climates. Best to prune before hurricane season (June-November)
Tree Service Tools
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Cost Calculator
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Species Guides
Care guides for 134 tree species with photos and maps.