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Department of Water Supply
Maui Planting Guidelines
Plant Growth Zones
The Maui County Planting Plan and the Department of Water Supply have compiled a system of five zones of plant growth for Maui County.
Wet areas on the windward side of the island. More than 40 inches of rain per year. Higher than 3,000 feet.
Cool, dry areas in higher elevations (above 1,000 feet). 20 to 40 inches of rain per year.
Low, drier areas, warm to hot. Less than 20 inches of rain per year. Sea level to 1,000 feet.
Lower elevations which are wetter due to proximity of mountains. 1,000 to 3,000 feet.
Salt spray zones in coastal areas on the windward side.
Propagation / Planting Out
Places to See Native Plants
Plants to Avoid
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