The Complete Guide to Onion Farming in Hawaii
Can you grow Onion in Hawaii? Well suited. Ideal soil pH 4.3 - 8.3, ~19.42 t/ha yield, $374 - $1,046 / t market range. Soil, climate and ROI data.
Is Onion viable in Hawaii?
Onion is well suited to Hawaii: growing-season temperatures (~20°C) and rainfall (~4269 mm) fall within its 12–25°C range. Onion is an annual vegetables that performs best around 12 - 25 °C with a seasonal water requirement of 350 mm / season. Run a coordinate-level audit for the exact figures at your field.
Growing Onion in Hawaii: what to expect
Hawaii is wetter (~4269 mm/yr) than Onion's ~350 mm need — prioritise good drainage to avoid waterlogging and root disease. Onion can be established year-round in Hawaii's frost-free climate, ideally at the start of the wet season.
Optimal Soil & Climate Conditions for Onion
To maximize your Onion yield in Hawaii, match your field to the crop's actual requirements below before planting.
| Parameter | Onion Requirement |
|---|---|
| Soil pH | 4.3 - 8.3 |
| Water Requirement | 350 mm / season |
| Optimal Temperature | 12 - 25 °C |
| Waterlogging Tolerance | Intolerant |
| Nitrogen Demand | Moderate |
Expected Yield & Financial Forecasting
Lenders and growers evaluating Onion in Hawaii weigh production against live commodity prices. The figures below are this crop's typical baselines.
| Metric | Estimated Value |
|---|---|
| Average Yield / Hectare | 19.42 t/ha |
| Market Price | $374 - $1,046 / t |
| Estimated Gross Revenue | $13,788 / Hectare |
Onion in other regions
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