What Can Grow in Honolulu, HI

Honolulu's tropical climate on Oahu supports year-round growing with both tropical and cool-season crops.

Honolulu, HI is in USDA Hardiness Zone 12a. The growing season lasts about 365 days, with last frost around None and first fall frost around None. Top crops include sweet potatoes, taro, papaya.

12aUSDA Zone
365 daysFrost-Free
NoneLast Frost
NoneFirst Frost
🌱 What Grows in Honolulu
sweet potatoestaropapayabananasmangoesbeans
💡 Planting Tips

Year-round growing. Cool crops on hillsides. Tropical fruits dominate lowland gardens.

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📍 Full Zone 12a Guide 🌎 Hawaii Planting Guide

Frequently Asked Questions

Honolulu, HI is in USDA Plant Hardiness Zone 12a. Honolulu's tropical climate on Oahu supports year-round growing with both tropical and cool-season crops.

The average last spring frost in Honolulu is around None. The first fall frost typically arrives around None, giving a frost-free growing season of approximately 365 days.

Honolulu's Zone 12a climate supports growing sweet potatoes, taro, papaya, bananas, mangoes, beans. Year-round growing. Cool crops on hillsides. Tropical fruits dominate lowland gardens.

In Honolulu, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of None. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.