Frost Dates & Planting Calendars in Hawaii
Nearly all of Hawaii is frost-free per NOAA 1991–2020 climate normals. Pick a city below for its monthly temperatures and year-round planting guidance.
| City | Last Spring Frost (typical) | First Fall Frost (typical) | Growing Season | USDA Zone |
|---|---|---|---|---|
| Honolulu | Frost-free | Frost-free | Year-round | 12b |
| East Honolulu | Frost-free | Frost-free | Year-round | 12b |
| Pearl City | Frost-free | Frost-free | Year-round | 12a |
| Makakilo / Kapolei / Honokai Hale | Frost-free | Frost-free | Year-round | 12b |
| Hilo | Frost-free | Frost-free | Year-round | 11a |
| Joint Base Pearl Harbor Hickam | Frost-free | Frost-free | Year-round | 12b |
| Aliamanu / Salt Lakes / Foster Village | Frost-free | Frost-free | Year-round | 12a |
| Kailua | Frost-free | Frost-free | Year-round | 12b |
| Waipahu | Frost-free | Frost-free | Year-round | 12a |
| 'Ewa Gentry-West Loch | Frost-free | Frost-free | Year-round | 12b |
| Kaneohe | Frost-free | Frost-free | Year-round | 12b |
| Makiki / Lower Punchbowl / Tantalus | Frost-free | Frost-free | Year-round | 12b |
| Hawai'i Kai | Frost-free | Frost-free | Year-round | 12b |
| Mililani Town | Frost-free | Frost-free | Year-round | 12a |
| Kahului | Frost-free | Frost-free | Year-round | 12b |
| Mo'ili'ili | Frost-free | Frost-free | Year-round | 12b |
| Manoa | Frost-free | Frost-free | Year-round | 12b |
| 'Ewa Gentry | Frost-free | Frost-free | Year-round | 12b |
| Wahiawa-Whitmore | Frost-free | Frost-free | Year-round | 12a |
| Mililani Mauka | Frost-free | Frost-free | Year-round | 12a |
| Makakilo-Makaiwa Hills-Kunia | Frost-free | Frost-free | Year-round | 12b |
| Kihei | Frost-free | Frost-free | Year-round | 12b |
| Kaimuki | Frost-free | Frost-free | Year-round | 12b |
| Kalihi Valley | Frost-free | Frost-free | Year-round | 12b |
| Schofield-Wheeler | Frost-free | Frost-free | Year-round | 12a |
| Waikiki | Frost-free | Frost-free | Year-round | 12b |
| Diamond Head / Kapahulu / Saint Louis Heights | Frost-free | Frost-free | Year-round | 12b |
| Niu Valley | Frost-free | Frost-free | Year-round | 12b |
| Ala Moana - Kaka'ako | Frost-free | Frost-free | Year-round | 12b |
| Makakilo | Frost-free | Frost-free | Year-round | 12b |
| Mililani Mauka / Launani Valley | Frost-free | Frost-free | Year-round | 12a |
| Wahiawa | Frost-free | Frost-free | Year-round | 12a |
| 'Ewa Beach | Frost-free | Frost-free | Year-round | 12b |
| Schofield Barracks | Frost-free | Frost-free | Year-round | 12a |
| Kuliouou - Kalani Iki | Frost-free | Frost-free | Year-round | 12b |
| Koolauloa | Frost-free | Frost-free | Year-round | 12b |
| Kapolei Villages | Frost-free | Frost-free | Year-round | 12b |
| Makakilo City | Frost-free | Frost-free | Year-round | 12b |
| Wailuku | Frost-free | Frost-free | Year-round | 12b |
| Kapolei | Frost-free | Frost-free | Year-round | 12b |
| Royal Kunia | Frost-free | Frost-free | Year-round | 12a |
| Halawa | Frost-free | Frost-free | Year-round | 12a |
| Waimalu | Frost-free | Frost-free | Year-round | 12a |
| Halawa Heights | Frost-free | Frost-free | Year-round | 12a |
| Waianae | Frost-free | Frost-free | Year-round | 12b |
| Nanakuli | Frost-free | Frost-free | Year-round | 12b |
| Palolo | Frost-free | Frost-free | Year-round | 12b |
| Kailua-Kona | Frost-free | Frost-free | Year-round | 12b |
| Lahaina | Frost-free | Frost-free | Year-round | 12b |
| Waipio | Frost-free | Frost-free | Year-round | 12a |
| Hawaiian Paradise Park | Frost-free | Frost-free | Year-round | 12b |
| Village Park | Frost-free | Frost-free | Year-round | 12a |
| Kapa'a | Frost-free | Frost-free | Year-round | 12a |
| Kaka'ako | Frost-free | Frost-free | Year-round | 12b |
| Kalaoa | Frost-free | Frost-free | Year-round | 12b |
| Marine Corps Base Hawaii - MCBH | Frost-free | Frost-free | Year-round | 13a |
| Ma'ili | Frost-free | Frost-free | Year-round | 12b |
| Moanalua | Frost-free | Frost-free | Year-round | 12b |
| Makaha-Ka'ena | Frost-free | Frost-free | Year-round | 12b |
| 'Aiea | Frost-free | Frost-free | Year-round | 12a |
| Haiku-Pauwela | Frost-free | Frost-free | Year-round | 12a |
| Waimea | Frost-free | Frost-free | Year-round | 11a |
When to Plant in Hawaii
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- Corn
- Green Beans
- Peas
- Lettuce
- Spinach
- Kale
- Arugula
- Swiss Chard
- Broccoli
- Cauliflower
- Cabbage
- Brussels Sprouts
- Carrots
- Beets
- Radishes
- Turnips
- Onions
- Garlic
- Potatoes
- Sweet Potatoes
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias