Planting calendar

When to plant garlic in Hawaii

Hawaii spans USDA hardiness zones 10-13. Average last spring frost: no average frost in most of the state. This calendar gives you the indoor start, transplant, and direct-sow dates for Allium sativum.

Hawaii planting dates for garlic

Dates for Hawaii vary significantly by region. Use the average frost date lookup for your specific ZIP code, then apply the standard offsets: direct sow 24 weeks after last frost.

Why these dates

Garlic is fall-planted. Plant cloves 4-6 weeks before the ground freezes (October-November in most zones). Harvest the following July when the bottom 3-4 leaves brown.

The dates above are anchored to Hawaii's average last spring frost date of no-frost, with offsets standard across university Extension publications. For zone-specific local timing, use the frost date lookup tool with your ZIP code.

More on growing garlic

The full growing guide for garlic - varieties, soil, fertilization, pests, harvest, storage - is here: Garlic growing guide.

More Hawaii planting information

Sources