Month planting calendar

What to plant in May in Honolulu (96813)

In Honolulu, ZIP 96813, zone 12b, here is what you can start indoors, transplant, or direct-sow in May, and what to wait on until later.

Source: honolulu-intl frost station, USDA zone 12b, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.