Month planting calendar

What to plant in January in San Francisco (94102)

In San Francisco, ZIP 94102, zone 10a, here is what you can start indoors, transplant, or direct-sow in January, and what to wait on until later.

Source: san-francisco-downtown frost station, USDA zone 10a, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.