Start indoors
No supported crops start indoors in April for ZIP 92101.
Month planting calendar
What to plant in April in San Diego (92101)
In San Diego, ZIP 92101, zone 10b, here is what you can start indoors, transplant, or direct-sow in April, and what to wait on until later.
Source: san-diego-lindbergh frost station, USDA zone 10b, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.
Transplant
No supported crops transplant in April for ZIP 92101.
Direct-sow
No supported crops direct-sow in April for ZIP 92101.