Start indoors
No supported crops start indoors in September for ZIP 95113.
Month planting calendar
What to plant in September in San Jose (95113)
In San Jose, ZIP 95113, zone 9b, here is what you can start indoors, transplant, or direct-sow in September, and what to wait on until later.
Source: san-jose-mineta frost station, USDA zone 9b, 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 September for ZIP 95113.
Direct-sow
No supported crops direct-sow in September for ZIP 95113.