San Diego Gardening Guide (2026)
Coastal mild; minimal frost risk.
Quick answer (San Diego): Gardeners here work in about a 0-day frost-free window around zone 10. State context: California (zones 5–11). Start warm crops indoors ~6 weeks before the last frost of 12/31.
Your San Diego planting calendar
Pre-filled with San Diego's frost dates. Choose a crop to print your plan.
In California (typical zone 5–11, last frost ≈ Dec 31, first frost ≈ Dec 31, 0-day season), your Tomato plan:
Month-by-month (California, 2026)
| Month | Action |
|---|---|
| Jan | Sow · Transplant |
| Feb | — |
| Mar | Harvest |
| Apr | — |
| May | — |
| Jun | — |
| Jul | — |
| Aug | — |
| Sep | — |
| Oct | — |
| Nov | Start indoors |
| Dec | — |
Start indoors 6 weeks before last frost; transplant after soil warms. Zones 3–13 suitable. Dates are typical; confirm with your county extension and watch the 10-day forecast.
Common pests near San Diego
Pre-filled to California. Pick a pest for signs, organic-first treatment, and a printable IPM card.
Aphids
Crops that fit zone 10
Vegetables and herbs suited to your metro zone — open any for a state-specific planting card: