When to plant potato in San Diego

Local planting windows for Potato in San Diego. Frost-free days: 365. Potato in San Diego is a good fit outdoors. The suitable growing window of 365 days covers the 70–125 days this plant usually needs.

Potato

How to grow Potato San Diego climate Weekly temperatures and windows

Where are you growing?

Comfortable

Comfortable in greenhouse

Comfortable in a cold frame

Potato in San Diego is a good fit outdoors. The suitable growing window of 365 days covers the 70–125 days this plant usually needs.

When to plantJanuary 1 – December 31

Harvest: March 12 – June 4
Season vs crop: 365 grow days vs 70–125 needed

Potato in San Diego is a good fit outdoors. The suitable growing window of 365 days covers the 70–125 days this plant usually needs.

Planting conditions

Direct sow
Grow outdoors
Harvest

Local activity windows for this place and growing method.

Suitable growing days in a row365

Days to harvest70–125 days from planting

Jan 1 – Dec 31

Direct sow

Jan 1 – Mar 11

Grow outdoors

Mar 12 – Jun 4

Harvest

Activity	Window	Notes
Direct sow	Jan 1 – Dec 31	Plant outdoors in this window.
Grow outdoors	Jan 1 – Mar 11	Plants grow outdoors until harvest.
Harvest	Mar 12 – Jun 4	Expected harvest from typical days to harvest.

Direct sow
Grow outdoors
Harvest

Adjust a week or two for your conditions.

Planting and growing across the year

Planting is the sow / plant-out window. Growing is daytime air versus this plant’s ideal (15 – 24 °C59 – 75 °F15 – 24 °C (59 – 75 °F)) and tolerable (7 – 30 °C45 – 86 °F7 – 30 °C (45 – 86 °F)) ranges.

Ideal / plantable
Tolerable
Too cold
Too hot
Outside window

Planting uses sow / plant-out rules; growing shows daytime air against this plant’s ideal and tolerable ranges.

Key dates

Frost-free days365

Outdoor sow dateJanuary 1

Direct sow windowJanuary 1 – December 31

Suitable growing windowJanuary 1 – December 31 (365 days)

Expected harvestMarch 12 – June 4

How these dates are judged

Ideal conditions: Daytime air from 15 – 24 °C59 – 75 °F15 – 24 °C (59 – 75 °F).
Suitable conditions: Daytime air from 7 – 30 °C45 – 86 °F7 – 30 °C (45 – 86 °F).
Last frost and first frost: Typical spring and fall frost dates for San Diego, shown in the key dates.
Days to harvest: 70–125 days from planting, from typical days to harvest.
Sowing window: Dated sow and harvest bars use frost dates, soil minima, night limits, and last-sow count-back from typical crop timing. Air ratings on the weekly chart colour only weeks inside that same window — see weekly temperatures and windows.

Other plants for San Diego

Calculated by Plan & Plant. Method. Data 35 seasons (1991–2025).

Frost and suitability dates are typical figures from climate statistics.

Based on 35 years (1991–2025) of ERA5-Land data from Open-Meteo, for an area of about 10 km. Typical dates, not a guarantee.

Dates for San Diego use ERA5-Land cell 32.72, -117.16. How we calculated this · Algorithm 2026-10-season-10.

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