When to plant fava bean in San Diego

Local planting windows for Fava bean in San Diego. Frost-free days: 365. Fava bean in San Diego is a good fit outdoors. The suitable growing window of 276 days covers the 80–110 days this plant usually needs.

Fava bean

How to grow Fava bean San Diego climate Weekly temperatures and windows

Where are you growing?

Comfortable

Comfortable in greenhouse

Comfortable in a cold frame

Fava bean in San Diego is a good fit outdoors. The suitable growing window of 276 days covers the 80–110 days this plant usually needs.

When to plantOctober 4 – May 26

Harvest: March 22 – October 4
Season vs crop: 276 grow days vs 80–110 needed

Fava bean in San Diego is a good fit outdoors. The suitable growing window of 276 days covers the 80–110 days this plant usually needs.

Planting conditions

Direct sow
Harvest

Local activity windows for this place and growing method.

Suitable growing days in a row276

Days to harvest80–110 days from seed

Oct 4 – May 26

Direct sow

Mar 22 – Oct 4

Harvest

Activity	Window	Notes
Direct sow	Oct 4 – May 26	Plant outdoors in this window.
Harvest	Mar 22 – Oct 4	Expected harvest from typical days to harvest.

Direct sow
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 – 21 °C59 – 70 °F15 – 21 °C (59 – 70 °F)) and tolerable (4 – 24 °C39 – 75 °F4 – 24 °C (39 – 75 °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 dateOctober 4

Direct sow windowOctober 4 – May 26

Suitable growing windowOctober 4 – July 6 (276 days)

Expected harvestMarch 22 – October 4

How these dates are judged

Ideal conditions: Daytime air from 15 – 21 °C59 – 70 °F15 – 21 °C (59 – 70 °F).
Suitable conditions: Daytime air from 4 – 24 °C39 – 75 °F4 – 24 °C (39 – 75 °F).
Last frost and first frost: Typical spring and fall frost dates for San Diego, shown in the key dates.
Days to harvest: 80–110 days from seed, 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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