When to plant fava bean in San Antonio

In San Antonio, typical last spring frost is January 30 and typical first fall frost is December 24. Typical last spring frost: January 30. Fava bean in San Antonio is not realistic outdoors: 60 suitable days are fewer than the 80 days this plant usually needs.

Fava bean

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

Where are you growing?

Not realistic outdoors

Not realistic in greenhouse

Not realistic in a cold frame

Fava bean in San Antonio is not realistic outdoors: 60 suitable days are fewer than the 80 days this plant usually needs.

When to plantJanuary 23 – April 17

Harvest: April 13 – August 26
Season vs crop: 60 grow days vs 80–110 needed
Typical frost (last spring – first fall): January 30 – December 24

Fava bean in San Antonio is not realistic outdoors: 60 suitable days are fewer than the 80 days this plant usually needs.

Cover methods on this page (fleece, cold frame, unheated greenhouse) do not add enough season for this crop here. Pick another plant from the list below, or use a heated greenhouse.

Planting conditions

Direct sow
Harvest

Local activity windows for this place and growing method. Dashed lines are typical last and first frost.

Suitable growing days in a row60

Days to harvest80–110 days from seed

No planting window is recorded for this place.

Too cold
Frost line

Based on average frost dates (35 seasons (1991–2025)). 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

Typical last spring frostJanuary 30

Low-risk last spring frostMarch 6

Typical first fall frostDecember 24

Low-risk first fall frostDecember 4

Frost-free days327

Outdoor sow dateJanuary 23

Direct sow windowJanuary 23 – April 17

Suitable growing windowJanuary 23 – March 23 (60 days)

Expected harvestApril 13 – August 26

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 Antonio, 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 Antonio

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 Antonio use ERA5-Land cell 29.42, -98.49. How we calculated this · Algorithm 2026-10-season-10.

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