When to plant potato 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. Potato in San Antonio is doable with planning outdoors. 99 suitable days are enough for fast varieties (70 days) but not slow ones (125 days).

Potato

How to grow Potato San Antonio climate Weekly temperatures and windows

Where are you growing?

Tight fit

Tight fit in greenhouse

Tight fit in a cold frame

Potato in San Antonio is doable with planning outdoors. 99 suitable days are enough for fast varieties (70 days) but not slow ones (125 days).

When to plantFebruary 6 – April 17

Harvest: April 17 – September 19
Season vs crop: 99 grow days vs 70–125 needed
Typical frost (last spring – first fall): January 30 – December 24

Potato in San Antonio is doable with planning outdoors. 99 suitable days are enough for fast varieties (70 days) but not slow ones (125 days).

Planting conditions

Direct sow
Harvest

Local activity windows for this place and growing method. Blue fill is usually too cold for this plant. Dashed lines are typical last and first frost.

Suitable growing days in a row99

Days to harvest70–125 days from planting

Feb 6 – Apr 17

Direct sow

Apr 17 – Sep 19

Harvest

Activity	Window	Notes
Direct sow	Feb 6 – Apr 17	Plant outdoors in this window.
Harvest	Apr 17 – Sep 19	Expected harvest from typical days to harvest.

Direct sow
Harvest

Blue fill is usually too cold for this plant. Dashed lines are typical last and first frost (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 – 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

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 dateFebruary 6

Direct sow windowFebruary 6 – April 17

Suitable growing windowFebruary 6 – May 15 (99 days)

Expected harvestApril 17 – September 19

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 Antonio, 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 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.

Report a problem