When to plant sweet potato in Los Angeles

In Los Angeles, typical last spring frost is January 15 and typical first fall frost is January 1. Typical last spring frost: January 15. Sweet potato in Los Angeles is a good fit outdoors. The suitable growing window of 160 days covers the 85–140 days this plant usually needs.

Sweet potato

How to grow Sweet potato Los Angeles climate Weekly temperatures and windows

Where are you growing?

Comfortable

Comfortable in greenhouse

Tight fit in a cold frame

Sweet potato in Los Angeles is a good fit outdoors. The suitable growing window of 160 days covers the 85–140 days this plant usually needs.

When to plantApril 18 – June 12

Harvest: July 12 – October 30
Season vs crop: 160 grow days vs 85–140 needed
Typical frost (last spring – first fall): January 15 – January 1

Sweet potato in Los Angeles is a good fit outdoors. The suitable growing window of 160 days covers the 85–140 days this plant usually needs.

Planting conditions

Suitable growing days in a row160

Days to harvest85–140 days from planting

No planting window is recorded for this place.

Too cold
Frost line

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 (21 – 32 °C70 – 90 °F21 – 32 °C (70 – 90 °F)) and tolerable (16 – 35 °C61 – 95 °F16 – 35 °C (61 – 95 °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 15

Low-risk last spring frostFebruary 14

Typical first fall frostJanuary 1

Low-risk first fall frostDecember 19

Frost-free days350

Earliest indoor seed startMarch 7

Latest indoor seed startMay 1

Transplant outdoorsApril 18 – June 12

Direct sow windownot recommended here

Suitable growing windowApril 18 – September 24 (160 days)

Expected harvestJuly 12 – October 30

How these dates are judged

Ideal conditions: Daytime air from 21 – 32 °C70 – 90 °F21 – 32 °C (70 – 90 °F).
Suitable conditions: Daytime air from 16 – 35 °C61 – 95 °F16 – 35 °C (61 – 95 °F).
Last frost and first frost: Typical spring and fall frost dates for Los Angeles, shown in the key dates.
Days to harvest: 85–140 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 Los Angeles

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 Los Angeles use ERA5-Land cell 34.05, -118.25. How we calculated this · Algorithm 2026-10-season-10.

Report a problem