When to plant cauliflower in San Diego
Cauliflower is cold-hardy, so every date keys off San Diego's frost dates.
Step 1 · Sow
Direct sow outdoors
Jan 1 – Jan 22
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Mar 2 – Mar 27
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
From sowing to first pick.
Common questions
When can I sow cauliflower outdoors in San Diego?
Direct-sow around early January (Jan 1–Jan 22) in San Diego, based on its local frost dates. Confidence 81%.
When will cauliflower be ready to harvest in San Diego?
Expect to harvest from around early March (Mar 2–Mar 27) in San Diego, based on its local frost dates. Confidence 76%.
How long is the growing season in San Diego?
San Diego has roughly 365 frost-free days, which is enough time to grow cauliflower to maturity outdoors.
The rule of thumb
Sow cauliflower as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and San Diego's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.