When to plant cauliflower in Amarillo

Cauliflower is cold-hardy, so every date keys off Amarillo's frost dates of Apr 16.
Step 1 · Sow
Start seeds indoors
Mar 5 – Mar 26
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 2 – Apr 23
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 1 – Jun 26
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jun 25 – Jul 9
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Aug 31 – Sep 25
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Amarillo's 187-day season leaves this much room.
Cauliflower on Amarillo's growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
APR 16
OCT 24

Common questions

When will cauliflower be ready to harvest in Amarillo?

Expect to harvest from around early June (Jun 1–Jun 26) in Amarillo, based on its local frost dates. Confidence 80%.

When should I start cauliflower seeds indoors in Amarillo?

Start seeds indoors around early March (Mar 5–Mar 26) in Amarillo, based on its local frost dates. Confidence 85%.

When can I transplant cauliflower outdoors in Amarillo?

Transplant outdoors around early April (Apr 2–Apr 23) in Amarillo, based on its local frost dates. Confidence 89%.

Can I plant cauliflower in autumn in Amarillo?

Yes — Amarillo supports a second, autumn sowing of cauliflower around late June (Jun 25–Jul 9), timed to mature before the first fall frost.

How long is the growing season in Amarillo?

Amarillo has roughly 187 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 Amarillo's frost dates.

Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.