When to plant cauliflower in Saint Paul

Cauliflower is cold-hardy, so every date keys off Saint Paul's frost dates of Apr 22.
Step 1 · Sow
Start seeds indoors
Mar 11 – Apr 1
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 20 – May 11
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 19 – Jul 14
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jun 18 – Jul 2
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Aug 24 – Sep 18
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Saint Paul's 174-day season leaves this much room.
Cauliflower on Saint Paul'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 22
OCT 12

Common questions

When will cauliflower be ready to harvest in Saint Paul?

Expect to harvest from around mid June (Jun 19–Jul 14) in Saint Paul, based on its local frost dates. Confidence 76%.

When should I start cauliflower seeds indoors in Saint Paul?

Start seeds indoors around mid March (Mar 11–Apr 1) in Saint Paul, based on its local frost dates. Confidence 80%.

When can I transplant cauliflower outdoors in Saint Paul?

Transplant outdoors around mid April (Apr 20–May 11) in Saint Paul, based on its local frost dates. Confidence 81%.

Can I plant cauliflower in autumn in Saint Paul?

Yes — Saint Paul supports a second, autumn sowing of cauliflower around mid June (Jun 18–Jul 2), timed to mature before the first fall frost.

How long is the growing season in Saint Paul?

Saint Paul has roughly 174 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 Saint Paul's frost dates.

Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.