When to plant cauliflower in Manchester

Cauliflower is cold-hardy, so every date keys off Manchester's frost dates of Apr 24.
Step 1 · Sow
Start seeds indoors
Mar 13 – Apr 3
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 21 – May 12
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 20 – Jul 15
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jun 23 – Jul 7
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Aug 29 – Sep 23
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Manchester's 185-day season leaves this much room.
Cauliflower on Manchester'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 24
OCT 21

Common questions

When will cauliflower be ready to harvest in Manchester?

Expect to harvest from around mid June (Jun 20–Jul 15) in Manchester, based on its local frost dates. Confidence 73%.

When should I start cauliflower seeds indoors in Manchester?

Start seeds indoors around mid March (Mar 13–Apr 3) in Manchester, based on its local frost dates. Confidence 77%.

When can I transplant cauliflower outdoors in Manchester?

Transplant outdoors around late April (Apr 21–May 12) in Manchester, based on its local frost dates. Confidence 79%.

Can I plant cauliflower in autumn in Manchester?

Yes — Manchester supports a second, autumn sowing of cauliflower around late June (Jun 23–Jul 7), timed to mature before the first fall frost.

How long is the growing season in Manchester?

Manchester has roughly 185 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 Manchester's frost dates.

Confidence 81/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.