When to plant cauliflower in Manchester
Cauliflower is cold-hardy, so every date keys off Manchester's frost dates of Apr 25.
Step 1 · Sow
Start seeds indoors
Mar 14 – Apr 4
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 11 – May 2
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 10 – Jul 5
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Manchester's 183-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
FROST
FROST
APR 25
OCT 25
Common questions
When will cauliflower be ready to harvest in Manchester?
Expect to harvest from around early June (Jun 10–Jul 5) in Manchester, based on its local frost dates. Confidence 76%.
When should I start cauliflower seeds indoors in Manchester?
Start seeds indoors around mid March (Mar 14–Apr 4) in Manchester, based on its local frost dates. Confidence 80%.
When can I transplant cauliflower outdoors in Manchester?
Transplant outdoors around mid April (Apr 11–May 2) in Manchester, based on its local frost dates. Confidence 84%.
How long is the growing season in Manchester?
Manchester has roughly 183 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 84/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.