When to plant cauliflower in Edinburgh

Cauliflower is cold-hardy, so every date keys off Edinburgh's frost dates of Apr 18.
Step 1 · Sow
Start seeds indoors
Mar 7 – Mar 28
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 4 – Apr 25
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 3 – Jun 28
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jun 26 – Jul 10
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 1 – Sep 26
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Edinburgh's 201-day season leaves this much room.
Cauliflower on Edinburgh'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 18
OCT 30

Common questions

When will cauliflower be ready to harvest in Edinburgh?

Expect to harvest from around early June (Jun 3–Jun 28) in Edinburgh, based on its local frost dates. Confidence 80%.

When should I start cauliflower seeds indoors in Edinburgh?

Start seeds indoors around early March (Mar 7–Mar 28) in Edinburgh, based on its local frost dates. Confidence 85%.

When can I transplant cauliflower outdoors in Edinburgh?

Transplant outdoors around early April (Apr 4–Apr 25) in Edinburgh, based on its local frost dates. Confidence 89%.

Can I plant cauliflower in autumn in Edinburgh?

Yes — Edinburgh supports a second, autumn sowing of cauliflower around late June (Jun 26–Jul 10), timed to mature before the first fall frost.

How long is the growing season in Edinburgh?

Edinburgh has roughly 201 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 Edinburgh's frost dates.

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