When to plant broccoli in Dunedin
Broccoli is cold-hardy, so every date keys off Dunedin's frost dates of Oct 18.
Step 1 · Sow
Start seeds indoors
Sep 6 – Sep 27
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Oct 4 – Oct 25
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Dec 3 – Dec 28
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Dunedin's 178-day season leaves this much room.
Broccoli on Dunedin'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
OCT 18
APR 14
Common questions
When will broccoli be ready to harvest in Dunedin?
Expect to harvest from around early December (Dec 3–Dec 28) in Dunedin, based on its local frost dates. Confidence 61%.
When should I start broccoli seeds indoors in Dunedin?
Start seeds indoors around early September (Sep 6–Sep 27) in Dunedin, based on its local frost dates. Confidence 65%.
When can I transplant broccoli outdoors in Dunedin?
Transplant outdoors around early October (Oct 4–Oct 25) in Dunedin, based on its local frost dates. Confidence 68%.
How long is the growing season in Dunedin?
Dunedin has roughly 178 frost-free days, which is enough time to grow broccoli to maturity outdoors.
The rule of thumb
Sow broccoli 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 Dunedin's frost dates.
Confidence 68/100 · NASA POWER (modeled) · 1991–2020 · frost dates are probabilities, not guarantees.