When to plant broccoli in Frankfurt
Broccoli is cold-hardy, so every date keys off Frankfurt'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 10 – May 1
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 9 – Jul 4
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Frankfurt's 175-day season leaves this much room.
Broccoli on Frankfurt'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 24
OCT 16
Common questions
When will broccoli be ready to harvest in Frankfurt?
Expect to harvest from around early June (Jun 9–Jul 4) in Frankfurt, based on its local frost dates. Confidence 65%.
When should I start broccoli seeds indoors in Frankfurt?
Start seeds indoors around mid March (Mar 13–Apr 3) in Frankfurt, based on its local frost dates. Confidence 68%.
When can I transplant broccoli outdoors in Frankfurt?
Transplant outdoors around early April (Apr 10–May 1) in Frankfurt, based on its local frost dates. Confidence 72%.
How long is the growing season in Frankfurt?
Frankfurt has roughly 175 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 Frankfurt's frost dates.
Confidence 72/100 · NASA POWER (modeled) · 1991–2020 · frost dates are probabilities, not guarantees.