When to plant broccoli in Newark
Broccoli is cold-hardy, so every date keys off Newark's frost dates of Apr 3.
Step 1 · Sow
Start seeds indoors
Feb 20 – Mar 13
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 20 – Apr 10
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 19 – Jun 13
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 28 – Aug 11
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Oct 3 – Oct 28
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Newark's 223-day season leaves this much room.
Broccoli on Newark'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 3
NOV 11
Common questions
When will broccoli be ready to harvest in Newark?
Expect to harvest from around mid May (May 19–Jun 13) in Newark, based on its local frost dates. Confidence 77%.
When should I start broccoli seeds indoors in Newark?
Start seeds indoors around mid February (Feb 20–Mar 13) in Newark, based on its local frost dates. Confidence 82%.
When can I transplant broccoli outdoors in Newark?
Transplant outdoors around mid March (Mar 20–Apr 10) in Newark, based on its local frost dates. Confidence 86%.
Can I plant broccoli in autumn in Newark?
Yes — Newark supports a second, autumn sowing of broccoli around late July (Jul 28–Aug 11), timed to mature before the first fall frost.
How long is the growing season in Newark?
Newark has roughly 223 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 Newark's frost dates.
Confidence 86/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.