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When to plant swiss chard in Jersey City

Swiss chard is cold-hardy, so every date keys off Jersey City's frost dates of Apr 3.
Step 1 · Sow
Start seeds indoors
Mar 6 – Mar 27
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 6 – Apr 27
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 26 – Jun 5
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Aug 13 – Aug 27
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Oct 9 – Oct 19
Maturity window for the second sowing.
Window
Days to maturity
50 – 60 d
Jersey City's 223-day season leaves this much room.
Swiss chard on Jersey City'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 3
NOV 11

Common questions

When can I sow swiss chard outdoors in Jersey City?

Direct-sow around early April (Apr 6–Apr 27) in Jersey City, based on its local frost dates. Confidence 82%.

When will swiss chard be ready to harvest in Jersey City?

Expect to harvest from around late May (May 26–Jun 5) in Jersey City, based on its local frost dates. Confidence 76%.

When should I start swiss chard seeds indoors in Jersey City?

Start seeds indoors around early March (Mar 6–Mar 27) in Jersey City, based on its local frost dates. Confidence 81%.

When can I transplant swiss chard outdoors in Jersey City?

Transplant outdoors around early April (Apr 6–Apr 27) in Jersey City, based on its local frost dates. Confidence 82%.

Can I plant swiss chard in autumn in Jersey City?

Yes — Jersey City supports a second, autumn sowing of swiss chard around mid August (Aug 13–Aug 27), timed to mature before the first fall frost.

How long is the growing season in Jersey City?

Jersey City has roughly 223 frost-free days, which is enough time to grow swiss chard to maturity outdoors.

The rule of thumb

Sow swiss chard 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 Jersey City's frost dates.

Confidence 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.
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