When to plant swiss chard in Norfolk

Swiss chard is cold-hardy, so every date keys off Norfolk's frost dates of Mar 13.
Step 1 · Sow
Start seeds indoors
Feb 13 – Mar 6
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Feb 27 – Mar 20
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Apr 18 – Apr 28
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Aug 24 – Sep 7
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Oct 20 – Oct 30
Maturity window for the second sowing.
Window
Days to maturity
50 – 60 d
Norfolk's 262-day season leaves this much room.
Swiss chard on Norfolk'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
MAR 13
NOV 24

Common questions

When can I sow swiss chard outdoors in Norfolk?

Direct-sow around late February (Feb 27–Mar 20) in Norfolk, based on its local frost dates. Confidence 86%.

When will swiss chard be ready to harvest in Norfolk?

Expect to harvest from around mid April (Apr 18–Apr 28) in Norfolk, based on its local frost dates. Confidence 77%.

When should I start swiss chard seeds indoors in Norfolk?

Start seeds indoors around mid February (Feb 13–Mar 6) in Norfolk, based on its local frost dates. Confidence 82%.

When can I transplant swiss chard outdoors in Norfolk?

Transplant outdoors around late February (Feb 27–Mar 20) in Norfolk, based on its local frost dates. Confidence 86%.

Can I plant swiss chard in autumn in Norfolk?

Yes — Norfolk supports a second, autumn sowing of swiss chard around late August (Aug 24–Sep 7), timed to mature before the first fall frost.

How long is the growing season in Norfolk?

Norfolk has roughly 262 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 Norfolk's frost dates.

Confidence 86/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.