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When to plant swiss chard in Birmingham

Swiss chard is cold-hardy, so every date keys off Birmingham's frost dates of Mar 27.
Step 1 · Sow
Start seeds indoors
Feb 27 – Mar 20
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 13 – Apr 3
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 2 – May 12
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Aug 12 – Aug 26
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Oct 8 – Oct 18
Maturity window for the second sowing.
Window
Days to maturity
50 – 60 d
Birmingham's 229-day season leaves this much room.
Swiss chard on Birmingham'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 27
NOV 11

Common questions

When can I sow swiss chard outdoors in Birmingham?

Direct-sow around mid March (Mar 13–Apr 3) in Birmingham, based on its local frost dates. Confidence 89%.

When will swiss chard be ready to harvest in Birmingham?

Expect to harvest from around early May (May 2–May 12) in Birmingham, based on its local frost dates. Confidence 80%.

When should I start swiss chard seeds indoors in Birmingham?

Start seeds indoors around late February (Feb 27–Mar 20) in Birmingham, based on its local frost dates. Confidence 85%.

When can I transplant swiss chard outdoors in Birmingham?

Transplant outdoors around mid March (Mar 13–Apr 3) in Birmingham, based on its local frost dates. Confidence 89%.

Can I plant swiss chard in autumn in Birmingham?

Yes — Birmingham supports a second, autumn sowing of swiss chard around mid August (Aug 12–Aug 26), timed to mature before the first fall frost.

How long is the growing season in Birmingham?

Birmingham has roughly 229 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 Birmingham's frost dates.

Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.
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