When to plant swiss chard in Toledo

Swiss chard is cold-hardy, so every date keys off Toledo's frost dates of Apr 23.
Step 1 · Sow
Start seeds indoors
Mar 26 – Apr 16
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 9 – Apr 30
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 29 – Jun 8
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 18 – Aug 1
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 13 – Sep 23
Maturity window for the second sowing.
Window
Days to maturity
50 – 60 d
Toledo's 178-day season leaves this much room.
Swiss chard on Toledo'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 23
OCT 23

Common questions

When can I sow swiss chard outdoors in Toledo?

Direct-sow around early April (Apr 9–Apr 30) in Toledo, based on its local frost dates. Confidence 84%.

When will swiss chard be ready to harvest in Toledo?

Expect to harvest from around late May (May 29–Jun 8) in Toledo, based on its local frost dates. Confidence 76%.

When should I start swiss chard seeds indoors in Toledo?

Start seeds indoors around late March (Mar 26–Apr 16) in Toledo, based on its local frost dates. Confidence 80%.

When can I transplant swiss chard outdoors in Toledo?

Transplant outdoors around early April (Apr 9–Apr 30) in Toledo, based on its local frost dates. Confidence 84%.

Can I plant swiss chard in autumn in Toledo?

Yes — Toledo supports a second, autumn sowing of swiss chard around mid July (Jul 18–Aug 1), timed to mature before the first fall frost.

How long is the growing season in Toledo?

Toledo has roughly 178 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 Toledo's frost dates.

Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.