When to plant swiss chard in Fargo

Swiss chard is cold-hardy, so every date keys off Fargo's frost dates of May 11.
Step 1 · Sow
Start seeds indoors
Apr 13 – May 4
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 28 – May 19
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 17 – Jun 27
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 1 – Jul 15
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Aug 27 – Sep 6
Maturity window for the second sowing.
Window
Days to maturity
50 – 60 d
Fargo's 144-day season leaves this much room.
Swiss chard on Fargo'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
MAY 11
OCT 2

Common questions

When can I sow swiss chard outdoors in Fargo?

Direct-sow around late April (Apr 28–May 19) in Fargo, based on its local frost dates. Confidence 86%.

When will swiss chard be ready to harvest in Fargo?

Expect to harvest from around mid June (Jun 17–Jun 27) in Fargo, based on its local frost dates. Confidence 80%.

When should I start swiss chard seeds indoors in Fargo?

Start seeds indoors around mid April (Apr 13–May 4) in Fargo, based on its local frost dates. Confidence 85%.

When can I transplant swiss chard outdoors in Fargo?

Transplant outdoors around late April (Apr 28–May 19) in Fargo, based on its local frost dates. Confidence 86%.

Can I plant swiss chard in autumn in Fargo?

Yes — Fargo supports a second, autumn sowing of swiss chard around early July (Jul 1–Jul 15), timed to mature before the first fall frost.

How long is the growing season in Fargo?

Fargo has roughly 144 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 Fargo's frost dates.

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