When to plant swiss chard in Cheyenne

Swiss chard is cold-hardy, so every date keys off Cheyenne's frost dates of May 13.
Step 1 · Sow
Start seeds indoors
Apr 15 – May 6
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 3 – May 24
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 22 – Jul 2
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jun 24 – Jul 8
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Aug 20 – Aug 30
Maturity window for the second sowing.
Window
Days to maturity
50 – 60 d
Cheyenne's 136-day season leaves this much room.
Swiss chard on Cheyenne'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 13
OCT 2

Common questions

When can I sow swiss chard outdoors in Cheyenne?

Direct-sow around early May (May 3–May 24) in Cheyenne, based on its local frost dates. Confidence 86%.

When will swiss chard be ready to harvest in Cheyenne?

Expect to harvest from around late June (Jun 22–Jul 2) in Cheyenne, based on its local frost dates. Confidence 80%.

When should I start swiss chard seeds indoors in Cheyenne?

Start seeds indoors around mid April (Apr 15–May 6) in Cheyenne, based on its local frost dates. Confidence 85%.

When can I transplant swiss chard outdoors in Cheyenne?

Transplant outdoors around early May (May 3–May 24) in Cheyenne, based on its local frost dates. Confidence 86%.

Can I plant swiss chard in autumn in Cheyenne?

Yes — Cheyenne supports a second, autumn sowing of swiss chard around late June (Jun 24–Jul 8), timed to mature before the first fall frost.

How long is the growing season in Cheyenne?

Cheyenne has roughly 136 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 Cheyenne's frost dates.

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