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When to plant swiss chard in Providence

Swiss chard is cold-hardy, so every date keys off Providence's frost dates of Apr 11.
Step 1 · Sow
Start seeds indoors
Mar 14 – Apr 4
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 7 – Apr 28
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 27 – Jun 6
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 26 – Aug 9
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 21 – Oct 1
Maturity window for the second sowing.
Window
Days to maturity
50 – 60 d
Providence's 200-day season leaves this much room.
Swiss chard on Providence'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 11
OCT 30

Common questions

When can I sow swiss chard outdoors in Providence?

Direct-sow around early April (Apr 7–Apr 28) in Providence, based on its local frost dates. Confidence 86%.

When will swiss chard be ready to harvest in Providence?

Expect to harvest from around late May (May 27–Jun 6) in Providence, based on its local frost dates. Confidence 80%.

When should I start swiss chard seeds indoors in Providence?

Start seeds indoors around mid March (Mar 14–Apr 4) in Providence, based on its local frost dates. Confidence 85%.

When can I transplant swiss chard outdoors in Providence?

Transplant outdoors around early April (Apr 7–Apr 28) in Providence, based on its local frost dates. Confidence 86%.

Can I plant swiss chard in autumn in Providence?

Yes — Providence supports a second, autumn sowing of swiss chard around late July (Jul 26–Aug 9), timed to mature before the first fall frost.

How long is the growing season in Providence?

Providence has roughly 200 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 Providence'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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