When to plant swiss chard in Toulouse
Swiss chard is cold-hardy, so every date keys off Toulouse's frost dates of Apr 5.
Step 1 · Sow
Start seeds indoors
Mar 8 – Mar 29
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 22 – Apr 12
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 11 – May 21
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Toulouse's 217-day season leaves this much room.
Swiss chard on Toulouse'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
FROST
FROST
APR 5
NOV 8
Common questions
When can I sow swiss chard outdoors in Toulouse?
Direct-sow around late March (Mar 22–Apr 12) in Toulouse, based on its local frost dates. Confidence 72%.
When will swiss chard be ready to harvest in Toulouse?
Expect to harvest from around mid May (May 11–May 21) in Toulouse, based on its local frost dates. Confidence 65%.
When should I start swiss chard seeds indoors in Toulouse?
Start seeds indoors around early March (Mar 8–Mar 29) in Toulouse, based on its local frost dates. Confidence 68%.
When can I transplant swiss chard outdoors in Toulouse?
Transplant outdoors around late March (Mar 22–Apr 12) in Toulouse, based on its local frost dates. Confidence 72%.
How long is the growing season in Toulouse?
Toulouse has roughly 217 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 Toulouse's frost dates.
Confidence 72/100 · NASA POWER (modeled) · 1991–2020 · frost dates are probabilities, not guarantees.