When to plant leek in Toulouse
Leek is cold-hardy, so every date keys off Toulouse's frost dates of Apr 5.
Step 1 · Sow
Start seeds indoors
Jan 25 – Feb 15
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
Jun 30 – Jul 20
Picking runs until conditions turn against the crop.
Window
Days to maturity
100 – 120 d
Toulouse's 217-day season leaves this much room.
Leek 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 will leek be ready to harvest in Toulouse?
Expect to harvest from around late June (Jun 30–Jul 20) in Toulouse, based on its local frost dates. Confidence 65%.
When should I start leek seeds indoors in Toulouse?
Start seeds indoors around late January (Jan 25–Feb 15) in Toulouse, based on its local frost dates. Confidence 68%.
When can I transplant leek 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 leek to maturity outdoors.
The rule of thumb
Sow leek 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.