When to plant swiss chard in Kyoto
Swiss chard is cold-hardy, so every date keys off Kyoto's frost dates of Apr 1.
Step 1 · Sow
Start seeds indoors
Mar 4 – Mar 25
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 18 – Apr 8
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 7 – May 17
Picking runs until conditions turn against the crop.
Window
Days to maturity
50 – 60 d
Kyoto's 241-day season leaves this much room.
Swiss chard on Kyoto'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 1
NOV 28
Common questions
When can I sow swiss chard outdoors in Kyoto?
Direct-sow around mid March (Mar 18–Apr 8) in Kyoto, based on its local frost dates. Confidence 82%.
When will swiss chard be ready to harvest in Kyoto?
Expect to harvest from around early May (May 7–May 17) in Kyoto, based on its local frost dates. Confidence 74%.
When should I start swiss chard seeds indoors in Kyoto?
Start seeds indoors around early March (Mar 4–Mar 25) in Kyoto, based on its local frost dates. Confidence 78%.
When can I transplant swiss chard outdoors in Kyoto?
Transplant outdoors around mid March (Mar 18–Apr 8) in Kyoto, based on its local frost dates. Confidence 82%.
How long is the growing season in Kyoto?
Kyoto has roughly 241 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 Kyoto's frost dates.
Confidence 82/100 · NOAA GHCN-Daily · 1991–2020 normals · frost dates are probabilities, not guarantees.