When to plant pepper (sweet & chili) in London
Pepper (sweet & chili) is frost-tender, so every date keys off London's last spring frost of Apr 6.
Step 1 · Sow
Start seeds indoors
Feb 23 – Mar 16
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jul 27 – Aug 17
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Sep 30 – Oct 25
Picking runs until conditions turn against the crop.
Window
Days to maturity
65 – 90 d
London's 234-day season leaves this much room.
Pepper (sweet & chili) on London'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 6
NOV 16
Common questions
When will pepper (sweet & chili) be ready to harvest in London?
Expect to harvest from around late September (Sep 30–Oct 25) in London, based on its local frost dates. Confidence 74%.
When should I start pepper (sweet & chili) seeds indoors in London?
Start seeds indoors around late February (Feb 23–Mar 16) in London, based on its local frost dates. Confidence 78%.
When can I transplant pepper (sweet & chili) outdoors in London?
Transplant outdoors around late July (Jul 27–Aug 17) in London, based on its local frost dates. Confidence 80%.
How long is the growing season in London?
London has roughly 234 frost-free days, which is enough time to grow pepper (sweet & chili) to maturity outdoors.
The rule of thumb
Sow pepper (sweet & chili) 6–8 weeks before your last spring frost; plant out 2–3 weeks after it. Every date on this page is derived from that rule and London's frost dates.
Confidence 82/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.