When to plant basil in Saint Paul
Basil is frost-tender, so every date keys off Saint Paul's last spring frost of Apr 22.
Step 1 · Sow
Start seeds indoors
Mar 30 – Apr 20
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 2 – Jun 23
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 1 – Aug 31
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 90 d
Saint Paul's 174-day season leaves this much room.
Basil on Saint Paul'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 22
OCT 12
Common questions
When can I sow basil outdoors in Saint Paul?
Direct-sow around early June (Jun 2–Jun 23) in Saint Paul, based on its local frost dates. Confidence 81%.
When will basil be ready to harvest in Saint Paul?
Expect to harvest from around early August (Aug 1–Aug 31) in Saint Paul, based on its local frost dates. Confidence 76%.
When should I start basil seeds indoors in Saint Paul?
Start seeds indoors around late March (Mar 30–Apr 20) in Saint Paul, based on its local frost dates. Confidence 80%.
When can I transplant basil outdoors in Saint Paul?
Transplant outdoors around early June (Jun 2–Jun 23) in Saint Paul, based on its local frost dates. Confidence 81%.
How long is the growing season in Saint Paul?
Saint Paul has roughly 174 frost-free days, which is enough time to grow basil to maturity outdoors.
The rule of thumb
Sow basil 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 Saint Paul's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.