When to plant basil in Glendale
Basil is frost-tender, so every date keys off Glendale's last spring frost of Jan 27.
Step 1 · Sow
Start seeds indoors
Jan 10 – Jan 31
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 14 – Apr 4
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 13 – Jun 12
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 90 d
Glendale's 322-day season leaves this much room.
Basil on Glendale'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
JAN 27
DEC 15
Common questions
When can I sow basil outdoors in Glendale?
Direct-sow around mid March (Mar 14–Apr 4) in Glendale, based on its local frost dates. Confidence 84%.
When will basil be ready to harvest in Glendale?
Expect to harvest from around mid May (May 13–Jun 12) in Glendale, based on its local frost dates. Confidence 78%.
When should I start basil seeds indoors in Glendale?
Start seeds indoors around early January (Jan 10–Jan 31) in Glendale, based on its local frost dates. Confidence 83%.
When can I transplant basil outdoors in Glendale?
Transplant outdoors around mid March (Mar 14–Apr 4) in Glendale, based on its local frost dates. Confidence 84%.
How long is the growing season in Glendale?
Glendale has roughly 322 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 Glendale's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.