When to plant spinach in Glendale
Spinach is cold-hardy, so every date keys off Glendale's frost dates of Jan 27.
Step 1 · Sow
Direct sow outdoors
Dec 28 – Jan 18
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Feb 6 – Feb 16
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Oct 5 – Oct 19
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Nov 21 – Dec 1
Maturity window for the second sowing.
Window
Days to maturity
40 – 50 d
Glendale's 322-day season leaves this much room.
Spinach 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 spinach outdoors in Glendale?
Direct-sow around late December (Dec 28–Jan 18) in Glendale, based on its local frost dates. Confidence 84%.
When will spinach be ready to harvest in Glendale?
Expect to harvest from around early February (Feb 6–Feb 16) in Glendale, based on its local frost dates. Confidence 78%.
Can I plant spinach in autumn in Glendale?
Yes — Glendale supports a second, autumn sowing of spinach around early October (Oct 5–Oct 19), timed to mature before the first fall frost.
How long is the growing season in Glendale?
Glendale has roughly 322 frost-free days, which is enough time to grow spinach to maturity outdoors.
The rule of thumb
Sow spinach 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 Glendale's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.