When to plant radish in Glendale
Radish is cold-hardy, so every date keys off Glendale's frost dates of Jan 27.
Step 1 · Sow
Direct sow outdoors
Dec 30 – Jan 20
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jan 24 – Jan 29
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Oct 25 – Nov 8
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Nov 26 – Dec 1
Maturity window for the second sowing.
Window
Days to maturity
25 – 30 d
Glendale's 322-day season leaves this much room.
Radish 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 radish outdoors in Glendale?
Direct-sow around late December (Dec 30–Jan 20) in Glendale, based on its local frost dates. Confidence 87%.
When will radish be ready to harvest in Glendale?
Expect to harvest from around late January (Jan 24–Jan 29) in Glendale, based on its local frost dates. Confidence 78%.
Can I plant radish in autumn in Glendale?
Yes — Glendale supports a second, autumn sowing of radish around late October (Oct 25–Nov 8), 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 radish to maturity outdoors.
The rule of thumb
Sow radish 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.