When to plant summer squash / zucchini in Las Vegas
Summer squash / Zucchini is frost-tender, so every date keys off Las Vegas's last spring frost of Feb 4.
Step 1 · Sow
Start seeds indoors
Feb 12 – Mar 5
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 22 – Apr 12
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 6 – May 21
Picking runs until conditions turn against the crop.
Window
Days to maturity
45 – 60 d
Las Vegas's 305-day season leaves this much room.
Summer squash / Zucchini on Las Vegas'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
FEB 4
DEC 5
Common questions
When can I sow summer squash / zucchini outdoors in Las Vegas?
Direct-sow around late March (Mar 22–Apr 12) in Las Vegas, based on its local frost dates. Confidence 83%.
When will summer squash / zucchini be ready to harvest in Las Vegas?
Expect to harvest from around early May (May 6–May 21) in Las Vegas, based on its local frost dates. Confidence 77%.
When should I start summer squash / zucchini seeds indoors in Las Vegas?
Start seeds indoors around mid February (Feb 12–Mar 5) in Las Vegas, based on its local frost dates. Confidence 82%.
When can I transplant summer squash / zucchini outdoors in Las Vegas?
Transplant outdoors around late March (Mar 22–Apr 12) in Las Vegas, based on its local frost dates. Confidence 83%.
How long is the growing season in Las Vegas?
Las Vegas has roughly 305 frost-free days, which is enough time to grow summer squash / zucchini to maturity outdoors.
The rule of thumb
Sow summer squash / zucchini 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 Las Vegas's frost dates.
Confidence 86/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.