When to plant summer squash / zucchini in Memphis
Summer squash / Zucchini is frost-tender, so every date keys off Memphis's last spring frost of Mar 14.
Step 1 · Sow
Start seeds indoors
Mar 21 – Apr 11
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 13 – May 4
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 28 – Jun 12
Picking runs until conditions turn against the crop.
Window
Days to maturity
45 – 60 d
Memphis's 239-day season leaves this much room.
Summer squash / Zucchini on Memphis'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
MAR 14
NOV 16
Common questions
When can I sow summer squash / zucchini outdoors in Memphis?
Direct-sow around mid April (Apr 13–May 4) in Memphis, based on its local frost dates. Confidence 86%.
When will summer squash / zucchini be ready to harvest in Memphis?
Expect to harvest from around late May (May 28–Jun 12) in Memphis, based on its local frost dates. Confidence 80%.
When should I start summer squash / zucchini seeds indoors in Memphis?
Start seeds indoors around late March (Mar 21–Apr 11) in Memphis, based on its local frost dates. Confidence 85%.
When can I transplant summer squash / zucchini outdoors in Memphis?
Transplant outdoors around mid April (Apr 13–May 4) in Memphis, based on its local frost dates. Confidence 86%.
How long is the growing season in Memphis?
Memphis has roughly 239 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 Memphis's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.