When to plant melon (cantaloupe/watermelon) in Columbus
Melon (cantaloupe/watermelon) is frost-tender, so every date keys off Columbus's last spring frost of Mar 6.
Step 1 · Sow
Start seeds indoors
Mar 5 – Mar 26
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
May 12 – Jun 2
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jul 26 – Aug 20
Picking runs until conditions turn against the crop.
Window
Days to maturity
75 – 100 d
Columbus's 262-day season leaves this much room.
Melon (cantaloupe/watermelon) on Columbus'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 6
NOV 22
Common questions
When can I sow melon (cantaloupe/watermelon) outdoors in Columbus?
Direct-sow around mid May (May 12–Jun 2) in Columbus, based on its local frost dates. Confidence 85%.
When will melon (cantaloupe/watermelon) be ready to harvest in Columbus?
Expect to harvest from around late July (Jul 26–Aug 20) in Columbus, based on its local frost dates. Confidence 79%.
When should I start melon (cantaloupe/watermelon) seeds indoors in Columbus?
Start seeds indoors around early March (Mar 5–Mar 26) in Columbus, based on its local frost dates. Confidence 84%.
When can I transplant melon (cantaloupe/watermelon) outdoors in Columbus?
Transplant outdoors around mid May (May 12–Jun 2) in Columbus, based on its local frost dates. Confidence 85%.
How long is the growing season in Columbus?
Columbus has roughly 262 frost-free days, which is enough time to grow melon (cantaloupe/watermelon) to maturity outdoors.
The rule of thumb
Sow melon (cantaloupe/watermelon) 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 Columbus's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.