When to plant cabbage in Tulsa
Cabbage is cold-hardy, so every date keys off Tulsa's frost dates of Mar 31.
Step 1 · Sow
Start seeds indoors
Feb 17 – Mar 10
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Dec 25 – Jan 15
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Mar 5 – Apr 4
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 5 – Jul 19
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 20 – Oct 20
Maturity window for the second sowing.
Window
Days to maturity
70 – 100 d
Tulsa's 214-day season leaves this much room.
Cabbage on Tulsa'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 31
NOV 3
Common questions
When will cabbage be ready to harvest in Tulsa?
Expect to harvest from around early March (Mar 5–Apr 4) in Tulsa, based on its local frost dates. Confidence 79%.
When should I start cabbage seeds indoors in Tulsa?
Start seeds indoors around mid February (Feb 17–Mar 10) in Tulsa, based on its local frost dates. Confidence 84%.
When can I transplant cabbage outdoors in Tulsa?
Transplant outdoors around late December (Dec 25–Jan 15) in Tulsa, based on its local frost dates. Confidence 85%.
Can I plant cabbage in autumn in Tulsa?
Yes — Tulsa supports a second, autumn sowing of cabbage around early July (Jul 5–Jul 19), timed to mature before the first fall frost.
How long is the growing season in Tulsa?
Tulsa has roughly 214 frost-free days, which is enough time to grow cabbage to maturity outdoors.
The rule of thumb
Sow cabbage 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 Tulsa's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.