Oklahoma City, OK · zone 7b · ~214 frost-free days
When to plant in Oklahoma City: frost dates and zone 7b.
In Oklahoma City, the typical last spring frost lands around Apr 3 and the first fall frost around Nov 3, giving you about 214 frost-free days. Cool-season crops go out before the last frost; warm-season crops wait until after it.
The 2026 windows
Sow dates for Oklahoma City, keyed to your frost.
| Crop | Start indoors | Spring sow / set out | Fall sow |
|---|---|---|---|
| Tomato, slicing | Feb 27 to Apr 29 | Apr 10 to Jun 10 | — |
| Lettuce, leaf | — | Feb 24 to Apr 10 | Aug 20 to Oct 19 |
| Carrot | — | Feb 24 to Mar 29 | Aug 8 to Sep 3 |
| Bush Bean | — | Apr 3 to May 24 | Jul 20 to Aug 22 |
| Cucumber, slicing | — | Apr 10 to Jul 10 | — |
| Pepper, bell | Mar 8 to Apr 29 | Apr 19 to Jun 10 | — |
| Kale | Jan 13 to Feb 10 | Feb 24 to Mar 24 | Aug 3 to Sep 18 |
| Spinach | — | Feb 10 to Mar 24 | Aug 20 to Oct 8 |
Oklahoma City sits in Zone 7b, but two gardens in the same city can be a week or two apart. The planner works from your ZIP code's frost dates, not the zone, so the dates land right for your block, not the metro average.
Build your Oklahoma City garden plan.
Tell the free planner what you want to eat and who you're feeding. It returns plant counts, spacing, and frost-safe sow dates for ZIP 73102 in about 60 seconds.
Oklahoma City planting questions
What planting zone is Oklahoma City, OK?+
Oklahoma City is in USDA hardiness zone 7b. Growing zone, gardening zone, and planting zone all mean the same thing: the USDA number, 7b here. It tells you what survives winter, not when to plant. Frost dates set your planting time, and the free planner uses your exact ZIP code's frost dates, which can differ by weeks across one metro.
When is the last frost date in Oklahoma City?+
The typical last spring frost in Oklahoma City, OK is around Apr 3. That is an average from local history, not a guarantee, so tender crops like tomatoes and peppers are safer with a week of buffer after it.
When is the first frost date in Oklahoma City?+
The typical first fall frost in Oklahoma City, OK arrives around Nov 3, closing a growing season of roughly 214 frost-free days. Count backward from it to find the last date a fall crop can still finish.
What can I plant now in Oklahoma City?+
It depends on the date. Cool-season crops like lettuce, kale, and spinach go out weeks before the last frost; warm-season crops like tomatoes and peppers wait until after Apr 3. The table above shows each crop's window; the free planner turns your ZIP into an exact, dated calendar.