Columbia, SC · zone 8a · ~245 frost-free days
When to plant in Columbia: frost dates and zone 8a.
In Columbia, the typical last spring frost lands around Mar 16 and the first fall frost around Nov 16, giving you about 245 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 Columbia, keyed to your frost.
| Crop | Start indoors | Spring sow / set out | Fall sow |
|---|---|---|---|
| Tomato, slicing | Feb 9 to Apr 11 | Mar 23 to May 23 | — |
| Lettuce, leaf | — | Feb 6 to Mar 23 | Sep 2 to Nov 1 |
| Carrot | — | Feb 6 to Mar 11 | Aug 21 to Sep 16 |
| Bush Bean | — | Mar 16 to May 6 | Aug 2 to Sep 4 |
| Cucumber, slicing | — | Mar 23 to Jun 22 | Jul 16 to Aug 16 |
| Pepper, bell | Feb 18 to Apr 11 | Apr 1 to May 23 | — |
| Kale | Dec 26 to Jan 23 | Feb 6 to Mar 6 | Aug 16 to Oct 1 |
| Spinach | — | Jan 23 to Mar 6 | Sep 2 to Oct 21 |
Columbia sits in Zone 8a, 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 Columbia 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 29201 in about 60 seconds.
Columbia planting questions
What planting zone is Columbia, SC?+
Columbia is in USDA hardiness zone 8a. Growing zone, gardening zone, and planting zone all mean the same thing: the USDA number, 8a 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 Columbia?+
The typical last spring frost in Columbia, SC is around Mar 16. 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 Columbia?+
The typical first fall frost in Columbia, SC arrives around Nov 16, closing a growing season of roughly 245 frost-free days. Count backward from it to find the last date a fall crop can still finish.
What can I plant now in Columbia?+
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 Mar 16. The table above shows each crop's window; the free planner turns your ZIP into an exact, dated calendar.