When to plant in Summerville, SC
USDA Zone 8bSummerville, South Carolina frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 8b means many perennials and even some tender shrubs overwinter in Summerville, while your frost dates still decide when annuals go out.
Frost probability
SUMMERVILLE 4W · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Summerville’s own odds, recorded at SUMMERVILLE 4W.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 19 | Apr 3 | Mar 16 | Oct 19 | Nov 3 | Nov 18 |
| 32°F | Apr 7 | Mar 22 | Mar 1 | Oct 29 | Nov 12 | Dec 3 |
| 28°F | Mar 28 | Mar 7 | Feb 10 | Nov 7 | Nov 29 | Dec 28 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Summerville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 32 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Summerville planting FAQ
When is the last spring frost in Summerville, SC?
On average, the last spring frost in Summerville is around March 22 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Summerville, SC?
The first fall frost in Summerville typically arrives around November 12 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Summerville in?
Summerville is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Summerville?
There are roughly 235 frost-free days in Summerville (a long growing season), running from the average last frost around March 22 to the first fall frost near November 12.
When should I plant tomatoes in Summerville?
In Summerville, start tomato seeds indoors around January 25–February 8, then transplant seedlings outdoors around March 29 once the danger of frost has passed.
Never miss a window in Summerville
An email when it’s time to start seeds, transplant, and sow — timed to Summerville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Ladson · 7 km
- North Charleston · 14 km
- Goose Creek · 16 km
- Hanahan · 19 km
- Charleston · 28 km
- Moncks Corner · 28 km
- Mount Pleasant · 37 km
- James Island · 38 km
Frost dates recorded at SUMMERVILLE 4W, 6 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Summerville, SC — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00388426. Retrieved from https://blissgarden.com/south-carolina/summerville.