When to plant in Red Hill, SC
USDA Zone 8bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Red Hill, South Carolina — all computed from Red Hill's nearest NOAA weather station.
A generous ~252-day season lets Red Hill gardeners direct-sow more and still ripen long-maturity crops like melons and winter squash. Zone 8b means many perennials and even some tender shrubs overwinter in Red Hill, while your frost dates still decide when annuals go out.
Frost probability
CONWAY · 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 Red Hill’s own odds, recorded at CONWAY.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 13 | Mar 28 | Mar 9 | Oct 26 | Nov 9 | Nov 28 |
| 32°F | Apr 1 | Mar 15 | Feb 21 | Nov 5 | Nov 22 | Dec 18 |
| 28°F | Mar 22 | Feb 28 | Jan 30 | Nov 17 | Dec 7 | Jan 7 |
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 Red Hill, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 27 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.
Red Hill planting FAQ
When is the last spring frost in Red Hill, SC?
On average, the last spring frost in Red Hill is around March 15 (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 Red Hill, SC?
The first fall frost in Red Hill typically arrives around November 22 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Red Hill in?
Red Hill is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Red Hill?
There are roughly 252 frost-free days in Red Hill (a long growing season), running from the average last frost around March 15 to the first fall frost near November 22.
When should I plant tomatoes in Red Hill?
In Red Hill, start tomato seeds indoors around January 18–February 1, then transplant seedlings outdoors around March 22 once the danger of frost has passed.
Never miss a window in Red Hill
An email when it’s time to start seeds, transplant, and sow — timed to Red Hill’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Conway · 7 km
- Carolina Forest · 9 km
- Socastee · 10 km
- Myrtle Beach · 14 km
- Garden City · 21 km
- Murrells Inlet · 25 km
- North Myrtle Beach · 29 km
- Little River · 36 km
Frost dates recorded at CONWAY, 7 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 Red Hill, SC — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00381997. Retrieved from https://blissgarden.com/south-carolina/red-hill.