Yes — Strong Match
barrel cactus (zones 5-11) covers every zone South Carolina contains (7a-9b), so hardiness is not what limits it anywhere in the state.
Barrel Cactus in South Carolina — the short answer
Barrel Cactus in South Carolina: hardy in zones 5–11, full sun, against a state median of ~265 frost-free days.
- Plant zones
- 5-11
- Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
- South Carolina zones
- 7a-9b
- USDA PHZM 2023
- Frost window
- Feb 27 - Mar 12 – Nov 23 - Dec 1
- NOAA RCC ACIS 1991-2020, 28°F
- Shortest county season
- 237 days
- NOAA Regional Climate Centers ACIS, 1991-2020, county 28°F killing freeze
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — per-field provenance varies and is published with the dataset.
Your yard isn't the whole zone.
South Carolina spans zones 7a-9b, but your yard sits in exactly one — and slope, tree cover, and cold-air pockets nudge it further. Enter your address and we'll score barrel cactus against your parcel's actual hardiness, soil, and sun.
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South Carolina is not one climate
South Carolina’s winter-low ladder runs across 46 counties, from zone 8 in Abbeville County to zone 9 in Jasper County. That is 10°F between the two counties’ average coldest night — the difference between barrel cactus overwintering in the ground and coming under cover.
The middle half of 46 counties runs 8–8.5 zones, with a median of 8.5 zones — a 1-zone span end to end.
Measured across 46 South Carolina counties. USDA PHZM 2023, per county. Quartiles are order statistics — every figure shown is a value a real county recorded, not an interpolation. Your own site sits somewhere inside this range; a parcel report resolves where.
Where in South Carolina Fits Best
Even within South Carolina's zones 7a-9b, county microclimates differ enough to change what thrives. These counties carry the closest zone match for barrel cactus (USDA PHZM 2023):
Zone Comparison
Barrel Cactus Needs
- USDA Zones: 5-11
- Frost-Free Days: 160+
- Sun: Full Sun
- Mature size: 5 ft tall
- Picking window: ~30 days of harvest
- Drought tolerance: High
South Carolina Has
- USDA Zones: 7a-9b
- Last Hard Freeze (28°F): Feb 27 - Mar 12
- First Hard Freeze (28°F): Nov 23 - Dec 1
- Annual Rainfall: 45-55 inches
- Common Soils: Red clay (Piedmont), Sandy loam (Coastal), Alluvial
Plant Zone Range (zones 5-11)
Preferred Soil pH
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS, and university Extension sources — per-field provenance varies and is published with the dataset. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant Barrel Cactus in South Carolina
The frost window
Across South Carolina, the last spring hard freeze (28°F) clears between Feb 27 and Mar 12, and the first fall hard freeze lands between Nov 23 and Dec 1 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 256-day window you can count on — up to 277 days on a mild site in a kind year. That marks the hard freeze, not the last light frost, so tender transplants usually wait another 2-3 weeks.
Winter standing
South Carolina runs as cold as USDA zone 7, and no sourced winter-hardiness floor is on record for barrel cactus, so this page does not state whether it overwinters here — and gives no fall establishment date on the strength of a guess. Whether barrel cactus is a permanent planting or a replant-every-spring crop for you turns on your own zone within South Carolina; check its hardiness range against that before treating it as long-lived ground.
Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: Growable Ground Plant Database — frost-free days from FAO ECOCROP, days to harvest from university Extension production guides, and growing-degree-day and chill-hour minimums that are compilation estimates rather than published figures. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.
Growing Season Fit
The zone check says barrel cactus survives winter here. Whether the season is long enough — and warm enough — is a different question.
Frost-free days
Barrel Cactus wants 160+ frost-free days; a typical South Carolina site sees ~265 (NOAA Regional Climate Centers ACIS, 1991-2020). That leaves comfortable headroom for succession planting.
GDD and chill-hour figures are computed from PRISM 1991-2020 monthly climate normals; frost-free days from NOAA Regional Climate Centers ACIS, 1991-2020. Each is the state median across its counties (P25/P75 span the within-state spread). Hardiness-zone range is USDA PHZM 2023.
Soil + Drainage Fit
Barrel Cactus likes near-neutral soil (pH 7-8.5). That's the common-ground band across South Carolina's red clay (piedmont) and sandy loam (coastal) — a soil test confirms it for your site. Drainage requirement: excessive (dry/moderately dry). A soil-survey lookup (NRCS SSURGO) flags whether your specific site matches.
Plant pH requirements: FAO ECOCROP and USDA PLANTS, with the remaining rows from other published sources or Growable Ground compilation. Drainage: FAO ECOCROP, with the remaining rows from other published sources or Growable Ground compilation. South Carolina soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
What Else to Consider for Barrel Cactus in South Carolina
Zone compatibility tells you about winter cold survival — but South Carolina growers also need to think about:
Red Piedmont clay requires amendment for drainage
High heat and humidity promote diseases
Hurricane risk along the coast
What to actually do about these — and the constraints that apply to every South Carolina grower, not just barrel cactus — is covered on the South Carolina growing guide.
Timing shifts within South Carolina
Barrel Cactus needs about 160 days of frost-free season to complete its cycle. Even Chester County — South Carolina’s shortest season at 237 frost-free days — clears that by 77 days, so season length isn’t the constraint anywhere in South Carolina. What varies is your own parcel.
Across South Carolina’s 46 counties the frost-free season runs from 237 days in Chester County to 320 days in Charleston County — a spread of 83 days, which is why a single statewide planting date misleads. The median South Carolina county sees 265 frost-free days, leaving barrel cactus about 105 days of slack on a typical parcel — room for a second sowing where the season runs long.
County last-freeze dates and frost-free day counts: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F freeze (earlier than the folk 32°F "last frost"). Barrel Cactus's 160-day requirement: USDA PLANTS / Growable Ground plant database (minimum frost-free days). A parcel report resolves your address's own frost dates.
Pollinator + Wildlife Value
Barrel Cactus draws honeybees and native bees (moderate value, Growable Ground Plant Database). Planting it near vegetable beds can lift fruit set on neighboring crops. Outdoors, barrel cactus can only work that bloom inside South Carolina's frost window — roughly 265 days, opening after the last 28°F freeze (Feb 27 - Mar 12) and closing at the first (Nov 23 - Dec 1), per NOAA Regional Climate Centers ACIS, 1991-2020.
South Carolina Cooperative Extension
For South Carolina-specific cultivar recommendations, planting calendars, and pest pressure for barrel cactus, the canonical source is Clemson Cooperative Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.
Is Barrel Cactus native to South Carolina?
Barrel Cactus is native to parts of the Lower 48, but the USDA PLANTS Database (accessed 2026-07-01) does not document a native range in South Carolina. It can still earn a place in a South Carolina garden — the zone comparison above tells you whether it will thrive.
Looking for plants that belong here? The South Carolina growing guide lists USDA-documented natives for the state.
Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.
Common Questions About Growing Barrel Cactus in South Carolina
When can I plant Barrel Cactus in South Carolina?
South Carolina's last spring hard freeze (28°F) clears between Feb 27 and Mar 12, and the first fall hard freeze lands between Nov 23 and Dec 1 (NOAA Regional Climate Centers ACIS, 1991-2020). No sourced winter-hardiness floor is on record for Barrel Cactus, so this page does not state whether it overwinters in South Carolina and publishes no fall establishment date for it — check its hardiness range against your own zone before treating it as a permanent planting.
What hardiness zone is Barrel Cactus grown in across South Carolina?
South Carolina spans USDA hardiness zones 7a-9b (USDA ARS PHZM 2023). Barrel Cactus carries a range of zones 5-11, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical South Carolina site have?
A typical South Carolina site sees ~265 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). Barrel Cactus needs 160+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date.
Is Barrel Cactus native to South Carolina?
Barrel Cactus is native to parts of the Lower 48, but the USDA PLANTS Database (accessed 2026-07-01) does not document a native range in South Carolina. It can still earn a place in a South Carolina garden — the zone comparison above tells you whether it will thrive.
How should I amend the soil for Barrel Cactus in South Carolina?
Barrel Cactus prefers pH 7-8.5 and excessive (dry/moderately dry) drainage (USDA PLANTS). That sits in the common-ground band across South Carolina soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.
Will Barrel Cactus actually grow on my specific land in South Carolina?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores barrel cactus against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.
Check your specific parcel in South Carolina
State-level data is a sketch. Your Growable Ground report scores barrel cactus against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
Three things about your lot that South Carolina barrel cactus averages can't show:
We read public map data around South Carolina — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the South Carolina barrel cactus average
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Growing guides for barrel cactus
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