Oak Island, North Carolina, sits in USDA hardiness zone 8b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include cabbage, fig, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Oak Island, no two yards are alike.
A low spot, a south-facing slope, or a stand of trees moves the frost date and sun across a single Oak Island lot. Enter your address and we'll score 1,086 plants against your land's actual soil, sun, and frost.
We read public map data around Oak Island — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Oak Island — the short answer
Oak Island, North Carolina: USDA zone 8b, about 265 days between hard freezes, across 12K acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 8
- Brunswick County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 28
- Brunswick County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~265
- Brunswick County normal — NOAA 1991–2020, nearest to this town
- Town area
- 12K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Brunswick County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Oak Island's average, not your lot's — a low corner or a tree line moves it. Against Oak Island's 265-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Oak Island
Each reading below is measured for Oak Island itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsOak Island runs about 265 days between hard freezes (read from Brunswick County, the closest normal to Oak Island) — close to year-round growing.
Frost is rarely the limit here; winter plantings are as real as summer ones, and the harder question is which crops shrug off the summer heat.
Grow cool-season crops through the mild winter, and choose heat-tolerant varieties for the summer beds.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredOak Island sits in USDA hardiness zone 8b.
The zone sets which perennials, shrubs, and fruit trees live through an average winter here — a plant rated for a colder zone is a safe bet, one rated warmer needs winter protection or gets treated as an annual.
Match perennials and fruit to the zone before you buy, so nothing you plant is a gamble against the cold.
USDA PHZM 2023
The kind of country Oak Island is in
Oak Island sits in the Middle Atlantic Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Oak Island's own centroid rather than borrowed from Brunswick County.
What Grows in Oak Island
Every plant below cleared Oak Island's own zone 8b and its 265-day season. Each card opens that plant's North Carolina profile. How we score.
Is it too late to plant in Oak Island?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Feb 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 28 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.
Documented around Oak Island
Spotted lanternfly documented 26 miles from Oak Island, first recorded 2023. What to watch for.
What's on the federal record near Oak Island
Closest first, within ~10 miles of Oak Island. Listing isn't leaking, and distance isn't exposure.
- TOWN OF OAK ISLAND FUEL PUMPSUnderground Storage Tanks · 650 ft
- SPORTSMAN INN MARINAUnderground Storage Tanks · 1300 ft
- BEACH PANTRYUnderground Storage Tanks · 1300 ft
- BR-016Nitrate · 1500 ft
- SOUTHERN BELL-GLC 21826Underground Storage Tanks · 2000 ft
- JIFFY BAIT & TACKLEUnderground Storage Tanks · 2200 ft
- OLDE BRUNSWICK STORE NO 2Underground Storage Tanks · 0.5 mi
- ISLAND EXPRESS MARTUnderground Storage Tanks · 0.6 mi
- WAGONERS CONVENIENCE STORES INCUnderground Storage Tanks · 0.8 mi
- GENERAL PARTSUnderground Storage Tanks · 0.8 mi
- ST. JAMES PLANTATIONUnderground Storage Tanks · 1.0 mi
- J & W PROPERTIESUnderground Storage Tanks · 1.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Oak Island's center, not your beds. Run your own address for what's upwind of you specifically.
Environmental Intelligence
The counts behind that headline — every source type on the record near Oak Island.
Total Sites
173
within ~10 miles of Oak Island
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Oak Island
Severity Distribution
within ~10 miles of Oak Island
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Oak Island, Nitrate runs higher than the national average — 68 sites within ~10 miles of Oak Island. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Oak Island
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,086 plant recommendations.
25+ data sources read at your address, not the Oak Island average
Your land is one point inside Oak Island
Everything above resolves to Oak Island as a whole — one PHZM band, read across 12K acres, with hard-freeze dates borrowed from Brunswick County’s record because no 30-year normal resolves at this town’s own centroid. Your parcel is one point inside that footprint. Slope, tree cover, a low spot that pools cold air, and what is in the soil are all resolved at the address, and none of them are visible at town scale. That is the honest boundary of this page, and the reason the next step is a reading of your own ground rather than a better local average.
Your Lot vs the Oak Island Average
Oak Island Average
- ●USDA Zones 8b, averaged across Oak Island
- ●One soil character for all of Oak Island
- ●Frost dates read at Oak Island's scale: Mar 8 to Nov 28
YOUR Parcel
- ✓Your exact zone, not Oak Island's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Oak Island
Pull a site-specific report for your exact address in Oak Island, North Carolina — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Oak Island averages can't show:
We read public map data around Oak Island — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Oak Island average
How we know this about Oak Island
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Brunswick County’s record, because none resolves here; boundaries and acreage from US Census TIGER/Line 2025; the contamination records from the federal sources named in their beats above. Soil is not read at town grain anywhere on this page — there is no town-resolution survey in our data, which is why you will find no soil grid here rather than a statewide one wearing a local label. The resolution ledger below names every figure this page inherited.
Common questions about Oak Island
When does frost risk typically end in Oak Island?
The last hard freeze (28°F) in Oak Island typically lands around Mar 8, per NOAA 1991–2020 climate normals — earlier than the light-frost dates most charts quote. That marks the hard freeze, not the last light frost — lighter frosts keep biting past it, which is why tender transplants here wait until about Mar 29.
When is the first frost in Oak Island?
The first hard freeze (28°F) in Oak Island typically arrives around Nov 28, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 14, so the watching starts about Oct 29 — about 265 days after the spring freeze cleared.
How long is the growing season in Oak Island?
Measured between 28°F hard freezes, Oak Island sees about 265 frost-free days — roughly Mar 8 through Nov 28, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 29 to Nov 14, about 230 days.
Is the soil safe to grow vegetables in Oak Island?
The federal record around Oak Island is a meaningful one — 173 documented sites, mostly Underground Storage Tanks entries (85), the nearest Underground Storage Tanks record about 0.1 miles out — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.
How do I protect my plants from frost in Oak Island?
From about Oct 29 the job here turns from planting to protecting — the last start even a 30-day crop can finish. As the season closes around the first 28°F hard freeze near Nov 28 (NOAA 1991–2020 climate normals), three moves buy time: row cover or an old sheet over tender plants on still, clear nights; water the soil the afternoon before a freeze, so it holds warmth overnight; and harvest tomatoes, peppers and basil before Nov 28. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Oak Island's scale — its 8b band and its 265-day season. Your yard writes its own version of Oak Island's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
What this page reads at Oak Island’s own scale
6 of the readings below were taken at Oak Island's own scale — the 12,334 acres it covers and 173 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Oak Island's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 173 documented contamination sites on the federal record near Oak Island, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Oak Island's boundary and the 12,334 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~265-day seasonGrowable Ground crop-matching engine
- The ecoregion at Oak Island's own centroid, the Middle Atlantic Coastal PlainUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Oak Islandlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- The 28°F hard-freeze dates — Oak Island has no normal of its own, so its county's is the closest measured readfrom Brunswick County
- Soil character — no town-scale survey exists, so Oak Island's 12,334 acres read through its county's SSURGO summaryfrom Brunswick County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Brunswick County
- The growing challenges every North Carolina grower plans around — written at state scale, so they stay on the state guidefrom North Carolina
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Brunswick County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Oak Island's 12,334 acreswhy one lot differs from the next →
- Which side of Oak Island you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 12,334 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.1 miles out, measured from the town centrehow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — measured at your address, and averaged away by any Oak Island-wide figureread your own land →