North Topsail Beach, North Carolina, sits in USDA hardiness zone 8b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Expect cabbage, fig, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in North Topsail Beach, 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 North Topsail Beach 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 North Topsail Beach — soil, climate, flood, and parcel records. How we handle your address.
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North Topsail Beach — the short answer
North Topsail Beach, North Carolina: USDA zone 8b, about 256 days between hard freezes, across 4K acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 14
- Onslow County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 25
- Onslow County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~256
- Onslow County normal — NOAA 1991–2020, nearest to this town
- Town area
- 4K 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 Onslow County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is North Topsail Beach's average, not your lot's — a low corner or a tree line moves it. Against North Topsail Beach's 256-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in North Topsail Beach
Each reading below is measured for North Topsail Beach itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsNorth Topsail Beach runs about 256 days between hard freezes (read from Onslow County, the closest normal to North Topsail Beach) — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredNorth Topsail Beach 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 North Topsail Beach is in
North Topsail Beach sits in the Middle Atlantic Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at North Topsail Beach's own centroid rather than borrowed from Onslow County.
What Grows in North Topsail Beach
Every plant below cleared North Topsail Beach's own zone 8b and its 256-day season. Each card opens that plant's North Carolina profile. How we score.
Is it too late to plant in North Topsail Beach?
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 14; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 14 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 25 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around North Topsail Beach
Spotted lanternfly documented 31 miles from North Topsail Beach, first recorded 2023. What to watch for.
What's on the federal record near North Topsail Beach
Closest first, within ~10 miles of North Topsail Beach. Listing isn't leaking, and distance isn't exposure.
- ROGERS BAY CAMPWAYUnderground Storage Tanks · 0.8 mi
- ON-307 GW ALLIGATOR BAY OYSTERNitrate · 2.1 mi
- CVS PHARMACY #7550Brownfields · 2.4 mi
- C-CHECK 1Underground Storage Tanks · 2.6 mi
- ON-122 US ARMYNitrate · 4.0 mi
- SCOTCHMAN 231Underground Storage Tanks · 4.1 mi
- SPEEDWAY #8657Underground Storage Tanks · 4.2 mi
- D/B/A MONKS VARIETYUnderground Storage Tanks · 4.2 mi
- ANNS VARIETYUnderground Storage Tanks · 4.2 mi
- HANDY MART 140Underground Storage Tanks · 5.3 mi
- S & L MARINAUnderground Storage Tanks · 5.5 mi
- SNEADS FERRY EXCHANGEUnderground Storage Tanks · 5.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from North Topsail Beach'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 North Topsail Beach.
Total Sites
61
within ~10 miles of North Topsail Beach
Risk Level
Moderate
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of North Topsail Beach
Severity Distribution
within ~10 miles of North Topsail Beach
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around North Topsail Beach, Underground Storage Tanks runs higher than the national average — 40 sites within ~10 miles of North Topsail Beach. That's not a problem with your land — it's information about it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in North Topsail Beach
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 North Topsail Beach average
Your land is one point inside North Topsail Beach
Everything above resolves to North Topsail Beach as a whole — one PHZM band, read across 4K acres, with hard-freeze dates borrowed from Onslow 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 North Topsail Beach Average
North Topsail Beach Average
- ●USDA Zones 8b, averaged across North Topsail Beach
- ●One soil character for all of North Topsail Beach
- ●Frost dates read at North Topsail Beach's scale: Mar 14 to Nov 25
YOUR Parcel
- ✓Your exact zone, not North Topsail Beach's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in North Topsail Beach
Pull a site-specific report for your exact address in North Topsail Beach, North Carolina — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that North Topsail Beach averages can't show:
We read public map data around North Topsail Beach — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the North Topsail Beach average
How we know this about North Topsail Beach
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 Onslow 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 North Topsail Beach
When does frost risk typically end in North Topsail Beach?
The last hard freeze (28°F) in North Topsail Beach typically lands around Mar 14, 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 Apr 4.
When is the first frost in North Topsail Beach?
The first hard freeze (28°F) in North Topsail Beach typically arrives around Nov 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 11, so the watching starts about Oct 26 — about 256 days after the spring freeze cleared.
How long is the growing season in North Topsail Beach?
Measured between 28°F hard freezes, North Topsail Beach sees about 256 frost-free days — roughly Mar 14 through Nov 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 4 to Nov 11, about 221 days.
Is the soil safe to grow vegetables in North Topsail Beach?
The federal record around North Topsail Beach shows 61 documented sites, mostly Underground Storage Tanks entries (40), the nearest Underground Storage Tanks record about 0.8 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in North Topsail Beach?
From about Oct 26 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 25 (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 25. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at North Topsail Beach's scale — its 8b band and its 256-day season. Your yard writes its own version of North Topsail Beach'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 North Topsail Beach’s own scale
6 of the readings below were taken at North Topsail Beach's own scale — the 3,980 acres it covers and 61 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- North Topsail Beach's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 61 documented contamination sites on the federal record near North Topsail Beach, the closest Underground Storage Tanks record about 0.8 miles out from the town centreFederal environmental registers
- North Topsail Beach's boundary and the 3,980 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~256-day seasonGrowable Ground crop-matching engine
- The ecoregion at North Topsail Beach's own centroid, the Middle Atlantic Coastal PlainUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of North Topsail Beachlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- The 28°F hard-freeze dates — North Topsail Beach has no normal of its own, so its county's is the closest measured readfrom Onslow County
- Soil character — no town-scale survey exists, so North Topsail Beach's 3,980 acres read through its county's SSURGO summaryfrom Onslow County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Onslow 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 Onslow County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among North Topsail Beach's 3,980 acreswhy one lot differs from the next →
- Which side of North Topsail Beach you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,980 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.8 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 North Topsail Beach-wide figureread your own land →