Grantsboro, North Carolina, sits in USDA hardiness zone 8b — a zone band wide enough that plant choice, not possibility, is the interesting question.
On paper, cabbage, fig, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Grantsboro, 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 Grantsboro 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 Grantsboro — soil, climate, flood, and parcel records. How we handle your address.
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Grantsboro — the short answer
Grantsboro, North Carolina: USDA zone 8b, about 292 days between hard freezes, across 2K acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 23
- Pamlico County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 12
- Pamlico County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~292
- Pamlico County normal — NOAA 1991–2020, nearest to this town
- Town area
- 2K 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 Pamlico County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Grantsboro's average, not your lot's — a low corner or a tree line moves it. Against Grantsboro's 292-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Grantsboro
Each reading below is measured for Grantsboro itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsGrantsboro runs about 292 days between hard freezes (read from Pamlico County, the closest normal to Grantsboro) — 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
MeasuredGrantsboro 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 Grantsboro is in
Grantsboro sits in the Middle Atlantic Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Grantsboro's own centroid rather than borrowed from Pamlico County.
What Grows in Grantsboro
Every plant below cleared Grantsboro's own zone 8b and its 292-day season. Each card opens that plant's North Carolina profile. How we score.
Is it too late to plant in Grantsboro?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Jan 26; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 23 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 12 — long-season crops need about 90 days of runway, quick greens only 30. Here the calendar nearly circles: cool-season crops take the winter shift, and the next window is always close.
Documented around Grantsboro
Survey cells within 31 miles of Grantsboro checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 86 miles off. What to watch for.
What's on the federal record near Grantsboro
Closest first, within ~10 miles of Grantsboro. Listing isn't leaking, and distance isn't exposure.
- CVS PHARMACY #3987Brownfields · 1700 ft
- SPEEDWAY #8262Underground Storage Tanks · 2000 ft
- WALMART SUPERCENTER #7238Brownfields · 2100 ft
- SAWYER'S CONV MARTUnderground Storage Tanks · 2100 ft
- COUNTRY OUTLETUnderground Storage Tanks · 2100 ft
- GRANTSBORO SERVICE STATIONUnderground Storage Tanks · 2100 ft
- HANDY MART 11Underground Storage Tanks · 1.2 mi
- PAMLICO CO HDQUnderground Storage Tanks · 1.5 mi
- PA-026Nitrate · 1.5 mi
- PA-027Nitrate · 2.1 mi
- ROYSTER COMPANYUnderground Storage Tanks · 2.4 mi
- PAMLICO COUNTY SCH BUS GARAGEUnderground Storage Tanks · 2.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Grantsboro'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 Grantsboro.
Sources Checked
within ~10 miles of Grantsboro
Severity Distribution
within ~10 miles of Grantsboro
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Grantsboro, Nitrate runs higher than the national average — 46 sites within ~10 miles of Grantsboro. 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 Grantsboro
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 Grantsboro average
Your land is one point inside Grantsboro
Everything above resolves to Grantsboro as a whole — one PHZM band, read across 2K acres, with hard-freeze dates borrowed from Pamlico 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 Grantsboro Average
Grantsboro Average
- ●USDA Zones 8b, averaged across Grantsboro
- ●One soil character for all of Grantsboro
- ●Frost dates read at Grantsboro's scale: Feb 23 to Dec 12
YOUR Parcel
- ✓Your exact zone, not Grantsboro's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Grantsboro
Pull a site-specific report for your exact address in Grantsboro, North Carolina — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Grantsboro averages can't show:
We read public map data around Grantsboro — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Grantsboro average
How we know this about Grantsboro
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 Pamlico 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 Grantsboro
When does frost risk typically end in Grantsboro?
The last hard freeze (28°F) in Grantsboro typically lands around Feb 23, 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 16.
When is the first frost in Grantsboro?
The first hard freeze (28°F) in Grantsboro typically arrives around Dec 12, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 28, so the watching starts about Nov 12 — about 292 days after the spring freeze cleared.
How long is the growing season in Grantsboro?
Measured between 28°F hard freezes, Grantsboro sees about 292 frost-free days — roughly Feb 23 through Dec 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 16 to Nov 28, about 257 days.
Is the soil safe to grow vegetables in Grantsboro?
The federal record around Grantsboro shows 100 documented sites, mostly Underground Storage Tanks entries (48), the nearest Brownfields record about 0.3 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 Grantsboro?
From about Nov 12 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 Dec 12 (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 Dec 12. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Grantsboro's scale — its 8b band and its 292-day season. Your yard writes its own version of Grantsboro'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 Grantsboro’s own scale
6 of the readings below were taken at Grantsboro's own scale — the 2,467 acres it covers and 100 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Grantsboro's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 100 documented contamination sites on the federal record near Grantsboro, the closest Brownfields record about 0.3 miles out from the town centreFederal environmental registers
- Grantsboro's boundary and the 2,467 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~292-day seasonGrowable Ground crop-matching engine
- The ecoregion at Grantsboro's own centroid, the Middle Atlantic Coastal PlainUS EPA Level III Ecoregions
- Lanternfly survey cells around Grantsboro checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- The 28°F hard-freeze dates — Grantsboro has no normal of its own, so its county's is the closest measured readfrom Pamlico County
- Soil character — no town-scale survey exists, so Grantsboro's 2,467 acres read through its county's SSURGO summaryfrom Pamlico County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Pamlico 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 Pamlico County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Grantsboro's 2,467 acreswhy one lot differs from the next →
- Which side of Grantsboro you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,467 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.3 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 Grantsboro-wide figureread your own land →
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