Seaboard, North Carolina, sits in USDA hardiness zone 8a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
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 Seaboard, 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 Seaboard 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 Seaboard — soil, climate, flood, and parcel records. How we handle your address.
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Seaboard — the short answer
Seaboard, North Carolina: USDA zone 8a, about 240 days between hard freezes, across 616 acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 16
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~240
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 616 acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 8a is Seaboard's average, not your lot's — a low corner or a tree line moves it. Against Seaboard's 240-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Seaboard
Each reading below is measured for Seaboard itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSeaboard runs about 240 days between hard freezes — 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
MeasuredSeaboard sits in USDA hardiness zone 8a.
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 Seaboard is in
Seaboard sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Seaboard's own centroid rather than borrowed from Northampton County.
What Grows in Seaboard
Every plant below cleared Seaboard's own zone 8a and its 240-day season. Each card opens that plant's North Carolina profile. How we score.
Is it too late to plant in Seaboard?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 21; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 21 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 16 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Seaboard
Spotted lanternfly documented 8 miles from Seaboard, first recorded 2021. What to watch for.
What's on the federal record near Seaboard
Closest first, within ~10 miles of Seaboard. Listing isn't leaking, and distance isn't exposure.
- BROWNHART SERVICE STATIONUnderground Storage Tanks · 200 ft
- CUPBOARD FOOD STOREUnderground Storage Tanks · 350 ft
- J.A. BLYTHE EXXONUnderground Storage Tanks · 450 ft
- M R DAVISUnderground Storage Tanks · 450 ft
- GILBERT PRUDENUnderground Storage Tanks · 450 ft
- RAMSAY BROS INCUnderground Storage Tanks · 450 ft
- SEABOARD GIN CO.Underground Storage Tanks · 1700 ft
- NO-046 SEABOARD MUNNitrate · 1800 ft
- OVERTON'S EXXONUnderground Storage Tanks · 2000 ft
- NO-045 SEABOARD MUNNitrate · 2400 ft
- INTERNATIONAL PAPER COMPANYToxics Release Inventory · 0.8 mi
- INTERNATIONAL PAPER COMPANYBrownfields · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Seaboard'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 Seaboard.
Total Sites
105
within ~10 miles of Seaboard
Risk Level
Moderate
Highest-severity
5 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Seaboard
Severity Distribution
within ~10 miles of Seaboard
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Seaboard, Underground Storage Tanks runs higher than the national average — 88 sites within ~10 miles of Seaboard. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Seaboard
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 Seaboard average
Your land is one point inside Seaboard
Everything above resolves to Seaboard as a whole — one PHZM band and one 28°F frost record, read across 616 acres. 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 Seaboard Average
Seaboard Average
- ●USDA Zones 8a, averaged across Seaboard
- ●One soil character for all of Seaboard
- ●Frost dates read at Seaboard's scale: Mar 21 to Nov 16
YOUR Parcel
- ✓Your exact zone, not Seaboard's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Seaboard
Pull a site-specific report for your exact address in Seaboard, North Carolina — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Seaboard averages can't show:
We read public map data around Seaboard — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Seaboard average
How we know this about Seaboard
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 Seaboard’s own record; 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 Seaboard
When does frost risk typically end in Seaboard?
The last hard freeze (28°F) in Seaboard typically lands around Mar 21, 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 11.
When is the first frost in Seaboard?
The first hard freeze (28°F) in Seaboard typically arrives around Nov 16, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 2, so the watching starts about Oct 17 — about 240 days after the spring freeze cleared.
How long is the growing season in Seaboard?
Measured between 28°F hard freezes, Seaboard sees about 240 frost-free days — roughly Mar 21 through Nov 16, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 11 to Nov 2, about 205 days.
Is the soil safe to grow vegetables in Seaboard?
The federal record around Seaboard shows 105 documented sites, mostly Underground Storage Tanks entries (88), the nearest Underground Storage Tanks record under a tenth of a mile 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 Seaboard?
From about Oct 17 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 16 (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 16. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Seaboard's scale — its 8a band and its 240-day season. Your yard writes its own version of Seaboard'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 Seaboard’s own scale
7 of the readings below were taken at Seaboard's own scale — its own ~240-day season between 28°F freezes, the 616 acres it covers and 105 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Seaboard's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Seaboard's own 28°F hard-freeze dates, about Mar 21 and Nov 16 and the ~240-day span between themNOAA 1991–2020 Climate Normals
- 105 documented contamination sites on the federal record near Seaboard, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Seaboard's boundary and the 616 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~240-day seasonGrowable Ground crop-matching engine
- The ecoregion at Seaboard's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Seaboardlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Seaboard's 616 acres read through its county's SSURGO summaryfrom Northampton County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Northampton 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 Northampton County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Seaboard's 616 acreswhy one lot differs from the next →
- Which side of Seaboard you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 616 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Seaboard-wide figureread your own land →