JAARS, North Carolina, sits in USDA hardiness zone 8a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
The conditions favor cabbage, fig, california poppy, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in JAARS, 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 JAARS 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 JAARS — soil, climate, flood, and parcel records. How we handle your address.
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JAARS — the short answer
JAARS, North Carolina: USDA zone 8a, about 256 days between hard freezes, across 550 acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~256
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 550 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 JAARS's average, not your lot's — a low corner or a tree line moves it. Against JAARS's 256-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in JAARS
Each reading below is measured for JAARS itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredJAARS runs about 256 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
MeasuredJAARS 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 JAARS is in
JAARS sits in the Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at JAARS's own centroid rather than borrowed from Union County.
What Grows in JAARS
Every plant below cleared JAARS's own zone 8a and its 256-day season. Each card opens that plant's North Carolina profile. How we score.
Is it too late to plant in JAARS?
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 12; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 12 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 23 — 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 JAARS
Survey cells within 31 miles of JAARS checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 44 miles off. What to watch for.
What's on the federal record near JAARS
Closest first, within ~10 miles of JAARS. Listing isn't leaking, and distance isn't exposure.
- JAARS INCUnderground Storage Tanks · 1400 ft
- UN-149 NR WAXHAW, NC FELSIC METAVOLCANICNitrate · 1900 ft
- BEST STOP 2Underground Storage Tanks · 2.3 mi
- COUNTRY MARKETUnderground Storage Tanks · 2.6 mi
- KANE KREEK BPUnderground Storage Tanks · 2.7 mi
- UN- 143Nitrate · 2.9 mi
- A. S. SIMPSON GROCERYUnderground Storage Tanks · 3.0 mi
- REBOUND BEHAVIORAL HEALTHBrownfields · 3.0 mi
- WAXHAW FURNITURE FACTORY OUTLETUnderground Storage Tanks · 3.2 mi
- WHITEUnderground Storage Tanks · 3.3 mi
- THOMAS PATTON SMITHUnderground Storage Tanks · 3.4 mi
- ANDREW JACKSON STATE PARKUnderground Storage Tanks · 3.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from JAARS'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 JAARS.
Sources Checked
within ~10 miles of JAARS
Severity Distribution
within ~10 miles of JAARS
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around JAARS, two things run higher than the national average within ~10 miles of JAARS — Toxics Release Inventory (16 sites) and Underground Storage Tanks (135 sites). That's not a problem with your land — it's information about it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in JAARS
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 JAARS average
Your land is one point inside JAARS
Everything above resolves to JAARS as a whole — one PHZM band and one 28°F frost record, read across 550 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 JAARS Average
JAARS Average
- ●USDA Zones 8a, averaged across JAARS
- ●One soil character for all of JAARS
- ●Frost dates read at JAARS's scale: Mar 12 to Nov 23
YOUR Parcel
- ✓Your exact zone, not JAARS's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in JAARS
Pull a site-specific report for your exact address in JAARS, North Carolina — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that JAARS averages can't show:
We read public map data around JAARS — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the JAARS average
How we know this about JAARS
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 JAARS’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 JAARS
When does frost risk typically end in JAARS?
The last hard freeze (28°F) in JAARS typically lands around Mar 12, 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 2.
When is the first frost in JAARS?
The first hard freeze (28°F) in JAARS typically arrives around Nov 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 9, so the watching starts about Oct 24 — about 256 days after the spring freeze cleared.
How long is the growing season in JAARS?
Measured between 28°F hard freezes, JAARS sees about 256 frost-free days — roughly Mar 12 through Nov 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 2 to Nov 9, about 221 days.
Is the soil safe to grow vegetables in JAARS?
The federal record around JAARS is a meaningful one — 216 documented sites, mostly Underground Storage Tanks entries (135), the nearest Underground Storage Tanks record about 0.3 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 JAARS?
From about Oct 24 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 23 (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 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at JAARS's scale — its 8a band and its 256-day season. Your yard writes its own version of JAARS'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 JAARS’s own scale
7 of the readings below were taken at JAARS's own scale — its own ~256-day season between 28°F freezes, the 550 acres it covers and 216 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- JAARS's own USDA hardiness band, zones 8aUSDA PHZM 2023
- JAARS's own 28°F hard-freeze dates, about Mar 12 and Nov 23 and the ~256-day span between themNOAA 1991–2020 Climate Normals
- 216 documented contamination sites on the federal record near JAARS, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- JAARS's boundary and the 550 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~256-day seasonGrowable Ground crop-matching engine
- The ecoregion at JAARS's own centroid, the PiedmontUS EPA Level III Ecoregions
- Lanternfly survey cells around JAARS checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so JAARS's 550 acres read through its county's SSURGO summaryfrom Union County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Union 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 Union County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among JAARS's 550 acreswhy one lot differs from the next →
- Which side of JAARS you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 550 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 JAARS-wide figureread your own land →
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