Richfield, North Carolina, sits in USDA hardiness zone 8a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
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 Richfield, 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 Richfield 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 Richfield — soil, climate, flood, and parcel records. How we handle your address.
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Richfield — the short answer
Richfield, North Carolina: USDA zone 8a, about 238 days between hard freezes, across 2K acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 20
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 13
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~238
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K 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 Richfield's average, not your lot's — a low corner or a tree line moves it. Against Richfield's 238-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Richfield
Each reading below is measured for Richfield itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRichfield runs about 238 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
MeasuredRichfield 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 Richfield is in
Richfield sits in the Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Richfield's own centroid rather than borrowed from Stanly County.
What Grows in Richfield
Every plant below cleared Richfield's own zone 8a and its 238-day season. Each card opens that plant's North Carolina profile. How we score.
Is it too late to plant in Richfield?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Feb 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 20 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 13 — 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 Richfield
Survey cells within 31 miles of Richfield checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 32 miles off. What to watch for.
What's on the federal record near Richfield
Closest first, within ~10 miles of Richfield. Listing isn't leaking, and distance isn't exposure.
- RICHFIELD FOODUnderground Storage Tanks · 1400 ft
- OAKWOOD HOMESUnderground Storage Tanks · 2000 ft
- B.B. OIL INCUnderground Storage Tanks · 2000 ft
- SUNNYBROOK FARMS, INC.Underground Storage Tanks · 2000 ft
- CMH MANUFACTURING INCORPORATEDToxics Release Inventory · 2000 ft
- ALCO 18Underground Storage Tanks · 2200 ft
- CVS PHARMACY #7696Brownfields · 2500 ft
- HOMES BY OAKWOOD INCORPORATEDToxics Release Inventory · 0.5 mi
- 786 BMN INC DBA ANDY'S MARTUnderground Storage Tanks · 0.5 mi
- COX'S GROCERYUnderground Storage Tanks · 0.6 mi
- BRS INCUnderground Storage Tanks · 0.6 mi
- GALLOWAY 76Underground Storage Tanks · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Richfield'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 Richfield.
Total Sites
263
within ~10 miles of Richfield
Risk Level
High
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Richfield
Severity Distribution
within ~10 miles of Richfield
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Richfield, two things run higher than the national average within ~10 miles of Richfield — PFAS (4 sites) and Mining (18 sites). That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in Richfield
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 Richfield average
Your land is one point inside Richfield
Everything above resolves to Richfield as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Richfield Average
Richfield Average
- ●USDA Zones 8a, averaged across Richfield
- ●One soil character for all of Richfield
- ●Frost dates read at Richfield's scale: Mar 20 to Nov 13
YOUR Parcel
- ✓Your exact zone, not Richfield's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Richfield
Pull a site-specific report for your exact address in Richfield, North Carolina — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Richfield averages can't show:
We read public map data around Richfield — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Richfield average
How we know this about Richfield
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 Richfield’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 Richfield
When does frost risk typically end in Richfield?
The last hard freeze (28°F) in Richfield typically lands around Mar 20, 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 10.
When is the first frost in Richfield?
The first hard freeze (28°F) in Richfield typically arrives around Nov 13, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 30, so the watching starts about Oct 14 — about 238 days after the spring freeze cleared.
How long is the growing season in Richfield?
Measured between 28°F hard freezes, Richfield sees about 238 frost-free days — roughly Mar 20 through Nov 13, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 10 to Oct 30, about 203 days.
Is the soil safe to grow vegetables in Richfield?
The federal record around Richfield runs heavier than most — 263 documented sites, mostly Underground Storage Tanks entries (181), the nearest Underground Storage Tanks record about 0.3 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Richfield?
From about Oct 14 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 13 (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 13. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Richfield's scale — its 8a band and its 238-day season. Your yard writes its own version of Richfield'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 Richfield’s own scale
7 of the readings below were taken at Richfield's own scale — its own ~238-day season between 28°F freezes, the 1,550 acres it covers and 263 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Richfield's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Richfield's own 28°F hard-freeze dates, about Mar 20 and Nov 13 and the ~238-day span between themNOAA 1991–2020 Climate Normals
- 263 documented contamination sites on the federal record near Richfield, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Richfield's boundary and the 1,550 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~238-day seasonGrowable Ground crop-matching engine
- The ecoregion at Richfield's own centroid, the PiedmontUS EPA Level III Ecoregions
- Lanternfly survey cells around Richfield 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 Richfield's 1,550 acres read through its county's SSURGO summaryfrom Stanly County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Stanly 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 Stanly County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Richfield's 1,550 acreswhy one lot differs from the next →
- Which side of Richfield you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,550 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 Richfield-wide figureread your own land →
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