Humphrey, Arkansas, sits in USDA hardiness zone 8b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
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 Humphrey, 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 Humphrey 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 Humphrey — soil, climate, flood, and parcel records. How we handle your address.
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Humphrey — the short answer
Humphrey, Arkansas: USDA zone 8b, about 280 days between hard freezes, across 836 acres of city.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 22
- Arkansas County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 29
- Arkansas County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~280
- Arkansas County normal — NOAA 1991–2020, nearest to this town
- City area
- 836 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 Arkansas County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Humphrey's average, not your lot's — a low corner or a tree line moves it. Against Humphrey's 280-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Humphrey
Each reading below is measured for Humphrey itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsHumphrey runs about 280 days between hard freezes (read from Arkansas County, the closest normal to Humphrey) — 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
MeasuredHumphrey 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 Humphrey is in
Humphrey sits in the Mississippi Alluvial Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Humphrey's own centroid rather than borrowed from Arkansas County.
What Grows in Humphrey
Every plant below cleared Humphrey's own zone 8b and its 280-day season. Each card opens that plant's Arkansas profile. How we score.
Is it too late to plant in Humphrey?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Jan 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 22 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 29 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.
What's on the federal record near Humphrey
Closest first, within ~10 miles of Humphrey. Listing isn't leaking, and distance isn't exposure.
- HUMPHREY AUTO REPAIRUnderground Storage Tanks · 850 ft
- SAM FOOD MART LLCUnderground Storage Tanks · 1400 ft
- HARVILL FARMS , JOHN D.Underground Storage Tanks · 2100 ft
- HUMPHREY SCHOOL DISTRICTUnderground Storage Tanks · 2100 ft
- 03S07W03ABB1Nitrate · 4.7 mi
- 04S07W23DBA1Nitrate · 5.7 mi
- GRAND PRAIRIE REGIONAL WATERPFAS · 6.6 mi
- WABBASEKA-TUCKER SCHOOLUnderground Storage Tanks · 6.7 mi
- WABBASEKA HIGH SCHOOL CHEMICAL LABSuperfund · 6.8 mi
- SIMMS SOUL FOOD CAFEUnderground Storage Tanks · 6.8 mi
- BURTON, CHARLIE EXXONUnderground Storage Tanks · 6.9 mi
- 04S07W18ADD1Nitrate · 6.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Humphrey'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 Humphrey.
Total Sites
62
within ~10 miles of Humphrey
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Humphrey
Severity Distribution
within ~10 miles of Humphrey
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
Check your specific parcel in Humphrey
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 Humphrey average
Your land is one point inside Humphrey
Everything above resolves to Humphrey as a whole — one PHZM band, read across 836 acres, with hard-freeze dates borrowed from Arkansas County’s record because no 30-year normal resolves at this city’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 city 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 Humphrey Average
Humphrey Average
- ●USDA Zones 8b, averaged across Humphrey
- ●One soil character for all of Humphrey
- ●Frost dates read at Humphrey's scale: Feb 22 to Nov 29
YOUR Parcel
- ✓Your exact zone, not Humphrey's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Humphrey
Pull a site-specific report for your exact address in Humphrey, Arkansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Humphrey averages can't show:
We read public map data around Humphrey — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Humphrey average
How we know this about Humphrey
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Arkansas 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 city grain anywhere on this page — there is no city-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 Humphrey
When does frost risk typically end in Humphrey?
The last hard freeze (28°F) in Humphrey typically lands around Feb 22, 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 15.
When is the first frost in Humphrey?
The first hard freeze (28°F) in Humphrey typically arrives around Nov 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 15, so the watching starts about Oct 30 — about 280 days after the spring freeze cleared.
How long is the growing season in Humphrey?
Measured between 28°F hard freezes, Humphrey sees about 280 frost-free days — roughly Feb 22 through Nov 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 15 to Nov 15, about 245 days.
Is the soil safe to grow vegetables in Humphrey?
The federal record around Humphrey is a meaningful one — 62 documented sites, mostly Underground Storage Tanks entries (33), the nearest Underground Storage Tanks record about 0.2 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 Humphrey?
From about Oct 30 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 29 (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 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Humphrey's scale — its 8b band and its 280-day season. Your yard writes its own version of Humphrey'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 Humphrey’s own scale
5 of the readings below were taken at Humphrey's own scale — the 836 acres it covers and 62 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Humphrey's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 62 documented contamination sites on the federal record near Humphrey, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Humphrey's boundary and the 836 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~280-day seasonGrowable Ground crop-matching engine
- The ecoregion at Humphrey's own centroid, the Mississippi Alluvial PlainUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Humphrey has no normal of its own, so its county's is the closest measured readfrom Arkansas County
- Soil character — no town-scale survey exists, so Humphrey's 836 acres read through its county's SSURGO summaryfrom Arkansas County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Arkansas County
- The growing challenges every Arkansas grower plans around — written at state scale, so they stay on the state guidefrom Arkansas
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Arkansas County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Humphrey's 836 acreswhy one lot differs from the next →
- Which side of Humphrey you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 836 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Humphrey-wide figureread your own land →
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