Halley, 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.
Growers here do well with cabbage, fig, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Halley, 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 Halley 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 Halley — soil, climate, flood, and parcel records. How we handle your address.
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Halley — the short answer
Halley, Arkansas: USDA zone 8b, about 280 days between hard freezes, across 729 acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 20
- Desha County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 27
- Desha County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~280
- Desha County normal — NOAA 1991–2020, nearest to this town
- Town area
- 729 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 Desha County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Halley's average, not your lot's — a low corner or a tree line moves it. Against Halley's 280-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Halley
Each reading below is measured for Halley itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsHalley runs about 280 days between hard freezes (read from Desha County, the closest normal to Halley) — 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
MeasuredHalley 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 Halley is in
Halley sits in the Mississippi Alluvial Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Halley's own centroid rather than borrowed from Desha County.
What Grows in Halley
Every plant below cleared Halley'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 Halley?
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 23; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 20 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 27 — long-season crops need about 90 days of runway, quick greens only 30. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.
What's on the federal record near Halley
Closest first, within ~10 miles of Halley. Listing isn't leaking, and distance isn't exposure.
- 13S02W29CDA1Nitrate · 600 ft
- 13S02W33CAB1Nitrate · 1.0 mi
- 13S02W17ABC1Nitrate · 2.1 mi
- DERMOTT PUBLIC SCHOOLUnderground Storage Tanks · 2.9 mi
- 13S02W08CAA1Nitrate · 3.3 mi
- ARKANSAS FARMUnderground Storage Tanks · 3.5 mi
- FLASH MARKET #104Underground Storage Tanks · 3.6 mi
- 13S03W34BAA1Nitrate · 3.7 mi
- 13S02W05BCA1Nitrate · 4.5 mi
- 13S03W11CAB2Nitrate · 4.6 mi
- 14S03W03BCD1Nitrate · 4.6 mi
- 13S03W10DAA1Nitrate · 4.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Halley'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 Halley.
Total Sites
131
within ~10 miles of Halley
Risk Level
Moderate
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Halley
Severity Distribution
within ~10 miles of Halley
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Halley, Nitrate runs higher than the national average — 78 sites within ~10 miles of Halley. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
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 Halley
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 Halley average
Your land is one point inside Halley
Everything above resolves to Halley as a whole — one PHZM band, read across 729 acres, with hard-freeze dates borrowed from Desha 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 Halley Average
Halley Average
- ●USDA Zones 8b, averaged across Halley
- ●One soil character for all of Halley
- ●Frost dates read at Halley's scale: Feb 20 to Nov 27
YOUR Parcel
- ✓Your exact zone, not Halley's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Halley
Pull a site-specific report for your exact address in Halley, Arkansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Halley averages can't show:
We read public map data around Halley — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Halley average
How we know this about Halley
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 Desha 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 Halley
When does frost risk typically end in Halley?
The last hard freeze (28°F) in Halley typically lands around Feb 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 Mar 13.
When is the first frost in Halley?
The first hard freeze (28°F) in Halley typically arrives around Nov 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 13, so the watching starts about Oct 28 — about 280 days after the spring freeze cleared.
How long is the growing season in Halley?
Measured between 28°F hard freezes, Halley sees about 280 frost-free days — roughly Feb 20 through Nov 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 13 to Nov 13, about 245 days.
Is the soil safe to grow vegetables in Halley?
The federal record around Halley shows 131 documented sites, mostly Nitrate entries (78), the nearest Nitrate record about 0.1 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 Halley?
From about Oct 28 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 27 (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 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Halley's scale — its 8b band and its 280-day season. Your yard writes its own version of Halley'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 Halley’s own scale
5 of the readings below were taken at Halley's own scale — the 729 acres it covers and 131 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Halley's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 131 documented contamination sites on the federal record near Halley, the closest Nitrate record about 0.1 miles out from the town centreFederal environmental registers
- Halley's boundary and the 729 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 Halley's own centroid, the Mississippi Alluvial PlainUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Halley has no normal of its own, so its county's is the closest measured readfrom Desha County
- Soil character — no town-scale survey exists, so Halley's 729 acres read through its county's SSURGO summaryfrom Desha County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Desha 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 Desha County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Halley's 729 acreswhy one lot differs from the next →
- Which side of Halley you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 729 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.1 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 Halley-wide figureread your own land →
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