Tinsman, Arkansas, sits in USDA hardiness zone 8a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Well-matched crops include cabbage, fig, california poppy, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Tinsman, 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 Tinsman 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 Tinsman — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Tinsman — the short answer
Tinsman, Arkansas: USDA zone 8a, about 257 days between hard freezes, across 339 acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 6
- Calhoun County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 18
- Calhoun County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~257
- Calhoun County normal — NOAA 1991–2020, nearest to this town
- Town area
- 339 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 Calhoun County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8a is Tinsman's average, not your lot's — a low corner or a tree line moves it. Against Tinsman's 257-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Tinsman
Each reading below is measured for Tinsman itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsTinsman runs about 257 days between hard freezes (read from Calhoun County, the closest normal to Tinsman) — 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
MeasuredTinsman 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 Tinsman is in
Tinsman sits in the South Central Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Tinsman's own centroid rather than borrowed from Calhoun County.
What Grows in Tinsman
Every plant below cleared Tinsman's own zone 8a and its 257-day season. Each card opens that plant's Arkansas profile. How we score.
Is it too late to plant in Tinsman?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 6; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 6 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 18 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
What's on the federal record near Tinsman
Closest first, within ~10 miles of Tinsman. Listing isn't leaking, and distance isn't exposure.
- 12S12W33CBB1Nitrate · 500 ft
- BILLY McMANUSUnderground Storage Tanks · 800 ft
- 12S12W33CBC1Nitrate · 900 ft
- 12S12W26BAC1Nitrate · 2.4 mi
- 12S12W26BAC2Nitrate · 2.4 mi
- 13S12W17BAD1Nitrate · 2.7 mi
- 12S13W35CDB1Nitrate · 3.3 mi
- 12S12W08DAC1Nitrate · 3.9 mi
- 13S13W10DCD1Nitrate · 4.6 mi
- 13S12W29BDD1Nitrate · 4.8 mi
- 13S13W09CBD1Nitrate · 5.6 mi
- JEFF'S ONE STOPUnderground Storage Tanks · 6.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Tinsman'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 Tinsman.
Total Sites
94
within ~10 miles of Tinsman
Risk Level
Moderate
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Tinsman
Severity Distribution
within ~10 miles of Tinsman
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Tinsman, Nitrate runs higher than the national average — 68 sites within ~10 miles of Tinsman. 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 Tinsman
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 Tinsman average
Your land is one point inside Tinsman
Everything above resolves to Tinsman as a whole — one PHZM band, read across 339 acres, with hard-freeze dates borrowed from Calhoun 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 Tinsman Average
Tinsman Average
- ●USDA Zones 8a, averaged across Tinsman
- ●One soil character for all of Tinsman
- ●Frost dates read at Tinsman's scale: Mar 6 to Nov 18
YOUR Parcel
- ✓Your exact zone, not Tinsman's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Tinsman
Pull a site-specific report for your exact address in Tinsman, Arkansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Tinsman averages can't show:
We read public map data around Tinsman — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Tinsman average
How we know this about Tinsman
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 Calhoun 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 Tinsman
When does frost risk typically end in Tinsman?
The last hard freeze (28°F) in Tinsman typically lands around Mar 6, 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 27.
When is the first frost in Tinsman?
The first hard freeze (28°F) in Tinsman typically arrives around Nov 18, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 4, so the watching starts about Oct 19 — about 257 days after the spring freeze cleared.
How long is the growing season in Tinsman?
Measured between 28°F hard freezes, Tinsman sees about 257 frost-free days — roughly Mar 6 through Nov 18, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 27 to Nov 4, about 222 days.
Is the soil safe to grow vegetables in Tinsman?
The federal record around Tinsman shows 94 documented sites, mostly Nitrate entries (68), the nearest Nitrate 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 Tinsman?
From about Oct 19 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 18 (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 18. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Tinsman's scale — its 8a band and its 257-day season. Your yard writes its own version of Tinsman'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 Tinsman’s own scale
5 of the readings below were taken at Tinsman's own scale — the 339 acres it covers and 94 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Tinsman's own USDA hardiness band, zones 8aUSDA PHZM 2023
- 94 documented contamination sites on the federal record near Tinsman, the closest Nitrate record under a tenth of a mile out from the town centreFederal environmental registers
- Tinsman's boundary and the 339 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~257-day seasonGrowable Ground crop-matching engine
- The ecoregion at Tinsman's own centroid, the South Central PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Tinsman has no normal of its own, so its county's is the closest measured readfrom Calhoun County
- Soil character — no town-scale survey exists, so Tinsman's 339 acres read through its county's SSURGO summaryfrom Calhoun County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Calhoun 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 Calhoun County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Tinsman's 339 acreswhy one lot differs from the next →
- Which side of Tinsman you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 339 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Tinsman-wide figureread your own land →