Ponca, Arkansas, sits in USDA hardiness zone 7b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
On paper, cabbage, prickly pear, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Ponca, 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 Ponca 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 Ponca — soil, climate, flood, and parcel records. How we handle your address.
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Ponca — the short answer
Ponca, Arkansas: USDA zone 7b, about 241 days between hard freezes, across 391 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 17
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~241
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 391 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 7b is Ponca's average, not your lot's — a low corner or a tree line moves it. Against Ponca's 241-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Ponca
Each reading below is measured for Ponca itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredPonca runs about 241 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
MeasuredPonca sits in USDA hardiness zone 7b.
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 Ponca is in
Ponca sits in the Boston Mountains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Ponca's own centroid rather than borrowed from Newton County.
What Grows in Ponca
Every plant below cleared Ponca's own zone 7b and its 241-day season. Each card opens that plant's Arkansas profile. How we score.
Is it too late to plant in Ponca?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 21; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 21 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 17 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
What's on the federal record near Ponca
Closest first, within ~10 miles of Ponca. Listing isn't leaking, and distance isn't exposure.
- LOST VALLEY CANOE(GENERAL STORUnderground Storage Tanks · 1300 ft
- BUFFALO OUTDOOR CENTERUnderground Storage Tanks · 2300 ft
- Ponca City MineMining · 0.7 mi
- PoncaMining · 0.9 mi
- BeechwoodMining · 0.9 mi
- BrewerMining · 1.0 mi
- KilgoreMining · 1.6 mi
- Chimney Rock MineMining · 1.6 mi
- Brewer No 2Mining · 1.7 mi
- BennettMining · 2.1 mi
- Canton MineMining · 2.7 mi
- KENNETH VILLINESUnderground Storage Tanks · 5.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Ponca'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 Ponca.
Sources Checked
within ~10 miles of Ponca
Severity Distribution
within ~10 miles of Ponca
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Ponca, Mining runs higher than the national average — 16 sites within ~10 miles of Ponca. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in Ponca
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 Ponca average
Your land is one point inside Ponca
Everything above resolves to Ponca as a whole — one PHZM band and one 28°F frost record, read across 391 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 Ponca Average
Ponca Average
- ●USDA Zones 7b, averaged across Ponca
- ●One soil character for all of Ponca
- ●Frost dates read at Ponca's scale: Mar 21 to Nov 17
YOUR Parcel
- ✓Your exact zone, not Ponca's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Ponca
Pull a site-specific report for your exact address in Ponca, Arkansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Ponca averages can't show:
We read public map data around Ponca — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Ponca average
How we know this about Ponca
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 Ponca’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 Ponca
When does frost risk typically end in Ponca?
The last hard freeze (28°F) in Ponca typically lands around Mar 21, 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 11.
When is the first frost in Ponca?
The first hard freeze (28°F) in Ponca typically arrives around Nov 17, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 3, so the watching starts about Oct 18 — about 241 days after the spring freeze cleared.
How long is the growing season in Ponca?
Measured between 28°F hard freezes, Ponca sees about 241 frost-free days — roughly Mar 21 through Nov 17, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 11 to Nov 3, about 206 days.
Is the soil safe to grow vegetables in Ponca?
The federal record around Ponca runs heavier than most — 34 documented sites, mostly Mining entries (16), 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 Ponca?
From about Oct 18 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 17 (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 17. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Ponca's scale — its 7b band and its 241-day season. Your yard writes its own version of Ponca'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 Ponca’s own scale
6 of the readings below were taken at Ponca's own scale — its own ~241-day season between 28°F freezes, the 391 acres it covers and 34 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Ponca's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Ponca's own 28°F hard-freeze dates, about Mar 21 and Nov 17 and the ~241-day span between themNOAA 1991–2020 Climate Normals
- 34 documented contamination sites on the federal record near Ponca, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Ponca's boundary and the 391 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~241-day seasonGrowable Ground crop-matching engine
- The ecoregion at Ponca's own centroid, the Boston MountainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Ponca's 391 acres read through its county's SSURGO summaryfrom Newton County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Newton 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 Newton County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Ponca's 391 acreswhy one lot differs from the next →
- Which side of Ponca you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 391 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 Ponca-wide figureread your own land →
More in Arkansas
Wider growing context
What grows across ArkansasPonca sits outside our named growing regions, so Arkansas as a whole is its closest context here.