Avoca, Arkansas, sits in USDA hardiness zone 7a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
A short list that earns its place here — cabbage, hazelnut, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Avoca, 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 Avoca 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 Avoca — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Avoca — the short answer
Avoca, Arkansas: USDA zone 7a, about 229 days between hard freezes, across 1K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 9
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~229
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 7a is Avoca's average, not your lot's — a low corner or a tree line moves it. Against Avoca's 229-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Avoca
Each reading below is measured for Avoca itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAvoca runs about 229 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
MeasuredAvoca sits in USDA hardiness zone 7a.
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 Avoca is in
Avoca sits in the Ozark Highlands — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Avoca's own centroid rather than borrowed from Benton County.
What Grows in Avoca
Every plant below cleared Avoca's own zone 7a and its 229-day season. Each card opens that plant's Arkansas profile. How we score.
Is it too late to plant in Avoca?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Feb 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 25 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 9 — 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 Avoca
Closest first, within ~10 miles of Avoca. Listing isn't leaking, and distance isn't exposure.
- AVOCA QUARRY & PLANTUnderground Storage Tanks · 2300 ft
- AVOCA 1 STOPUnderground Storage Tanks · 0.6 mi
- AVOCA TRUCK STOPUnderground Storage Tanks · 0.7 mi
- FULTON CLASS 3C LANDFILLBrownfields · 1.0 mi
- HARRIS BAKING COMPANYUnderground Storage Tanks · 1.4 mi
- ANDERSON'S GAS & PROPANEUnderground Storage Tanks · 1.6 mi
- HARDING, RAYMONDUnderground Storage Tanks · 2.5 mi
- AHTD-GARFIELD AREA HEADQUARTERUnderground Storage Tanks · 2.5 mi
- N. W. TIRE SERVICEUnderground Storage Tanks · 2.5 mi
- 20N29W13ACA1Nitrate · 2.5 mi
- DISTRICT TRANSFER STATIONBrownfields · 2.7 mi
- MARCK INDUSTRIES INC - NWABrownfields · 2.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Avoca'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 Avoca.
Total Sites
377
within ~10 miles of Avoca
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Avoca
Severity Distribution
within ~10 miles of Avoca
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Avoca, two things run higher than the national average within ~10 miles of Avoca — PFAS (4 sites) and Toxics Release Inventory (25 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Avoca
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 Avoca average
Your land is one point inside Avoca
Everything above resolves to Avoca as a whole — one PHZM band and one 28°F frost record, read across 1K 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 Avoca Average
Avoca Average
- ●USDA Zones 7a, averaged across Avoca
- ●One soil character for all of Avoca
- ●Frost dates read at Avoca's scale: Mar 25 to Nov 9
YOUR Parcel
- ✓Your exact zone, not Avoca's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Avoca
Pull a site-specific report for your exact address in Avoca, Arkansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Avoca averages can't show:
We read public map data around Avoca — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Avoca average
How we know this about Avoca
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 Avoca’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 Avoca
When does frost risk typically end in Avoca?
The last hard freeze (28°F) in Avoca typically lands around Mar 25, 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 15.
When is the first frost in Avoca?
The first hard freeze (28°F) in Avoca typically arrives around Nov 9, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 26, so the watching starts about Oct 10 — about 229 days after the spring freeze cleared.
How long is the growing season in Avoca?
Measured between 28°F hard freezes, Avoca sees about 229 frost-free days — roughly Mar 25 through Nov 9, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 15 to Oct 26, about 194 days.
Is the soil safe to grow vegetables in Avoca?
The federal record around Avoca is a meaningful one — 377 documented sites, mostly Underground Storage Tanks entries (213), the nearest Underground Storage Tanks record about 0.4 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 Avoca?
From about Oct 10 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 9 (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 9. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Avoca's scale — its 7a band and its 229-day season. Your yard writes its own version of Avoca'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 Avoca’s own scale
6 of the readings below were taken at Avoca's own scale — its own ~229-day season between 28°F freezes, the 1,236 acres it covers and 377 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Avoca's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Avoca's own 28°F hard-freeze dates, about Mar 25 and Nov 9 and the ~229-day span between themNOAA 1991–2020 Climate Normals
- 377 documented contamination sites on the federal record near Avoca, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Avoca's boundary and the 1,236 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~229-day seasonGrowable Ground crop-matching engine
- The ecoregion at Avoca's own centroid, the Ozark HighlandsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Avoca's 1,236 acres read through its county's SSURGO summaryfrom Benton County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Benton 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 Benton County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Avoca's 1,236 acreswhy one lot differs from the next →
- Which side of Avoca you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,236 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Avoca-wide figureread your own land →
More in Arkansas
Growing region
Nearby growing guides