Dundy County, in Nebraska, sits in USDA hardiness zone 5b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Well-matched crops include sweet corn, tomato, cottonwood, and sunflower, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Dundy County lies within the High Plains — a regional growing area with its own character.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Dundy County holds more than one microclimate.
Soils and elevations shift across Dundy County, so your frost dates and drainage aren't the county average. Enter your address and we'll score 1,112 plants against your land's actual soil, sun, and frost.
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Quick Facts
USDA Zones
5b
Last Hard Freeze (28°F)
Apr 1
County normal — light frosts run a few weeks later
First Hard Freeze (28°F)
Oct 31
County normal — light frosts arrive a few weeks earlier
County Area
589K acres
Hardiness Zone Range
Zone maps are averages across Dundy County. Your yard's slope, trees, and frost pockets shift what actually grows — see your land's exact reading.
Soil in Dundy County
Across Dundy County, the ground is predominantly Entisols, where Valent, Sulco, and Blackwood are the most extensive named soil series. The soil is generally excessively drained with a sand surface. Topsoil pH runs about 6.6–7.0, neutral. Rainfall drains through hydrologic group A soils.
Soil order
Entisols
Drainage
Excessively drained
Hydric soils
1%
Soil still varies lot by lot — soil types explained.
What Grows in Dundy County
Plants matched to Dundy County's USDA zones 5b — each links to its full growing profile.
Is it too late to plant in Dundy County?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 4; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 1 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 31 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Growing Challenges in Nebraska
What an experienced grower plans around here — each one has a move.
Low western rainfall (15 inches) requires irrigation
In the west, drip lines and deep mulch are the season — design the water first and the garden follows.
Extreme wind exposure on open plains
A windbreak earns its ground: even a shrub row or a snow fence cuts plant stress dramatically.
Hail damage during severe storm season
Keep row cover or hail netting staged through the storm months — five minutes of cover can save the whole bed.
For cultivar selection, pest pressure, and planting-time guidance specific to Nebraska, the Nebraska Extension is the authoritative local source.
Safe to Grow Here?
What the federal record shows across Dundy County — and how to grow with it.
We checked the federal record across Dundy County — 61 documented sites across 5 of the 9 source types we track.
The most significant on record: 1 concentrated animal feeding operation. Large-scale animal operations that can contaminate soil and groundwater with nitrates and pathogens.
The federal record across Dundy County is a modest one — a typical footprint for a growing area. Nothing here calls for alarm; it's worth knowing which recorded sites sit closest to where you grow, and each one on the map carries its type and location. If one turns out to be a near neighbor, a one-time soil test settles the question.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
Environmental Intelligence
Understanding what's nearby helps you make informed decisions about where and how to grow.
Total Sites
61
across Dundy County
Risk Level
Moderate
Highest-severity
1 concentrated animal feeding operation
Sources Checked
across Dundy County
Severity Distribution
across Dundy County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Dundy County, Nitrate runs higher than the national average — 52 sites nearby. 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 Dundy County
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,112 plant recommendations.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
Your Specific Parcel Matters
Dundy County Average
- ●USDA Zones 5b
- ●Generic soil type for the area
- ●State-average frost dates
YOUR Parcel
- ✓Your exact hardiness zone
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Dundy County
Pull a site-specific report for your exact address in Dundy County, Nebraska — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
Key Growing Facts for Dundy County, Nebraska
- USDA Hardiness Zones: 5b (USDA PHZM 2023)
- Last Hard Freeze (28°F): Apr 1 (county normal, NOAA 1991–2020 Climate Normals — light frosts can follow for a few weeks)
- First Hard Freeze (28°F): Oct 31 (county normal, NOAA 1991–2020 Climate Normals — light frosts can arrive a few weeks earlier)
- Days Between Hard Freezes: ~213 (county normal, NOAA 1991–2020 Climate Normals)
- County Land Area: 589K acres (US Census TIGER 2025)
Zone data: USDA ARS Plant Hardiness Zone Map 2023. Climate data: NOAA NCEI. County boundaries: US Census TIGER/Line 2025.
Frost dates here are the Dundy County average. Low spots and tree cover move them by days on any one yard — see your exact frost windows.
Frequently Asked Questions
What hardiness zone is Dundy County, Nebraska?
Dundy County sits in USDA hardiness zone 5b, per the USDA Plant Hardiness Zone Map 2023. Zones reflect average annual extreme minimum temperatures from 1991–2020 weather data.
Is it too late to plant in Dundy County?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 4; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 1 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 31 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
When does frost risk typically end in Dundy County?
The last hard freeze (28°F) in Dundy County typically lands around Apr 1, per NOAA 1991–2020 climate normals — an earlier marker than the light-frost dates many planting charts quote. That marks the hard freeze, not the last light frost — light frosts can still bite for a few more weeks, so tender transplants usually wait another 2–3 weeks.
How long is the growing season in Dundy County?
Measured between 28°F hard freezes, Dundy County sees about 213 frost-free days — roughly Apr 1 through Oct 31, per NOAA 1991–2020 climate normals. Tender crops get a somewhat shorter practical window, since lighter frosts reach a few weeks past the hard-freeze dates on both ends.
What vegetables grow in Dundy County?
Dundy County's zone 5b supports a wide range — strong performers include Sweet Corn, Tomato, Cottonwood, and Sunflower. What actually takes on any one site comes down to its soil, sun, and drainage, and we score each plant against the real conditions at your address.
Which hardiness zone is Dundy County, really?
Officially, Dundy County sits in USDA zone 5b (USDA PHZM 2023) — but a zone is a 30-year average of winter's coldest night across an area, and it can't see any one yard. A south-facing slope, a tree line, or a low frost pocket can shift a single site by half a zone either way, which is why neighboring gardeners often quote different numbers. We read the conditions at your exact address — soil, sun, slope, and frost — and score 1,112 plants against what's actually there.
Is the soil safe to grow vegetables in Dundy County?
The federal record around Dundy County shows 61 documented sites — 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.
Just moved to Dundy County — what should I know before planting?
Start with three facts. Dundy County sits in USDA zone 5b, which sets what survives winter; the last 28°F hard freeze typically clears around Apr 1, with about 213 frost-free days to work with (NOAA 1991–2020 climate normals); and 61 documented sites sit on the federal record — a typical footprint for a growing area, worth a look on the contamination map before food beds. From there, matching plants to your actual soil and sun is the fun part.
Everything on this page is a Dundy County average. Your yard writes its own version — we read soil, sun, drainage, and frost at your exact address. Try it for 14 days — no card required.
Will It Grow Here?
Zone fit is the first question — each answer below reads Nebraska's frost window, season length, and soil profile against the plant's real requirements.