Woodworth, North Dakota, sits in USDA hardiness zone 4a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
These conditions suit cabbage, cranberry, turkish rocket, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Woodworth, 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 Woodworth 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 Woodworth — soil, climate, flood, and parcel records. How we handle your address.
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Woodworth — the short answer
Woodworth, North Dakota: USDA zone 4a, about 156 days between hard freezes, across 136 acres of city.
- USDA zone
- 4a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 5
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~156
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 136 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 4a is Woodworth's average, not your lot's — a low corner or a tree line moves it. Against Woodworth's 156-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Woodworth
Each reading below is measured for Woodworth itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWoodworth runs about 156 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredWoodworth sits in USDA hardiness zone 4a.
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 Woodworth is in
Woodworth sits in the Northwestern Glaciated Plains — EPA Level III, inside the wider Great Plains. That is read at Woodworth's own centroid, and it is not what its county reads: Stutsman County is mostly Northern Glaciated Plains. The wider page above you is answering a different question about different ground.
What Grows in Woodworth
Every plant below cleared Woodworth's own zone 4a and its 156-day season. Each card opens that plant's North Dakota profile. How we score.
Is it too late to plant in Woodworth?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Apr 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 5 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 8 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
What's on the federal record near Woodworth
Closest first, within ~10 miles of Woodworth. Listing isn't leaking, and distance isn't exposure.
- Schultz Standard ServiceUnderground Storage Tanks · 250 ft
- WOODWORTH FARMERS GRAIN COMPANYToxics Release Inventory · 600 ft
- Woodworth Public School District 30Underground Storage Tanks · 900 ft
- Federal Aviation AdministrationUnderground Storage Tanks · 2.6 mi
- Northern Prairie Wildlife Research CenterUnderground Storage Tanks · 2.8 mi
- 142-067-05CBANitrate · 4.8 mi
- Walter Holzworth FarmUnderground Storage Tanks · 5.7 mi
- 143-068-04CCCNitrate · 5.8 mi
- Lou Ann RedlinUnderground Storage Tanks · 6.4 mi
- 141-068-02CCDNitrate · 6.4 mi
- 142-069-28DDDNitrate · 6.8 mi
- 142-069-34BBCNitrate · 6.9 mi
5 more sites are on the record inside the same radius. See them on the map
Measured from Woodworth'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 Woodworth.
Total Sites
27
within ~10 miles of Woodworth
Risk Level
Low
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Woodworth
Severity Distribution
within ~10 miles of Woodworth
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Woodworth, Nitrate runs higher than the national average — 20 sites within ~10 miles of Woodworth. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Woodworth
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 Woodworth average
Your land is one point inside Woodworth
Everything above resolves to Woodworth as a whole — one PHZM band and one 28°F frost record, read across 136 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 city 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 Woodworth Average
Woodworth Average
- ●USDA Zones 4a, averaged across Woodworth
- ●One soil character for all of Woodworth
- ●Frost dates read at Woodworth's scale: May 5 to Oct 8
YOUR Parcel
- ✓Your exact zone, not Woodworth's 4a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Woodworth
Pull a site-specific report for your exact address in Woodworth, North Dakota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Woodworth averages can't show:
We read public map data around Woodworth — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Woodworth average
How we know this about Woodworth
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Woodworth’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 city grain anywhere on this page — there is no city-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 Woodworth
When does frost risk typically end in Woodworth?
The last hard freeze (28°F) in Woodworth typically lands around May 5, 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 May 26.
When is the first frost in Woodworth?
The first hard freeze (28°F) in Woodworth typically arrives around Oct 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 24, so the watching starts about Sep 8 — about 156 days after the spring freeze cleared.
How long is the growing season in Woodworth?
Measured between 28°F hard freezes, Woodworth sees about 156 frost-free days — roughly May 5 through Oct 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 26 to Sep 24, about 121 days.
Is the soil safe to grow vegetables in Woodworth?
The federal record around Woodworth is light — 27 documented sites across the 9 federal source types we checked, mostly Nitrate entries (20), the nearest Underground Storage Tanks record under a tenth of a mile out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do I protect my plants from frost in Woodworth?
From about Sep 8 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 Oct 8 (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 Oct 8. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Woodworth's scale — its 4a band and its 156-day season. Your yard writes its own version of Woodworth'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 Woodworth’s own scale
6 of the readings below were taken at Woodworth's own scale — its own ~156-day season between 28°F freezes, the 136 acres it covers and 27 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Woodworth's own USDA hardiness band, zones 4aUSDA PHZM 2023
- Woodworth's own 28°F hard-freeze dates, about May 5 and Oct 8 and the ~156-day span between themNOAA 1991–2020 Climate Normals
- 27 documented contamination sites on the federal record near Woodworth, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Woodworth's boundary and the 136 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4a and a ~156-day seasonGrowable Ground crop-matching engine
- Woodworth sits in the Northwestern Glaciated Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Woodworth's 136 acres read through its county's SSURGO summaryfrom Stutsman County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Stutsman County
- The growing challenges every North Dakota grower plans around — written at state scale, so they stay on the state guidefrom North Dakota
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Stutsman County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Woodworth's 136 acreswhy one lot differs from the next →
- Which side of Woodworth you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 136 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Woodworth-wide figureread your own land →
More in North Dakota
Wider growing context
What grows across North DakotaWoodworth sits outside our named growing regions, so North Dakota as a whole is its closest context here.