North Dakota spans USDA hardiness zones 3a-4b, with a growing season of about 130 frost-free days — a season built for sprinters: quick vegetables, frost-tolerant greens, and fruit bred for hard winters.
Its growing climate is shaped by 14-22 inches of annual rainfall, a median of roughly 2,250 growing-degree days (base 50°F), and about 1,950 winter chill hours for tree fruit, which together set what ripens and what struggles. The ground itself runs to prairie loam, clay (Red River Valley), sandy loam, and glacial till; drainage character, more than fertility, is usually what sorts the thrivers from the strugglers. Well-matched crops include sunflower, potato, grape (frontenac), and american elm, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Grounded inUSDA PHZM 2023•NOAA Climate Normals•USDA NRCS SSURGO•GDD aggregate (Cornell CALS)•Chill-hour aggregate (MSU Extension)•EPA FRS•USDA PLANTS•Growable Ground suitability scoring
North Dakota spans zones 3a-4b, but your yard sits in exactly one — and slope, tree cover, and low spots nudge it further. 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.
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USDA Zones
3a-4b
USDA PHZM 2023
Last Frost
May 5 - Jun 1
NOAA 30-yr Normals
First Frost
Sep 10 - Oct 1
NOAA 30-yr Normals
Annual Rainfall
14-22 inches
NOAA Climate Normals
Zone maps are averages across North Dakota. Your yard's slope, trees, and frost pockets shift what actually grows — see your land's exact reading.
The soil types that dominate North Dakota — how each drains decides more about crop success than almost anything else. Tap any soil to learn what it is and how to work with it.
Drainage
Good. The crumb structure that prairie roots built lets water in and holds it like a sponge, releasing it steadily through the season.
What thrives
This is some of the most productive crop ground on Earth — corn, beans, squash, brassicas, and nearly any vegetable you plant. Prairie natives like coneflower and big bluestem are, unsurprisingly, right at home.
Drainage
Slow. Water enters clay reluctantly and leaves it the same way, so wet springs keep it cold and unworkable longer than lighter soils.
What thrives
Once established, heavy feeders prosper — brassicas, beans, corn, and many fruit trees ride clay’s nutrient supply and summer moisture reserve. Daylilies, roses, and prairie perennials handle it without complaint.
Drainage
Fast. The sand fraction opens the soil up, so water moves through the root zone quickly and the surface rarely stays soggy. The trade is that nutrients ride out with the water.
What thrives
Root crops love it — carrots, potatoes, radishes, and onions size up cleanly in ground they can push through. Melons, sweet potatoes, asparagus, and most herbs appreciate the warmth and the drainage.
Drainage
Variable by the shovelful. Sandy till drains freely; dense, compacted till (hardpan) can perch water above it after snowmelt and heavy rain.
What thrives
Apples, stone fruits, brambles, and the whole northern vegetable garden do well on till — much of New England and the upper Midwest farms it. Deep-rooted perennials work through the stony structure happily.
Soil data: USDA NRCS SSURGO · Soil types explained
Plants well-suited to North Dakota's climate, soils, and growing season — each links to its full growing profile.
For most of the year, no — what changes is which crops still fit the days remaining. Across North Dakota, cool-season planting typically opens about four weeks before the local last hard freeze — county medians put that freeze near Apr 24, with the middle half of counties between Apr 23 and Apr 26 (NOAA 1991–2020 climate normals). Tender transplants wait two to three weeks past it, and fall planting counts back from first freezes mostly between Oct 15 and Oct 19 — long-season crops need about 90 days of runway, quick greens only 30. Even past midsummer there is room for a true fall garden here, and garlic planted near the close carries the momentum into next year.
The plants North Dakota put its name on — cultural emblems, not growing recommendations.
Wild prairie rose
Rosa arkansana
Designated 1907.
Ulmus americana
Designated 1947. In our plant library — see its full growing profile.
Designated 2007. In our plant library — see its full growing profile.
Plants the USDA PLANTS Database documents as native and present in North Dakota — a real per-state range, not just a zone match. Presence is statewide, so a plant may still be uncommon in your specific county; your state’s Cooperative Extension or a native-plant society is the local authority.
US-native plants whose hardiness range overlaps North Dakota’s USDA zones 3a-4b but which USDA PLANTS doesn’t map to a single state range here. Zone overlap is a starting filter, not a range map.
What an experienced grower plans around here — each one has a move.
Extreme cold (-40F) and short growing season
Cold-proven varieties plus a high tunnel make North Dakota's short season dependable — northern growers' standard kit.
Persistent wind desiccates plants
A windbreak is the highest-return structure on the northern plains — even a snow fence changes what survives.
Low rainfall in western ND
Out west, drip irrigation and mulch decide the season — set the water system up front.
For cultivar selection, pest pressure, and planting-time guidance specific to North Dakota, the NDSU Extension is the authoritative local source.
Safe to Grow Here?What the federal record shows across North Dakota — and how to grow with it.
We checked the federal record across North Dakota — 20,590 documented sites across 6 of the 9 source types we track.
The most significant on record: 22 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
North Dakota carries one of the heavier federal records we track — and that's not a verdict on your yard. Proximity to a documented site is information, not a diagnosis: nothing here says any particular parcel is affected. It does earn one concrete step — before food beds go in the ground, a professional soil test tells you exactly what you're working with, and raised beds with clean imported soil grow well almost anywhere in the meantime.
Sources Checked
across North Dakota
Severity Distribution
across North Dakota
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around North Dakota, Nitrate runs higher than the national average — 15,844 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).
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
State averages sketch the shape. Your soil, sun exposure, drainage, and microclimate decide what actually takes. Pull a site-specific report for your exact parcel.
Enter your address. We read your soil, sun, drainage, and frost dates, then score 1,112 plants against the real conditions on your land.
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
North Dakota spans USDA hardiness zones 3a-4b, per the USDA Plant Hardiness Zone Map 2023. Zones reflect average annual extreme minimum temperatures from 1991–2020 weather data.
For most of the year, no — what changes is which crops still fit the days remaining. Across North Dakota, cool-season planting typically opens about four weeks before the local last hard freeze — county medians put that freeze near Apr 24, with the middle half of counties between Apr 23 and Apr 26 (NOAA 1991–2020 climate normals). Tender transplants wait two to three weeks past it, and fall planting counts back from first freezes mostly between Oct 15 and Oct 19 — long-season crops need about 90 days of runway, quick greens only 30. Even past midsummer there is room for a true fall garden here, and garlic planted near the close carries the momentum into next year.
Across North Dakota, the middle half of counties see their last hard freeze (28°F) between about Apr 23 and Apr 26, with a county median near Apr 24 (NOAA 1991–2020 climate normals). 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.
Measured between 28°F hard freezes, growing seasons across North Dakota's counties mostly run about 171 to 179 days, with a county median near 176 (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.
North Dakota's zones 3a-4b support a wide range — strong performers include Sunflower, Potato, Grape (Frontenac), American Elm, and Rhubarb. 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.
Officially, North Dakota spans USDA zones 3a-4b (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.
The federal record across North Dakota runs heavier than most — 20,590 documented sites — 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.
Start with three facts. North Dakota spans USDA zones 3a-4b, which sets what survives winter; last hard freezes range from about Apr 23 to Apr 26 across its counties (NOAA 1991–2020 climate normals); and 20,590 documented sites sit on the federal record here, so a soil test before food beds is the smart first step. From there, matching plants to your actual soil and sun is the fun part.
Everything on this page is a North Dakota 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.
Explore growing conditions by county — each has its own zone range and land area.
Explore growing conditions by city or town in North Dakota.
North Dakota shares its dominant growing region with these states — a useful comparison if you're weighing where a crop will behave the same way.
