rhubarb (Rheum rhabarbarum), photographi

Can I Grow Rhubarb in North Dakota?

USDA Zones 3b-4b · Plant zone range 2-8

Yes — Strong Match

rhubarb (zones 2-8) covers every zone North Dakota contains (3b-4b), so hardiness is not what limits it anywhere in the state.

Rhubarb in North Dakota — the short answer

Rhubarb in North Dakota: hardy in zones 2–8, part sun, against a state median of ~157 frost-free days.

Plant zones
2-8
Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
North Dakota zones
3b-4b
USDA PHZM 2023
Frost window
Apr 30 - May 6 – Oct 4 - Oct 9
NOAA RCC ACIS 1991-2020, 28°F
Shortest county season
141 days
NOAA Regional Climate Centers ACIS, 1991-2020, county 28°F killing freeze
Days to maturity
730 days
Growable Ground Plant Database

Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — per-field provenance varies and is published with the dataset.

Score your parcel · free

Your yard isn't the whole zone.

North Dakota spans zones 3b-4b, but your yard has its own microclimate — slope, trees, and low spots shift frost and sun across a single parcel. Enter your address and we'll score rhubarb 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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North Dakota is not one climate

North Dakota’s winter-low ladder runs across 53 counties, from zone 3.5 in Bottineau County to zone 4.5 in Stutsman County. That is 10°F between the two counties’ average coldest night — the difference between rhubarb overwintering in the ground and coming under cover.

3.5 zonesBottineau County4.5 zonesStutsman County

The middle half of 53 counties runs 44 zones, with a median of 4 zones — a 1-zone span end to end.

Measured across 53 North Dakota counties. USDA PHZM 2023, per county. Quartiles are order statistics — every figure shown is a value a real county recorded, not an interpolation. Your own site sits somewhere inside this range; a parcel report resolves where.

Where in North Dakota Fits Best

Even within North Dakota's zones 3b-4b, county microclimates differ enough to change what thrives. These counties carry the closest zone match for rhubarb (USDA PHZM 2023):

Zone Comparison

Rhubarb Needs

  • USDA Zones: 2-8
  • Frost-Free Days: 60+
  • Sun: Part Sun
  • Mature size: 3 ft tall
  • Picking window: ~60 days of harvest
  • Drought tolerance: Medium

North Dakota Has

  • USDA Zones: 3b-4b
  • Last Hard Freeze (28°F): Apr 30 - May 6
  • First Hard Freeze (28°F): Oct 4 - Oct 9
  • Annual Rainfall: 14-22 inches
  • Common Soils: Prairie loam, Clay (Red River Valley), Sandy loam

Plant Zone Range (zones 2-8)

2a
8b
3a (Cold)13b (Hot)

Preferred Soil pH

3.5 (Acidic)7.0 (Neutral)9.0 (Alkaline)
Highlighted range: pH 5.37.8

Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS, and university Extension sources — per-field provenance varies and is published with the dataset. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.

When to Plant Rhubarb in North Dakota

The frost window

Across North Dakota, the last spring hard freeze (28°F) clears between Apr 30 and May 6, and the first fall hard freeze lands between Oct 4 and Oct 9 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 151-day window you can count on — up to 162 days on a mild site in a kind year. That marks the hard freeze, not the last light frost, so tender transplants usually wait another 2-3 weeks.

Winter standing

North Dakota runs as cold as USDA zone 3, and no sourced winter-hardiness floor is on record for rhubarb, so this page does not state whether it overwinters here — and gives no fall establishment date on the strength of a guess. Whether rhubarb is a permanent planting or a replant-every-spring crop for you turns on your own zone within North Dakota; check its hardiness range against that before treating it as long-lived ground.

Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: Growable Ground Plant Database — frost-free days from FAO ECOCROP, days to harvest from university Extension production guides, and growing-degree-day and chill-hour minimums that are compilation estimates rather than published figures. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.

Growing Season Fit

The zone check says rhubarb survives winter here. Whether the season is long enough — and warm enough — is a different question.

Frost-free days

Rhubarb wants 60+ frost-free days; a typical North Dakota site sees ~157 (NOAA Regional Climate Centers ACIS, 1991-2020). That leaves comfortable headroom for succession planting.

Growing degree days

Rhubarb needs ~800 GDD (base 50°F) to ripen. The state median runs ~1913 GDD (from PRISM 1991-2020 climate normals), so North Dakota's typical season clears that easily.

GDD and chill-hour figures are computed from PRISM 1991-2020 monthly climate normals; frost-free days from NOAA Regional Climate Centers ACIS, 1991-2020. Each is the state median across its counties (P25/P75 span the within-state spread). Hardiness-zone range is USDA PHZM 2023.

Soil + Drainage Fit

Rhubarb likes near-neutral soil (pH 5.3-7.8). That's the common-ground band across North Dakota's prairie loam and clay (red river valley) — a soil test confirms it for your site. It will grow across that whole span, but it does best between pH 6 and 7 — worth knowing before you decide whether a North Dakota soil test result is a problem or just a number. Drainage matters: this plant wants well (dry spells). If your North Dakota site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.

Plant pH requirements: FAO ECOCROP and USDA PLANTS, with the remaining rows from other published sources or Growable Ground compilation. Drainage: FAO ECOCROP, with the remaining rows from other published sources or Growable Ground compilation. North Dakota soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.

Before you plant rhubarb for food

Anything you grow to eat takes up what is in the ground it grows in, so what is on record near you is worth knowing before rhubarb goes in. What follows is North Dakota’s documented federal record at state scale — a screening signal, not a soil test, and not a statement about any one lot.

Safe to Grow Here?

What the federal record shows across North Dakota — and how to grow with it.

Federal record: High

We checked the federal record across North Dakota20,590 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.

Severity Distribution

across North Dakota

High37Moderate16,959Low3,594

Highest-Severity Sites

Arsenic Trioxide Site
Superfund · Superfund NPL
Barnes Rural Water District
PFAS Sampling · PFAS Detected
Beach City of
PFAS Sampling · PFAS Detected
Belcourt-Turtle Mtn Rural Water System
PFAS Sampling · PFAS Detected
Beulah City of
PFAS Sampling · PFAS Detected

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 across North Dakota. 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, USGS1.8M documented sites tracked nationwide across 9 federal source types.

What Else to Consider for Rhubarb in North Dakota

Zone compatibility tells you about winter cold survival — but North Dakota growers also need to think about:

Extreme cold (-40F) and short growing season

Persistent wind desiccates plants

Low rainfall in western ND

What to actually do about these — and the constraints that apply to every North Dakota grower, not just rhubarb — is covered on the North Dakota growing guide.

Timing shifts within North Dakota

Rhubarb needs about 60 days of frost-free season to complete its cycle. Even Bottineau County — North Dakota’s shortest season at 141 frost-free days — clears that by 81 days, so season length isn’t the constraint anywhere in North Dakota. What varies is your own parcel.

County last-freeze dates and frost-free day counts: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F freeze (earlier than the folk 32°F "last frost"). Rhubarb's 60-day requirement: USDA PLANTS / Growable Ground plant database (minimum frost-free days). A parcel report resolves your address's own frost dates.

North Dakota Cooperative Extension

For North Dakota-specific cultivar recommendations, planting calendars, and pest pressure for rhubarb, the canonical source is NDSU Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.

Is Rhubarb native to North Dakota?

No — the USDA PLANTS Database lists Rhubarb as introduced rather than native in the Lower 48, so it is not part of North Dakota's native flora. It grows here as a garden plant; pairing it with a few North Dakota natives keeps local pollinators fed too.

Looking for plants that belong here? The North Dakota growing guide lists USDA-documented natives for the state.

Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.

Common Questions About Growing Rhubarb in North Dakota

When can I plant Rhubarb in North Dakota?

North Dakota's last spring hard freeze (28°F) clears between Apr 30 and May 6, and the first fall hard freeze lands between Oct 4 and Oct 9 (NOAA Regional Climate Centers ACIS, 1991-2020). No sourced winter-hardiness floor is on record for Rhubarb, so this page does not state whether it overwinters in North Dakota and publishes no fall establishment date for it — check its hardiness range against your own zone before treating it as a permanent planting.

What hardiness zone is Rhubarb grown in across North Dakota?

North Dakota spans USDA hardiness zones 3b-4b (USDA ARS PHZM 2023). Rhubarb carries a range of zones 2-8, so the overlap zones are where outdoor growing is most reliable.

How many frost-free days does a typical North Dakota site have?

A typical North Dakota site sees ~157 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). Rhubarb needs 60+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date.

Is Rhubarb native to North Dakota?

No — the USDA PLANTS Database lists Rhubarb as introduced rather than native in the Lower 48, so it is not part of North Dakota's native flora. It grows here as a garden plant; pairing it with a few North Dakota natives keeps local pollinators fed too.

How should I amend the soil for Rhubarb in North Dakota?

Rhubarb prefers pH 5.3-7.8 and well (dry spells) drainage (FAO ECOCROP). That sits in the common-ground band across North Dakota soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.

Will Rhubarb actually grow on my specific land in North Dakota?

State-level zone + climate data is a sketch. A Growable Ground parcel report scores rhubarb against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.

Free Report

Check your specific parcel in North Dakota

State-level data is a sketch. Your Growable Ground report scores rhubarb against your parcel's exact soil, sun, drainage, and frost data — not zone averages.

Three things about your lot that North Dakota rhubarb averages can't show:

Your soil pHYour frost-free days — North Dakota averages 157Your sun & shade

We read public map data around North Dakota — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources read at your address, not the North Dakota rhubarb average

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