broccoli (Brassica oleracea var. italica), photographi

Can I Grow Broccoli in Nebraska?

USDA Zones 4b-6a · Plant zone range 2-11

Yes — Strong Match

broccoli is grown in zones 2-11, which covers every zone Nebraska contains (4b-6a). Whether the season is long enough is the question that remains.

Broccoli in Nebraska — the short answer

Broccoli in Nebraska: grown in zones 2–11, part sun.

Plant zones
2-11
Not verified
Nebraska zones
4b-6a
USDA PHZM 2023
Frost window
Apr 12 - Apr 26 – Oct 15 - Oct 21
NOAA RCC ACIS 1991-2020, 28°F
Shortest county season
134 days
NOAA Regional Climate Centers ACIS, 1991-2020, county 28°F killing freeze
Days to maturity
70 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 to start

Your yard isn't the whole zone.

Nebraska spans zones 4b-6a, but your yard sits in exactly one — and slope, tree cover, and cold-air pockets nudge it further. Enter your address and we'll score broccoli against your parcel's actual hardiness, soil, and sun.

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

No card required · your parcel report in seconds — read in full free for your first 14 days

Nebraska is not one climate

A single Nebraska answer averages 93 counties whose growing seasons are 73 days apart — from 134 frost-free days in Sioux County to 207 in Sarpy County. Which end of that your land sits nearer changes what broccoli can finish before the first hard freeze.

134 daysSioux County207 daysSarpy County

The middle half of 93 counties runs 173–191 days, with a median of 181 days — a 73-day span end to end.

Measured across 93 Nebraska counties. NOAA Regional Climate Centers ACIS, 1991-2020, county 28°F killing freeze. 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 Nebraska Fits Best

Even within Nebraska's zones 4b-6a, county microclimates differ enough to change what thrives. These counties carry the closest zone match for broccoli (USDA PHZM 2023):

Zone Comparison

Broccoli Needs

  • USDA Zones: 2-11
  • Sun: Part Sun
  • Mature size: 2.5 ft tallWe haven't confirmed this against a published source yet.
  • Picking window: ~14 days of harvestWe haven't confirmed this against a published source yet.
  • Drought tolerance: LowWe haven't confirmed this against a published source yet.

Nebraska Has

  • USDA Zones: 4b-6a
  • Last Hard Freeze (28°F): Apr 12 - Apr 26
  • First Hard Freeze (28°F): Oct 15 - Oct 21
  • Annual Rainfall: 15-34 inches
  • Common Soils: Loess, Sandy loam (Sandhills), Silt loam

Plant Zone Range (zones 2-11)

2a
11b
3a (Cold)13b (Hot)

Preferred Soil pH

3.5 (Acidic)7.0 (Neutral)9.0 (Alkaline)
Highlighted range: pH 5.5 – 8.5

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 Broccoli in Nebraska

The frost window

Across Nebraska, the last spring hard freeze (28°F) clears between Apr 12 and Apr 26, and the first fall hard freeze lands between Oct 15 and Oct 21 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 172-day window you can count on — up to 192 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.

When to start the seed

Those dates are when broccoli goes out, not when it starts. It is sown under cover about 5 weeks ahead, so counting back from Nebraska's late-side last freeze of Apr 26 is what fixes your sowing date — and a yard that clears frost earlier than the state's late date starts earlier still.

Winter standing

Nebraska runs as cold as USDA zone 4, and no sourced winter-hardiness floor is on record for broccoli, so this page does not state whether it overwinters here — and gives no fall establishment date on the strength of a guess. Whether broccoli is a permanent planting or a replant-every-spring crop for you turns on your own zone within Nebraska; 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

Broccoli is grown in zones 2–11, which covers every zone Nebraska contains (4b-6a). We have no sourced winter-survival figure for broccoli, so this page does not say whether it overwinters here. Nebraska's typical season runs ~181 frost-free days against the ~60 broccoli needs.

Growing degree days

Broccoli needs ~1500 GDD (base 50°F) to ripen. We haven't confirmed this against a published source yet. The state median runs ~2648 GDD (from PRISM 1991-2020 climate normals), so Nebraska'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

Broccoli tolerates a wide pH range (pH 5.5-8.5) — 3 units, acid ground through alkaline — so soil acidity is rarely what limits it in Nebraska. A soil test is still worth having, but for what else it tells you about this site, not to clear this plant. It will grow across that whole span, but it does best between pH 6 and 7 — worth knowing before you decide whether a Nebraska soil test result is a problem or just a number. Drainage matters: this plant wants well (dry spells). If your Nebraska site is heavier clay or sits in a low spot, a raised bed lifts the roots above wet ground, or work in compost. Preferred pH and drainage need: We haven't confirmed this against a published source yet.

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. Nebraska soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.

Before you plant broccoli 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 broccoli goes in. What follows is Nebraska’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 Nebraska — and how to grow with it.

Federal record: High

We checked the federal record across Nebraska — 4,007 documented sites across 7 of the 8 source types we track.

The most significant on record: 162 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.

Nebraska 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 of imported, lab-tested soil grow well almost anywhere in the meantime.

Know before you grow — the guide

Sources Checked

across Nebraska

Severity Distribution

across Nebraska

High67Moderate2,627Low1,313

Highest-Severity Sites

Superfund · Superfund NPL
PFAS Sampling · PFAS Detected
PFAS Sampling · PFAS Detected
PFAS Sampling · PFAS Detected
PFAS Sampling · PFAS Detected

A note from Gnorman

What an experienced grower watches for around here

In and around Nebraska, two things run higher than the national average across Nebraska — CAFO (700 sites) and Superfund (162 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.

CAFO: CAFOs pose a different contamination profile than chemical sources.

Superfund: Superfund sites represent the most severe contamination in the federal system.

Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.

Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).

Sources: EPA, USGS — 950K documented sites tracked nationwide across 8 federal source types.

What Else to Consider for Broccoli in Nebraska

The zone range tells you where broccoli is grown — but Nebraska growers also need to think about:

Low western rainfall (15 inches) requires irrigation

Extreme wind exposure on open plains

Hail damage during severe storm season

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

Where in Nebraska Broccoli Is Zone-Hardy

Broccoli is rated for USDA zones 2–11. Every one of Nebraska’s 93 counties sits inside that band — from Sioux County at zone 4b to Thayer County at zone 6a — so winter cold is not what decides this plant anywhere in the state. What is left to vary is your own parcel: slope, shelter and cold-air drainage routinely move a site half a zone either way from the county figure.

Across those 93 counties Nebraska’s winter-low ladder runs from zone 4b in Sioux County to zone 6a in Thayer County — 1.5 USDA zones of spread, which is 15°F between the two counties’ average coldest night of the year. That is why a statewide hardiness answer is where you start and not where you finish.

The planting window moves with it. Sioux County holds its last hard freeze (28°F) until about May 14, while Douglas County is clear by Apr 5 — 39 days apart. Set broccoli out on your county’s date, not the state’s.

County hardiness zones: USDA Plant Hardiness Zone Map (PHZM) 2023, per county. County last-freeze dates: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F killing freeze — earlier than the folk 32°F "last frost". Broccoli’s zone 2–11 band: Not verified. A parcel report resolves your address’s own zone and frost dates rather than its county’s.

Pollinator + Wildlife Value

Broccoli draws honeybees and native bees (moderate value). Planting it near vegetable beds can lift fruit set on neighboring crops. Outdoors, broccoli can only work that bloom inside Nebraska's frost window — roughly 181 days, opening after the last 28°F freeze (Apr 12 - Apr 26) and closing at the first (Oct 15 - Oct 21), per NOAA Regional Climate Centers ACIS, 1991-2020. Pollinator value: We haven't confirmed this against a published source yet.

Nebraska Cooperative Extension

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

Is Broccoli native to Nebraska?

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

Looking for plants that belong here? The Nebraska growing guide lists plants that USDA PLANTS records growing in Nebraska and that Kew and NatureServe Explorer both list in its native range, leaving out any that NatureServe flags as exotic there or that our audit holds.

State records: USDA PLANTS Database state-distribution data (presence, not state-level nativity), accessed 2026-10-19.

Common Questions About Growing Broccoli in Nebraska

When can I plant Broccoli in Nebraska?

Nebraska's last spring hard freeze (28°F) clears between Apr 12 and Apr 26, and the first fall hard freeze lands between Oct 15 and Oct 21 (NOAA Regional Climate Centers ACIS, 1991-2020). No sourced winter-hardiness floor is on record for Broccoli, so this page does not state whether it overwinters in Nebraska 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 Broccoli grown in across Nebraska?

Nebraska spans USDA hardiness zones 4b-6a (USDA ARS PHZM 2023). Broccoli carries a range of zones 2-11, so the overlap zones are where outdoor growing is most reliable.

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

A typical Nebraska site sees ~181 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). Broccoli 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 Broccoli native to Nebraska?

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

How should I amend the soil for Broccoli in Nebraska?

Broccoli tolerates pH 5.5-8.5 and well (dry spells) drainage. We haven't confirmed this against a published source yet. That is a 3-unit span, acid ground through alkaline, so pH is rarely what limits this plant on a Nebraska site — amend for drainage and organic matter first.

Will Broccoli actually grow on my specific land in Nebraska?

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

Free to start

Check your specific parcel in Nebraska

State-level data is a sketch. Your Growable Ground report scores broccoli against your land's mapped soil, modelled sun, drainage, and frost data — not zone averages.

Three things about your lot that Nebraska broccoli averages can't show:

Your soil pHYour frost-free days — Nebraska averages 181Your sun & shade

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

25+ data sources read at your address, not the Nebraska broccoli average

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