What Grows in Nowthen, Minnesota

USDA Zones 4a-5b · 22K acres

Nowthen, Minnesota, sits in USDA hardiness zones 4a-5b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.

The conditions favor honeycrisp apple, wild rice, tomato, and red pine, among others — though every individual site edits that list with its own soil, sun, and drainage.

Score your parcel · free

Even in Nowthen, 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 Nowthen lot. 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

4a-5b

Last Hard Freeze (28°F)

Apr 11

Town normal — light frosts run a few weeks later

First Hard Freeze (28°F)

Nov 1

Town normal — light frosts arrive a few weeks earlier

City Area

22K acres

Hardiness Zone Range

4a
5b
3a (Cold)13b (Hot)

Zone maps are averages across Nowthen. Your yard's slope, trees, and frost pockets shift what actually grows — see your land's exact reading.

Soil varies lot by lot — soil types explained.

Is it too late to plant in Nowthen?

Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 14; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 11 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 1 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.

Growing Challenges in Minnesota

What an experienced grower plans around here — each one has a move.

Extreme cold (zone 3a: -40F) limits many species

Plant to zone 3 realities and the garden thrives — the hardy-plant palette here is deeper than most catalogs suggest.

Short growing season (100-140 frost-free days)

Start transplants indoors and add a cold frame — the standard Minnesota moves that stretch a short season into a full one.

Heavy clay soils in the Red River Valley

Valley clay grows world-class crops once drainage is handled — raised beds do it instantly, compost does it permanently.

For cultivar selection, pest pressure, and planting-time guidance specific to Minnesota, the University of Minnesota Extension is the authoritative local source.

Environmental Intelligence

Understanding what's nearby helps you make informed decisions about where and how to grow.

Total Sites

1,043

within ~10 miles of Nowthen

Risk Level

Elevated

Highest-severity

2 Superfund sites

Severity Distribution

within ~10 miles of Nowthen

High4Moderate361Low678

Highest-Severity Sites

Anoka
PFAS Sampling · PFAS Detected
Oak Grove Sanitary Landfill
Superfund · Superfund NPL
Ramsey
PFAS Sampling · PFAS Detected
031n25w01cbbbac01 0000201191
Nitrate Monitoring · Well
031n25w01cbbbac01 0000201191
Nitrate Monitoring · Well

A note from Gnorman

What an experienced grower watches for around here

In and around Nowthen, two things run higher than the national average — Brownfields (560 sites) and Nitrate (286 sites). That's not a problem with your land — it's information about it.

Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.

Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.

Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.

Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).

Free Report

Check your specific parcel in Nowthen

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:

Your soil pHYour frost-free daysYour sun & shade

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

Nowthen Average

  • USDA Zones 4a-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

Free Report

Read your specific parcel in Nowthen

Pull a site-specific report for your exact address in Nowthen, Minnesota — soil, sun, drainage, frost risk, and scored plant recommendations.

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

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 Nowthen, Minnesota

  • USDA Hardiness Zones: 4a-5b (USDA PHZM 2023)
  • Last Hard Freeze (28°F): Apr 11 (town normal, NOAA 1991–2020 Climate Normals — light frosts can follow for a few weeks)
  • First Hard Freeze (28°F): Nov 1 (town normal, NOAA 1991–2020 Climate Normals — light frosts can arrive a few weeks earlier)
  • Days Between Hard Freezes: ~204 (town normal, NOAA 1991–2020 Climate Normals)
  • Land Area: 22K acres (US Census TIGER 2025)

Zone data: USDA ARS Plant Hardiness Zone Map 2023. Climate data: NOAA NCEI. Boundaries: US Census TIGER/Line 2025.

Frequently Asked Questions

What hardiness zone is Nowthen, Minnesota?

Nowthen sits in USDA hardiness zones 4a-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 Nowthen?

Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 14; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 11 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 1 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.

When does frost risk typically end in Nowthen?

The last hard freeze (28°F) in Nowthen typically lands around Apr 11, 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.

When is the first frost in Nowthen?

The first hard freeze (28°F) in Nowthen typically arrives around Nov 1, per NOAA 1991–2020 climate normals — the point most tender summer crops finish. Lighter frosts usually reach a couple of weeks earlier, so watch the forecast from late summer on and harvest or cover tender plants before the first cold night.

What vegetables grow in Nowthen?

Nowthen's zones 4a-5b support a wide range — strong performers include Honeycrisp Apple, Wild Rice, Tomato, and Red Pine. 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 Nowthen, really?

Officially, Nowthen sits in USDA zones 4a-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 Nowthen?

The federal record around Nowthen is a meaningful one — 1,043 documented sites — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.

How do I protect my plants from frost in Nowthen?

As the season closes around the first 28°F hard freeze near Nov 1 (NOAA 1991–2020 climate normals), a few moves buy time: cover tender plants with floating row cover or an old sheet on still, clear nights, water the soil the afternoon before a freeze so it holds warmth overnight, and harvest frost-tender crops like tomatoes, peppers, and basil before the first hard night. Hardy greens and root crops shrug off light frost and often sweeten after it, so leave them in.

Everything on this page is a Nowthen 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.