Benton Harbor, Michigan, sits in USDA hardiness zone 6b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Well-matched crops include cabbage, hazelnut, lavender, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Benton Harbor, 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 Benton Harbor 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 Benton Harbor — soil, climate, flood, and parcel records. How we handle your address.
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Benton Harbor — the short answer
Benton Harbor, Michigan: USDA zone 6b, about 210 days between hard freezes, across 3K acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~210
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 3K 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 6b is Benton Harbor's average, not your lot's — a low corner or a tree line moves it. Against Benton Harbor's 210-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Benton Harbor
Each reading below is measured for Benton Harbor itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBenton Harbor runs about 210 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredBenton Harbor sits in USDA hardiness zone 6b.
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 Benton Harbor is in
Benton Harbor sits in the Southern Michigan/Northern Indiana Drift Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Benton Harbor's own centroid rather than borrowed from Berrien County.
What Grows in Benton Harbor
Every plant below cleared Benton Harbor's own zone 6b and its 210-day season. Each card opens that plant's Michigan profile. How we score.
Is it too late to plant in Benton Harbor?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 14 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 10 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around Benton Harbor
Survey cells within 31 miles of Benton Harbor checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 36 miles off. What to watch for.
What's on the federal record near Benton Harbor
Closest first, within ~10 miles of Benton Harbor. Listing isn't leaking, and distance isn't exposure.
- Formerly- United Insurance CoUnderground Storage Tanks · 1100 ft
- CARQUEST OF BENTON HARBORBrownfields · 1600 ft
- 355 East Main StreetUnderground Storage Tanks · 1600 ft
- FAMILY DOLLAR STORESBrownfields · 1600 ft
- Former Kwik WayUnderground Storage Tanks · 1600 ft
- Twin Cities Area Trans AuthorityUnderground Storage Tanks · 1600 ft
- Howards 76 StationUnderground Storage Tanks · 1600 ft
- APC STORES INCBrownfields · 1600 ft
- Ron GaynorUnderground Storage Tanks · 1700 ft
- Sgndj Inc (Land contract Holder)Underground Storage Tanks · 1700 ft
- Benton Harbor Police DeptUnderground Storage Tanks · 1800 ft
- ATLANTIC AUTOMOTIVE COMPONENTSBrownfields · 1800 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Benton Harbor'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 Benton Harbor.
Sources Checked
within ~10 miles of Benton Harbor
Severity Distribution
within ~10 miles of Benton Harbor
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Benton Harbor, two things run higher than the national average within ~10 miles of Benton Harbor — Superfund (13 sites) and Toxics Release Inventory (47 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Benton Harbor
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 Benton Harbor average
Your land is one point inside Benton Harbor
Everything above resolves to Benton Harbor as a whole — one PHZM band and one 28°F frost record, read across 3K 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 Benton Harbor Average
Benton Harbor Average
- ●USDA Zones 6b, averaged across Benton Harbor
- ●One soil character for all of Benton Harbor
- ●Frost dates read at Benton Harbor's scale: Apr 14 to Nov 10
YOUR Parcel
- ✓Your exact zone, not Benton Harbor's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Benton Harbor
Pull a site-specific report for your exact address in Benton Harbor, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Benton Harbor averages can't show:
We read public map data around Benton Harbor — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Benton Harbor average
How we know this about Benton Harbor
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 Benton Harbor’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 Benton Harbor
When does frost risk typically end in Benton Harbor?
The last hard freeze (28°F) in Benton Harbor typically lands around Apr 14, 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 5.
When is the first frost in Benton Harbor?
The first hard freeze (28°F) in Benton Harbor typically arrives around Nov 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 27, so the watching starts about Oct 11 — about 210 days after the spring freeze cleared.
How long is the growing season in Benton Harbor?
Measured between 28°F hard freezes, Benton Harbor sees about 210 frost-free days — roughly Apr 14 through Nov 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 5 to Oct 27, about 175 days.
Is the soil safe to grow vegetables in Benton Harbor?
The federal record around Benton Harbor is a meaningful one — 623 documented sites, mostly Underground Storage Tanks entries (314), the nearest Underground Storage Tanks record about 0.2 miles out — 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 Benton Harbor?
From about Oct 11 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 Nov 10 (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 Nov 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Benton Harbor's scale — its 6b band and its 210-day season. Your yard writes its own version of Benton Harbor'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 Benton Harbor’s own scale
7 of the readings below were taken at Benton Harbor's own scale — its own ~210-day season between 28°F freezes, the 2,808 acres it covers and 623 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Benton Harbor's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Benton Harbor's own 28°F hard-freeze dates, about Apr 14 and Nov 10 and the ~210-day span between themNOAA 1991–2020 Climate Normals
- 623 documented contamination sites on the federal record near Benton Harbor, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Benton Harbor's boundary and the 2,808 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~210-day seasonGrowable Ground crop-matching engine
- The ecoregion at Benton Harbor's own centroid, the Southern Michigan/Northern Indiana Drift PlainsUS EPA Level III Ecoregions
- Lanternfly survey cells around Benton Harbor checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Benton Harbor's 2,808 acres read through its county's SSURGO summaryfrom Berrien County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Berrien County
- The growing challenges every Michigan grower plans around — written at state scale, so they stay on the state guidefrom Michigan
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Berrien County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Benton Harbor's 2,808 acreswhy one lot differs from the next →
- Which side of Benton Harbor you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,808 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 miles 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 Benton Harbor-wide figureread your own land →