Bridgeport, Michigan, sits in USDA hardiness zone 6a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Crops well matched to these conditions include cabbage, hazelnut, lavender, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Bridgeport, 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 Bridgeport 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 Bridgeport — soil, climate, flood, and parcel records. How we handle your address.
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Bridgeport — the short answer
Bridgeport, Michigan: USDA zone 6a, about 194 days between hard freezes, across 5K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 17
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~194
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 5K 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 6a is Bridgeport's average, not your lot's — a low corner or a tree line moves it. Against Bridgeport's 194-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Bridgeport
Each reading below is measured for Bridgeport itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBridgeport runs about 194 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredBridgeport sits in USDA hardiness zone 6a.
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 Bridgeport is in
Bridgeport sits in the Huron/Erie Lake Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Bridgeport's own centroid rather than borrowed from Saginaw County.
What Grows in Bridgeport
Every plant below cleared Bridgeport's own zone 6a and its 194-day season. Each card opens that plant's Michigan profile. How we score.
Is it too late to plant in Bridgeport?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Mar 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 17 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 28 — 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.
Documented around Bridgeport
Survey cells within 31 miles of Bridgeport checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 60 miles off. What to watch for.
What's on the federal record near Bridgeport
Closest first, within ~10 miles of Bridgeport. Listing isn't leaking, and distance isn't exposure.
- MICHIGAN BELL TELEPHONEBrownfields · 1900 ft
- VLASIC FOODS INCBrownfields · 1900 ft
- VLASIC FOODS INCToxics Release Inventory · 1900 ft
- Buryl Hill, IncUnderground Storage Tanks · 2000 ft
- COLWELL EQUIPMENT CO INCBrownfields · 2000 ft
- Mcnally-Nimergood CoUnderground Storage Tanks · 2200 ft
- Buggy Bath & Lube IncUnderground Storage Tanks · 2200 ft
- CLOCKWORK COLLISIONBrownfields · 2200 ft
- SHEAR TOOL INCBrownfields · 2300 ft
- Corporate Maintenance IncUnderground Storage Tanks · 2500 ft
- CORPORATE MAINTENANCE INCBrownfields · 2500 ft
- Sks Heat Treating Co IncUnderground Storage Tanks · 2600 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Bridgeport'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 Bridgeport.
Total Sites
976
within ~10 miles of Bridgeport
Risk Level
Elevated
Highest-severity
5 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Bridgeport
Severity Distribution
within ~10 miles of Bridgeport
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •TRI facilities report what they release. Check the wind — downwind beds catch more of it.
Check your specific parcel in Bridgeport
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 Bridgeport average
Your land is one point inside Bridgeport
Everything above resolves to Bridgeport as a whole — one PHZM band and one 28°F frost record, read across 5K 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 town 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 Bridgeport Average
Bridgeport Average
- ●USDA Zones 6a, averaged across Bridgeport
- ●One soil character for all of Bridgeport
- ●Frost dates read at Bridgeport's scale: Apr 17 to Oct 28
YOUR Parcel
- ✓Your exact zone, not Bridgeport's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Bridgeport
Pull a site-specific report for your exact address in Bridgeport, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Bridgeport averages can't show:
We read public map data around Bridgeport — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Bridgeport average
How we know this about Bridgeport
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Bridgeport’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 town grain anywhere on this page — there is no town-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 Bridgeport
When does frost risk typically end in Bridgeport?
The last hard freeze (28°F) in Bridgeport typically lands around Apr 17, 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 8.
When is the first frost in Bridgeport?
The first hard freeze (28°F) in Bridgeport typically arrives around Oct 28, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 14, so the watching starts about Sep 28 — about 194 days after the spring freeze cleared.
How long is the growing season in Bridgeport?
Measured between 28°F hard freezes, Bridgeport sees about 194 frost-free days — roughly Apr 17 through Oct 28, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 8 to Oct 14, about 159 days.
Is the soil safe to grow vegetables in Bridgeport?
The federal record around Bridgeport is a meaningful one — 976 documented sites, mostly Underground Storage Tanks entries (482), the nearest Brownfields record about 0.4 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 Bridgeport?
From about Sep 28 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 Oct 28 (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 Oct 28. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Bridgeport's scale — its 6a band and its 194-day season. Your yard writes its own version of Bridgeport'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 Bridgeport’s own scale
7 of the readings below were taken at Bridgeport's own scale — its own ~194-day season between 28°F freezes, the 5,377 acres it covers and 976 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Bridgeport's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Bridgeport's own 28°F hard-freeze dates, about Apr 17 and Oct 28 and the ~194-day span between themNOAA 1991–2020 Climate Normals
- 976 documented contamination sites on the federal record near Bridgeport, the closest Brownfields record about 0.4 miles out from the town centreFederal environmental registers
- Bridgeport's boundary and the 5,377 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~194-day seasonGrowable Ground crop-matching engine
- The ecoregion at Bridgeport's own centroid, the Huron/Erie Lake PlainsUS EPA Level III Ecoregions
- Lanternfly survey cells around Bridgeport 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 Bridgeport's 5,377 acres read through its county's SSURGO summaryfrom Saginaw County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Saginaw 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 Saginaw County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Bridgeport's 5,377 acreswhy one lot differs from the next →
- Which side of Bridgeport you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,377 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.4 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 Bridgeport-wide figureread your own land →
More in Michigan
Wider growing context
What grows across MichiganBridgeport sits outside our named growing regions, so Michigan as a whole is its closest context here.
Nearby growing guides