Byron Center, 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.
The conditions favor cabbage, hazelnut, lavender, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Byron Center, 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 Byron Center 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 Byron Center — soil, climate, flood, and parcel records. How we handle your address.
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Byron Center — the short answer
Byron Center, Michigan: USDA zone 6a, about 184 days between hard freezes, across 3K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~184
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town 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 6a is Byron Center's average, not your lot's — a low corner or a tree line moves it. Against Byron Center's 184-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Byron Center
Each reading below is measured for Byron Center itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredByron Center runs about 184 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
MeasuredByron Center 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 Byron Center is in
Byron Center sits in the Southern Michigan/Northern Indiana Drift Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Byron Center's own centroid rather than borrowed from Kent County.
What Grows in Byron Center
Every plant below cleared Byron Center's own zone 6a and its 184-day season. Each card opens that plant's Michigan profile. How we score.
Is it too late to plant in Byron Center?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 27; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 24 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 25 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
Documented around Byron Center
Survey cells within 31 miles of Byron Center checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 57 miles off. What to watch for.
What's on the federal record near Byron Center
Closest first, within ~10 miles of Byron Center. Listing isn't leaking, and distance isn't exposure.
- Byron Center CDO (M41379)Underground Storage Tanks · 800 ft
- 05N12W21AA 01 HARKENASNitrate · 900 ft
- Byron Center Pub School BusUnderground Storage Tanks · 950 ft
- 05N12W 16DD 02 KENT CO (FAMILY R)Nitrate · 1000 ft
- 84th Street MarketUnderground Storage Tanks · 1100 ft
- Buist PropertiesUnderground Storage Tanks · 1200 ft
- Chemical BankUnderground Storage Tanks · 1200 ft
- 05N12W16DD 01 LOCKER PLNitrate · 1200 ft
- AUTOZONE INCBrownfields · 1300 ft
- Byron's One StopUnderground Storage Tanks · 1400 ft
- Bruces BPUnderground Storage Tanks · 1500 ft
- BRUCES BPBrownfields · 1600 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Byron Center'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 Byron Center.
Sources Checked
within ~10 miles of Byron Center
Severity Distribution
within ~10 miles of Byron Center
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Byron Center, Toxics Release Inventory runs higher than the national average — 147 sites within ~10 miles of Byron Center. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Byron Center
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 Byron Center average
Your land is one point inside Byron Center
Everything above resolves to Byron Center 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 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 Byron Center Average
Byron Center Average
- ●USDA Zones 6a, averaged across Byron Center
- ●One soil character for all of Byron Center
- ●Frost dates read at Byron Center's scale: Apr 24 to Oct 25
YOUR Parcel
- ✓Your exact zone, not Byron Center's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Byron Center
Pull a site-specific report for your exact address in Byron Center, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Byron Center averages can't show:
We read public map data around Byron Center — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Byron Center average
How we know this about Byron Center
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 Byron Center’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 Byron Center
When does frost risk typically end in Byron Center?
The last hard freeze (28°F) in Byron Center typically lands around Apr 24, 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 15.
When is the first frost in Byron Center?
The first hard freeze (28°F) in Byron Center typically arrives around Oct 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 11, so the watching starts about Sep 25 — about 184 days after the spring freeze cleared.
How long is the growing season in Byron Center?
Measured between 28°F hard freezes, Byron Center sees about 184 frost-free days — roughly Apr 24 through Oct 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 15 to Oct 11, about 149 days.
Is the soil safe to grow vegetables in Byron Center?
The federal record around Byron Center runs heavier than most — 1,820 documented sites, mostly Brownfields entries (852), the nearest Underground Storage Tanks record about 0.2 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Byron Center?
From about Sep 25 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 25 (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 25. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Byron Center's scale — its 6a band and its 184-day season. Your yard writes its own version of Byron Center'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 Byron Center’s own scale
7 of the readings below were taken at Byron Center's own scale — its own ~184-day season between 28°F freezes, the 3,254 acres it covers and 1,820 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Byron Center's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Byron Center's own 28°F hard-freeze dates, about Apr 24 and Oct 25 and the ~184-day span between themNOAA 1991–2020 Climate Normals
- 1,820 documented contamination sites on the federal record near Byron Center, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Byron Center's boundary and the 3,254 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~184-day seasonGrowable Ground crop-matching engine
- The ecoregion at Byron Center's own centroid, the Southern Michigan/Northern Indiana Drift PlainsUS EPA Level III Ecoregions
- Lanternfly survey cells around Byron Center 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 Byron Center's 3,254 acres read through its county's SSURGO summaryfrom Kent County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Kent 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 Kent County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Byron Center's 3,254 acreswhy one lot differs from the next →
- Which side of Byron Center you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,254 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 Byron Center-wide figureread your own land →
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