Barton Hills, Michigan, sits in USDA hardiness zone 6a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
A short list that earns its place here — cabbage, hazelnut, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Barton Hills, 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 Barton Hills 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 Barton Hills — soil, climate, flood, and parcel records. How we handle your address.
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Barton Hills — the short answer
Barton Hills, Michigan: USDA zone 6a, about 187 days between hard freezes, across 520 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~187
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 520 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 Barton Hills's average, not your lot's — a low corner or a tree line moves it. Against Barton Hills's 187-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Barton Hills
Each reading below is measured for Barton Hills itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredBarton Hills runs about 187 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
MeasuredBarton Hills 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 Barton Hills is in
Barton Hills sits in the Eastern Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Barton Hills's own centroid rather than borrowed from Washtenaw County.
What Grows in Barton Hills
Every plant below cleared Barton Hills's own zone 6a and its 187-day season. Each card opens that plant's Michigan profile. How we score.






























Is it too late to plant in Barton Hills?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 22; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 19 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 23 — 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 Barton Hills
Spotted lanternfly documented 30 miles from Barton Hills, first recorded 2020. What to watch for.
What's on the federal record near Barton Hills
Closest first, within ~10 miles of Barton Hills. Listing isn't leaking, and distance isn't exposure.
- Barton Hills Country ClubUnderground Storage Tanks · 0.6 mi
- Barton Hills VillageUnderground Storage Tanks · 0.7 mi
- 02S06E18ADCD01Nitrate · 0.7 mi
- MI DEPT/TRANSPORTATION - BRIDGE (SO5-81105)Brownfields · 0.9 mi
- Cf Braun Company, IncUnderground Storage Tanks · 1.0 mi
- Barton Pumping StationUnderground Storage Tanks · 1.1 mi
- Harry DanielsUnderground Storage Tanks · 1.1 mi
- MI DEPT/TRANSPORTATION - BRIDGE (S06, S09-81105)Brownfields · 1.3 mi
- Rsi Wholesale Of Ann ArborUnderground Storage Tanks · 1.3 mi
- RIVERVIEW HOSPITAL OF ANN ARBORBrownfields · 1.3 mi
- CUSHING-MALLOY INCBrownfields · 1.4 mi
- CITY OF ANN ARBOR - WATER TREATMENT PLANTBrownfields · 1.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Barton Hills'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 Barton Hills.
Sources Checked
within ~10 miles of Barton Hills
Severity Distribution
within ~10 miles of Barton Hills
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Barton Hills, Brownfields runs higher than the national average — 749 sites within ~10 miles of Barton Hills. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Barton Hills
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 Barton Hills average
Your land is one point inside Barton Hills
Everything above resolves to Barton Hills as a whole — one PHZM band and one 28°F frost record, read across 520 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 Barton Hills Average
Barton Hills Average
- ●USDA Zones 6a, averaged across Barton Hills
- ●One soil character for all of Barton Hills
- ●Frost dates read at Barton Hills's scale: Apr 19 to Oct 23
YOUR Parcel
- ✓Your exact zone, not Barton Hills's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Barton Hills
Pull a site-specific report for your exact address in Barton Hills, Michigan — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Barton Hills averages can't show:
We read public map data around Barton Hills — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Barton Hills average
How we know this about Barton Hills
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 Barton Hills’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 Barton Hills
When does frost risk typically end in Barton Hills?
The last hard freeze (28°F) in Barton Hills typically lands around Apr 19, 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 10.
When is the first frost in Barton Hills?
The first hard freeze (28°F) in Barton Hills typically arrives around Oct 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 9, so the watching starts about Sep 23 — about 187 days after the spring freeze cleared.
How long is the growing season in Barton Hills?
Measured between 28°F hard freezes, Barton Hills sees about 187 frost-free days — roughly Apr 19 through Oct 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 10 to Oct 9, about 152 days.
Is the soil safe to grow vegetables in Barton Hills?
The federal record around Barton Hills runs heavier than most — 1,499 documented sites, mostly Brownfields entries (749), the nearest Underground Storage Tanks record about 0.6 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 Barton Hills?
From about Sep 23 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 23 (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 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Barton Hills's scale — its 6a band and its 187-day season. Your yard writes its own version of Barton Hills'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 Barton Hills’s own scale
7 of the readings below were taken at Barton Hills's own scale — its own ~187-day season between 28°F freezes, the 520 acres it covers and 1,499 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Barton Hills's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Barton Hills's own 28°F hard-freeze dates, about Apr 19 and Oct 23 and the ~187-day span between themNOAA 1991–2020 Climate Normals
- 1,499 documented contamination sites on the federal record near Barton Hills, the closest Underground Storage Tanks record about 0.6 miles out from the town centreFederal environmental registers
- Barton Hills's boundary and the 520 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~187-day seasonGrowable Ground crop-matching engine
- The ecoregion at Barton Hills's own centroid, the Eastern Corn Belt PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Barton Hillslydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Barton Hills's 520 acres read through its county's SSURGO summaryfrom Washtenaw County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Washtenaw 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 Washtenaw County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Barton Hills's 520 acreswhy one lot differs from the next →
- Which side of Barton Hills you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 520 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.6 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 Barton Hills-wide figureread your own land →
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