Gates Mills, Ohio, sits in USDA hardiness zone 6b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
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 Gates Mills, 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 Gates Mills 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 Gates Mills — soil, climate, flood, and parcel records. How we handle your address.
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Gates Mills — the short answer
Gates Mills, Ohio: USDA zone 6b, about 215 days between hard freezes, across 6K acres of town.
- 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 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~215
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 6K 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 Gates Mills's average, not your lot's — a low corner or a tree line moves it. Against Gates Mills's 215-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Gates Mills
Each reading below is measured for Gates Mills itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGates Mills runs about 215 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
MeasuredGates Mills 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 Gates Mills is in
Gates Mills sits in the Erie Drift Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Gates Mills's own centroid rather than borrowed from Cuyahoga County.
What Grows in Gates Mills
Every plant below cleared Gates Mills's own zone 6b and its 215-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in Gates Mills?
Usually not — gardeners here simply switch what goes in the ground as the season moves. 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 15 — 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.
Documented around Gates Mills
Spotted lanternfly documented 6 miles from Gates Mills, first recorded 2023. What to watch for.
What's on the federal record near Gates Mills
Closest first, within ~10 miles of Gates Mills. Listing isn't leaking, and distance isn't exposure.
- VILLAGE OF GATES MILLSUnderground Storage Tanks · 0.8 mi
- GATES MILLS VALLEY GARAGEUnderground Storage Tanks · 0.8 mi
- LYNDHURST CAMPUSUnderground Storage Tanks · 1.1 mi
- ETTKIN SCRAP METAL & IRON COToxics Release Inventory · 1.1 mi
- BEECH HILL PUMP STATIONUnderground Storage Tanks · 1.2 mi
- CLEVELAND CLINIC HILLCREST HOSPITALBrownfields · 1.4 mi
- MAYFIELD BUS GARAGEUnderground Storage Tanks · 1.4 mi
- HILLCREST HOSPITALUnderground Storage Tanks · 1.4 mi
- GATES MILLS CLUBUnderground Storage Tanks · 1.5 mi
- LFE CORP *Brownfields · 1.5 mi
- CHANNEL PRODUCTS INCToxics Release Inventory · 1.5 mi
- CHANNEL PRODUCTS INCBrownfields · 1.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Gates Mills'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 Gates Mills.
Total Sites
1,844
within ~10 miles of Gates Mills
Risk Level
Elevated
Highest-severity
15 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Gates Mills
Severity Distribution
within ~10 miles of Gates Mills
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Gates Mills, Toxics Release Inventory runs higher than the national average — 198 sites within ~10 miles of Gates Mills. 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 Gates Mills
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 Gates Mills average
Your land is one point inside Gates Mills
Everything above resolves to Gates Mills as a whole — one PHZM band and one 28°F frost record, read across 6K 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 Gates Mills Average
Gates Mills Average
- ●USDA Zones 6b, averaged across Gates Mills
- ●One soil character for all of Gates Mills
- ●Frost dates read at Gates Mills's scale: Apr 14 to Nov 15
YOUR Parcel
- ✓Your exact zone, not Gates Mills's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Gates Mills
Pull a site-specific report for your exact address in Gates Mills, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Gates Mills averages can't show:
We read public map data around Gates Mills — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Gates Mills average
How we know this about Gates Mills
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 Gates Mills’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 Gates Mills
When does frost risk typically end in Gates Mills?
The last hard freeze (28°F) in Gates Mills 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 Gates Mills?
The first hard freeze (28°F) in Gates Mills typically arrives around Nov 15, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 1, so the watching starts about Oct 16 — about 215 days after the spring freeze cleared.
How long is the growing season in Gates Mills?
Measured between 28°F hard freezes, Gates Mills sees about 215 frost-free days — roughly Apr 14 through Nov 15, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 5 to Nov 1, about 180 days.
Is the soil safe to grow vegetables in Gates Mills?
The federal record around Gates Mills is a meaningful one — 1,844 documented sites, mostly Underground Storage Tanks entries (872), the nearest Underground Storage Tanks record about 0.8 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 Gates Mills?
From about Oct 16 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 15 (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 15. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Gates Mills's scale — its 6b band and its 215-day season. Your yard writes its own version of Gates Mills'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 Gates Mills’s own scale
7 of the readings below were taken at Gates Mills's own scale — its own ~215-day season between 28°F freezes, the 5,748 acres it covers and 1,844 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Gates Mills's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Gates Mills's own 28°F hard-freeze dates, about Apr 14 and Nov 15 and the ~215-day span between themNOAA 1991–2020 Climate Normals
- 1,844 documented contamination sites on the federal record near Gates Mills, the closest Underground Storage Tanks record about 0.8 miles out from the town centreFederal environmental registers
- Gates Mills's boundary and the 5,748 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~215-day seasonGrowable Ground crop-matching engine
- The ecoregion at Gates Mills's own centroid, the Erie Drift PlainUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Gates Millslydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Gates Mills's 5,748 acres read through its county's SSURGO summaryfrom Cuyahoga County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Cuyahoga County
- The growing challenges every Ohio grower plans around — written at state scale, so they stay on the state guidefrom Ohio
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Cuyahoga County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Gates Mills's 5,748 acreswhy one lot differs from the next →
- Which side of Gates Mills you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,748 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.8 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 Gates Mills-wide figureread your own land →