Bromley, Kentucky, sits in USDA hardiness zone 6b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Expect cabbage, hazelnut, lavender, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Bromley, 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 Bromley 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 Bromley — soil, climate, flood, and parcel records. How we handle your address.
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Bromley — the short answer
Bromley, Kentucky: USDA zone 6b, about 225 days between hard freezes, across 240 acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 31
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 11
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~225
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 240 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 Bromley's average, not your lot's — a low corner or a tree line moves it. Against Bromley's 225-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Bromley
Each reading below is measured for Bromley itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBromley runs about 225 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
MeasuredBromley 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 Bromley is in
Bromley sits in the Interior Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Bromley's own centroid rather than borrowed from Kenton County.
What Grows in Bromley
Every plant below cleared Bromley's own zone 6b and its 225-day season. Each card opens that plant's Kentucky profile. How we score.
Is it too late to plant in Bromley?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 3; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 31 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 11 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around Bromley
Spotted lanternfly documented 2 miles from Bromley, first recorded 2022. What to watch for.
What's on the federal record near Bromley
Closest first, within ~10 miles of Bromley. Listing isn't leaking, and distance isn't exposure.
- BP CENTRAL PIPELINES LLC - BROMLEY STATIONBrownfields · 1600 ft
- Bromley WWTPUnderground Storage Tanks · 2000 ft
- Foulkes Auto ServiceUnderground Storage Tanks · 2500 ft
- UNO VEN #5400Underground Storage Tanks · 0.7 mi
- PETER CREMER NORTH AMERICA, LPBrownfields · 0.7 mi
- A21D0178Nitrate · 0.8 mi
- Ludlow ChevronUnderground Storage Tanks · 0.8 mi
- SPEEDWAY #9574Underground Storage Tanks · 0.8 mi
- SPEEDWAY 9574Brownfields · 0.8 mi
- PETEY-QUnderground Storage Tanks · 0.8 mi
- PETER CREMER NORTH AMERICABrownfields · 0.9 mi
- PETER CREMER NORTH AMERICAToxics Release Inventory · 0.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Bromley'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 Bromley.
Sources Checked
within ~10 miles of Bromley
Severity Distribution
within ~10 miles of Bromley
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Bromley, two things run higher than the national average within ~10 miles of Bromley — Toxics Release Inventory (243 sites) and Superfund (41 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Bromley
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 Bromley average
Your land is one point inside Bromley
Everything above resolves to Bromley as a whole — one PHZM band and one 28°F frost record, read across 240 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 Bromley Average
Bromley Average
- ●USDA Zones 6b, averaged across Bromley
- ●One soil character for all of Bromley
- ●Frost dates read at Bromley's scale: Mar 31 to Nov 11
YOUR Parcel
- ✓Your exact zone, not Bromley's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Bromley
Pull a site-specific report for your exact address in Bromley, Kentucky — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Bromley averages can't show:
We read public map data around Bromley — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Bromley average
How we know this about Bromley
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 Bromley’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 Bromley
When does frost risk typically end in Bromley?
The last hard freeze (28°F) in Bromley typically lands around Mar 31, 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 Apr 21.
When is the first frost in Bromley?
The first hard freeze (28°F) in Bromley typically arrives around Nov 11, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 28, so the watching starts about Oct 12 — about 225 days after the spring freeze cleared.
How long is the growing season in Bromley?
Measured between 28°F hard freezes, Bromley sees about 225 frost-free days — roughly Mar 31 through Nov 11, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 21 to Oct 28, about 190 days.
Is the soil safe to grow vegetables in Bromley?
The federal record around Bromley is a meaningful one — 2,519 documented sites, mostly Underground Storage Tanks entries (1,501), the nearest Brownfields record about 0.3 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 Bromley?
From about Oct 12 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 11 (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 11. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Bromley's scale — its 6b band and its 225-day season. Your yard writes its own version of Bromley'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 Bromley’s own scale
7 of the readings below were taken at Bromley's own scale — its own ~225-day season between 28°F freezes, the 240 acres it covers and 2,519 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Bromley's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Bromley's own 28°F hard-freeze dates, about Mar 31 and Nov 11 and the ~225-day span between themNOAA 1991–2020 Climate Normals
- 2,519 documented contamination sites on the federal record near Bromley, the closest Brownfields record about 0.3 miles out from the town centreFederal environmental registers
- Bromley's boundary and the 240 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~225-day seasonGrowable Ground crop-matching engine
- The ecoregion at Bromley's own centroid, the Interior PlateauUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Bromleylydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Bromley's 240 acres read through its county's SSURGO summaryfrom Kenton County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Kenton County
- The growing challenges every Kentucky grower plans around — written at state scale, so they stay on the state guidefrom Kentucky
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Kenton County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Bromley's 240 acreswhy one lot differs from the next →
- Which side of Bromley you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 240 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.3 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 Bromley-wide figureread your own land →
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