What Grows in Richmond Heights, Ohio

USDA Zones 6b · 3K acres

Richmond Heights, Ohio, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.

Well-matched crops include cabbage, hazelnut, lavender, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.

Score your parcel · free

Even in Richmond Heights, 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 Richmond Heights 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 Richmond Heights — soil, climate, flood, and parcel records. How we handle your address.

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Richmond Heights — the short answer

Richmond Heights, Ohio: USDA zone 6b, about 222 days between hard freezes, across 3K acres of city.

USDA zone
6b
USDA PHZM 2023
Last hard freeze (28°F)
Apr 8
NOAA 1991–2020 Climate Normals, 28°F — this town
First hard freeze (28°F)
Nov 16
NOAA 1991–2020 Climate Normals, 28°F — this town
Days between freezes
~222
NOAA 1991–2020 Climate Normals, 28°F — this town
City 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

6b6b
3a (Cold)13b (Hot)

Zone 6b is Richmond Heights's average, not your lot's — a low corner or a tree line moves it. Against Richmond Heights's 222-day season, see what your own ground reads.

Soil varies lot by lot — soil types explained.

What this means for growing in Richmond Heights

Each reading below is measured for Richmond Heights itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length

Measured

Richmond Heights runs about 222 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

Measured

Richmond Heights 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 Richmond Heights is in

Richmond Heights sits in the Erie Drift Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Richmond Heights's own centroid rather than borrowed from Cuyahoga County.

What that means for soil

What Grows in Richmond Heights

Every plant below cleared Richmond Heights's own zone 6b and its 222-day season. Each card opens that plant's Ohio profile. How we score.

cabbage, photograph
Growing cabbage in OhioZones 2–11Richmond Heights's 6b — 4 zones of cold margin.
hazelnut, photograph
Ohio hazelnut guideZones 4–9Richmond Heights's 6b — 2 zones of cold margin.
lavender, photograph
Lavender in OhioZones 5–8Richmond Heights's 6b — 1 zone of cold margin.
collard greens, photograph
Collard greens: Ohio growing notesZones 2–11Richmond Heights's 6b — 4 zones of cold margin.
blackberry, photograph
Growing blackberry in OhioZones 5–8Richmond Heights's 6b — 1 zone of cold margin.
California poppy, photograph
Ohio california poppy guideZones 6–10Richmond Heights's 6b is its exact cold limit.
garlic, photograph
Garlic in OhioZones 2–10Richmond Heights's 6b — 4 zones of cold margin.
blueberry, photograph
Blueberry: Ohio growing notesZones 3–8Richmond Heights's 6b — 3 zones of cold margin.
Turkish rocket, photograph
Growing turkish rocket in OhioRichmond Heights's 222 days clear the ~90 it needs.
kale, photograph
Ohio kale guideZones 2–11Richmond Heights's 6b — 4 zones of cold margin.
pawpaw, photograph
Pawpaw in OhioZones 5–9Richmond Heights's 6b — 1 zone of cold margin.
angelica, photograph
Angelica: Ohio growing notesZones 4–9Richmond Heights's 222 days clear the ~120 it needs.
lentil, photograph
Growing lentil in OhioZones 2–11Richmond Heights's 222 days clear the ~70 it needs.
okra, photograph
Ohio okra guideZones 2–12Richmond Heights's 222 days clear the ~50 it needs.
potato, photograph
Potato in OhioZones 2–11Richmond Heights's 6b — 4 zones of cold margin.
iris, photograph
Iris: Ohio growing notesZones 3–10Richmond Heights's 6b — 3 zones of cold margin.
sunflower, photograph
Growing sunflower in OhioZones 2–11Richmond Heights's 222 days clear the ~70 it needs.
lilac, photograph
Ohio lilac guideZones 4–10Richmond Heights's 6b — 2 zones of cold margin.
hops, photograph
Hops in OhioZones 3–8Richmond Heights's 6b — 3 zones of cold margin.
hosta, photograph
Hosta: Ohio growing notesZones 3–8Richmond Heights's 6b — 3 zones of cold margin.
French marigold, photograph
Growing french marigold in OhioRichmond Heights's 222 days clear the ~50 it needs.
Apache plume, photograph
Ohio apache plume guideZones 5–11Richmond Heights's 6b — 1 zone of cold margin.
Virginia creeper, photograph
Virginia creeper in OhioZones 3–9Richmond Heights's 6b — 3 zones of cold margin.
tulip, photograph
Tulip: Ohio growing notesZones 6–8Richmond Heights's 6b is its exact cold limit.
American elm, photograph
Growing american elm in OhioZones 3–9Richmond Heights's 6b — 3 zones of cold margin.
Ethiopian mustard, photograph
Ohio ethiopian mustard guideZones 4–10Richmond Heights's 6b — 2 zones of cold margin.
Kentucky bluegrass, botanical illustration
Kentucky bluegrass in OhioZones 2–7Richmond Heights's 6b — 4 zones of cold margin.
Douglas fir, photograph
Douglas fir: Ohio growing notesZones 4–10Richmond Heights's 6b — 2 zones of cold margin.
alfalfa, photograph
Growing alfalfa in OhioZones 2–10Richmond Heights's 222 days clear the ~100 it needs.
Indian grass, photograph
Ohio indian grass guideZones 4–9Richmond Heights's 6b — 2 zones of cold margin.

Is it too late to plant in Richmond Heights?

Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 11; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 16 — 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 Richmond Heights

Spotted lanternfly documented 2 miles from Richmond Heights, first recorded 2023. What to watch for.

What's on the federal record near Richmond Heights

Closest first, within ~10 miles of Richmond Heights. Listing isn't leaking, and distance isn't exposure.

  1. CORPORATE WINGSUnderground Storage Tanks · 0.6 mi
  2. RICHMOND HEIGHTS HIGH SCHOOL MERCURY SPILLSuperfund · 0.7 mi
  3. FLIGHT OPTIONS LLCUnderground Storage Tanks · 0.7 mi
  4. RICHMOND HEIGHTS BUS GARAGEUnderground Storage Tanks · 0.7 mi
  5. RICHMOND MARATHONUnderground Storage Tanks · 0.7 mi
  6. DICK HARRIS UNOCALUnderground Storage Tanks · 0.8 mi
  7. HILLCREST AMBULANCE SERVICE, INCUnderground Storage Tanks · 0.8 mi
  8. RELIANCE ELECTRIC FLIGHT DEPTBrownfields · 0.8 mi
  9. FLIGHT OPTIONSBrownfields · 0.8 mi
  10. LONGSTREET AUTO BODY & SALES INCBrownfields · 0.8 mi
  11. PROGRESSIVE INSURANCEUnderground Storage Tanks · 0.9 mi
  12. MOMENTIVE PERFORMANCE MATERIALS QUARTZ, INC.Brownfields · 0.9 mi

6 more sites are on the record inside the same radius. See them on the map

Measured from Richmond Heights'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 Richmond Heights.

Total Sites

2,554

within ~10 miles of Richmond Heights

Risk Level

Elevated

Highest-severity

44 Superfund sites (none NPL-listed)

Severity Distribution

within ~10 miles of Richmond Heights

High1Moderate652Low1,901

Highest-Severity Sites

University Hospitals - Main Campus
PFAS Sampling · PFAS Detected
1111 Superior LLC
Underground Storage Tanks · Open UST(S)
13165 Larchmere Bp Oh0069
Underground Storage Tanks · Open UST(S)
20420 Chagrin Shaker Hts LLC
Underground Storage Tanks · Open UST(S)
2159 South Green Unv Hts LLC
Underground Storage Tanks · Open UST(S)

A note from Gnorman

What an experienced grower watches for around here

In and around Richmond Heights, two things run higher than the national average within ~10 miles of Richmond Heights — Toxics Release Inventory (263 sites) and Superfund (44 sites). 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.

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).

Free Report

Check your specific parcel in Richmond Heights

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 Richmond Heights average

Your land is one point inside Richmond Heights

Everything above resolves to Richmond Heights 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 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 Richmond Heights Average

Richmond Heights Average

  • USDA Zones 6b, averaged across Richmond Heights
  • One soil character for all of Richmond Heights
  • Frost dates read at Richmond Heights's scale: Apr 8 to Nov 16

YOUR Parcel

  • Your exact zone, not Richmond Heights's 6b
  • Your SSURGO soil type & pH
  • Your sun exposure, cast in 3D

See MY Growing Report

Free Report

Read your specific parcel in Richmond Heights

Pull a site-specific report for your exact address in Richmond Heights, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.

Three things about your lot that Richmond Heights averages can't show:

Your soil pHYour frost-free days — Richmond Heights averages 222Your sun & shade

We read public map data around Richmond Heights — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources read at your address, not the Richmond Heights average

How we know this about Richmond Heights

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 Richmond Heights’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 Richmond Heights

When does frost risk typically end in Richmond Heights?

The last hard freeze (28°F) in Richmond Heights typically lands around Apr 8, 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 29.

When is the first frost in Richmond Heights?

The first hard freeze (28°F) in Richmond Heights typically arrives around Nov 16, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 2, so the watching starts about Oct 17 — about 222 days after the spring freeze cleared.

How long is the growing season in Richmond Heights?

Measured between 28°F hard freezes, Richmond Heights sees about 222 frost-free days — roughly Apr 8 through Nov 16, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 29 to Nov 2, about 187 days.

Is the soil safe to grow vegetables in Richmond Heights?

The federal record around Richmond Heights is a meaningful one — 2,554 documented sites, mostly Underground Storage Tanks entries (1,329), the nearest Underground Storage Tanks record about 0.6 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 Richmond Heights?

From about Oct 17 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 16 (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 16. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.

Everything above is measured at Richmond Heights's scale — its 6b band and its 222-day season. Your yard writes its own version of Richmond Heights'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 Richmond Heights’s own scale

7 of the readings below were taken at Richmond Heights's own scale — its own ~222-day season between 28°F freezes, the 2,837 acres it covers and 2,554 documented sites around it; 4 are borrowed from a wider read, named and linked below.

Measured here

  • Richmond Heights's own USDA hardiness band, zones 6bUSDA PHZM 2023
  • Richmond Heights's own 28°F hard-freeze dates, about Apr 8 and Nov 16 and the ~222-day span between themNOAA 1991–2020 Climate Normals
  • 2,554 documented contamination sites on the federal record near Richmond Heights, the closest Underground Storage Tanks record about 0.6 miles out from the town centreFederal environmental registers
  • Richmond Heights's boundary and the 2,837 acres inside itUS Census TIGER/Line 2025
  • Which of 1,086 plants clear zones 6b and a ~222-day seasonGrowable Ground crop-matching engine
  • The ecoregion at Richmond Heights's own centroid, the Erie Drift PlainUS EPA Level III Ecoregions
  • A documented spotted-lanternfly record within reach of Richmond Heightslydemapr (De Bona & Helmus), 10 km survey lattice

Inherited from a wider read

  • Soil character — no town-scale survey exists, so Richmond Heights's 2,837 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 Richmond Heights's 2,837 acreswhy one lot differs from the next
  • Which side of Richmond Heights you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,837 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 Richmond Heights-wide figureread your own land
The next step finer is your own address