Heron Bay, Georgia, sits in USDA hardiness zone 8a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Crops well matched to these conditions include cabbage, fig, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Heron Bay, 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 Heron Bay 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 Heron Bay — soil, climate, flood, and parcel records. How we handle your address.
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Heron Bay — the short answer
Heron Bay, Georgia: USDA zone 8a, about 257 days between hard freezes, across 3K acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 9
- Henry County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 21
- Henry County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~257
- Henry County normal — NOAA 1991–2020, nearest to this town
- Town area
- 3K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Henry County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8a is Heron Bay's average, not your lot's — a low corner or a tree line moves it. Against Heron Bay's 257-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Heron Bay
Each reading below is measured for Heron Bay itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsHeron Bay runs about 257 days between hard freezes (read from Henry County, the closest normal to Heron Bay) — 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
MeasuredHeron Bay sits in USDA hardiness zone 8a.
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 Heron Bay is in
Heron Bay sits in the Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Heron Bay's own centroid rather than borrowed from Henry County.
What Grows in Heron Bay
Every plant below cleared Heron Bay's own zone 8a and its 257-day season. Each card opens that plant's Georgia profile. How we score.
Is it too late to plant in Heron Bay?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Feb 9; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 9 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 21 — 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.
What's on the federal record near Heron Bay
Closest first, within ~10 miles of Heron Bay. Listing isn't leaking, and distance isn't exposure.
- LUELLA STATIONUnderground Storage Tanks · 1.1 mi
- HOWELLS HWY 155 BPUnderground Storage Tanks · 1.9 mi
- PUBLIX SUPERMARKET 1052 THE SHOPPES AT LOCUST GROVEBrownfields · 2.0 mi
- HOME DEPOT DC #6777Brownfields · 2.3 mi
- ABANDONED USTSUnderground Storage Tanks · 2.7 mi
- GRIFFIN ROLLOFF FIRESuperfund · 2.7 mi
- HOME DEPOT DC #6705Brownfields · 2.8 mi
- PIONEER CONCRETE PUMPINGUnderground Storage Tanks · 3.1 mi
- MCDONOUGH TRUCK & TRAILER COLLISION, LLC.Brownfields · 3.1 mi
- PENSKE TRUCK LEASING CO., LPBrownfields · 3.1 mi
- FILTER KLEEN ENVIRONMENTALBrownfields · 3.2 mi
- SHEH ZARD INCUnderground Storage Tanks · 3.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Heron Bay'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 Heron Bay.
Total Sites
481
within ~10 miles of Heron Bay
Risk Level
Elevated
Highest-severity
7 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Heron Bay
Severity Distribution
within ~10 miles of Heron Bay
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Heron Bay, two things run higher than the national average within ~10 miles of Heron Bay — PFAS (6 sites) and Superfund (7 sites). That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Heron Bay
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 Heron Bay average
Your land is one point inside Heron Bay
Everything above resolves to Heron Bay as a whole — one PHZM band, read across 3K acres, with hard-freeze dates borrowed from Henry County’s record because no 30-year normal resolves at this town’s own centroid. 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 Heron Bay Average
Heron Bay Average
- ●USDA Zones 8a, averaged across Heron Bay
- ●One soil character for all of Heron Bay
- ●Frost dates read at Heron Bay's scale: Mar 9 to Nov 21
YOUR Parcel
- ✓Your exact zone, not Heron Bay's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Heron Bay
Pull a site-specific report for your exact address in Heron Bay, Georgia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Heron Bay averages can't show:
We read public map data around Heron Bay — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Heron Bay average
How we know this about Heron Bay
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 Henry County’s record, because none resolves here; 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 Heron Bay
When does frost risk typically end in Heron Bay?
The last hard freeze (28°F) in Heron Bay typically lands around Mar 9, 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 Mar 30.
When is the first frost in Heron Bay?
The first hard freeze (28°F) in Heron Bay typically arrives around Nov 21, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 7, so the watching starts about Oct 22 — about 257 days after the spring freeze cleared.
How long is the growing season in Heron Bay?
Measured between 28°F hard freezes, Heron Bay sees about 257 frost-free days — roughly Mar 9 through Nov 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 30 to Nov 7, about 222 days.
Is the soil safe to grow vegetables in Heron Bay?
The federal record around Heron Bay is a meaningful one — 481 documented sites, mostly Underground Storage Tanks entries (329), the nearest Underground Storage Tanks record about 1.1 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 Heron Bay?
From about Oct 22 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 21 (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 21. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Heron Bay's scale — its 8a band and its 257-day season. Your yard writes its own version of Heron Bay'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 Heron Bay’s own scale
5 of the readings below were taken at Heron Bay's own scale — the 2,887 acres it covers and 481 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Heron Bay's own USDA hardiness band, zones 8aUSDA PHZM 2023
- 481 documented contamination sites on the federal record near Heron Bay, the closest Underground Storage Tanks record about 1.1 miles out from the town centreFederal environmental registers
- Heron Bay's boundary and the 2,887 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~257-day seasonGrowable Ground crop-matching engine
- The ecoregion at Heron Bay's own centroid, the PiedmontUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Heron Bay has no normal of its own, so its county's is the closest measured readfrom Henry County
- Soil character — no town-scale survey exists, so Heron Bay's 2,887 acres read through its county's SSURGO summaryfrom Henry County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Henry County
- The growing challenges every Georgia grower plans around — written at state scale, so they stay on the state guidefrom Georgia
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Henry County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Heron Bay's 2,887 acreswhy one lot differs from the next →
- Which side of Heron Bay you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,887 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 1.1 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 Heron Bay-wide figureread your own land →
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