Sugar Hill, Georgia, sits in USDA hardiness zone 8a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
On paper, cabbage, fig, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Sugar Hill, 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 Sugar Hill 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 Sugar Hill — soil, climate, flood, and parcel records. How we handle your address.
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Sugar Hill — the short answer
Sugar Hill, Georgia: USDA zone 8a, about 258 days between hard freezes, across 7K acres of city.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~258
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 7K 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 8a is Sugar Hill's average, not your lot's — a low corner or a tree line moves it. Against Sugar Hill's 258-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Sugar Hill
Each reading below is measured for Sugar Hill itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredSugar Hill runs about 258 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
MeasuredSugar Hill 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 Sugar Hill is in
Sugar Hill sits in the Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Sugar Hill's own centroid rather than borrowed from Gwinnett County.
What Grows in Sugar Hill
Every plant below cleared Sugar Hill's own zone 8a and its 258-day season. Each card opens that plant's Georgia profile. How we score.






























Is it too late to plant in Sugar Hill?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 12; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 12 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 25 — 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.
What's on the federal record near Sugar Hill
Closest first, within ~10 miles of Sugar Hill. Listing isn't leaking, and distance isn't exposure.
- BST/BUFORD CO/F5602Underground Storage Tanks · 950 ft
- LAMBS USED CARSUnderground Storage Tanks · 1700 ft
- EXXON FOOD MARTUnderground Storage Tanks · 1800 ft
- MTI WHIRLPOOLS INC.Brownfields · 2500 ft
- MTI WHIRLPOOLS INC.Toxics Release Inventory · 2500 ft
- PRINCE BLESSING'SUnderground Storage Tanks · 0.6 mi
- GWINNCO MUFFLERUnderground Storage Tanks · 0.9 mi
- CHEVRONUnderground Storage Tanks · 1.0 mi
- PRO SOURCE PAINTINGBrownfields · 1.1 mi
- THOMAS CONCRETE OF GA INC-SUWANEEToxics Release Inventory · 1.1 mi
- THOMAS CONCRETE OF GA INC-SUWANEEUnderground Storage Tanks · 1.1 mi
- BROWN AND BROWN WRECKERUnderground Storage Tanks · 1.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Sugar Hill'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 Sugar Hill.
Total Sites
921
within ~10 miles of Sugar Hill
Risk Level
Elevated
Highest-severity
7 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Sugar Hill
Severity Distribution
within ~10 miles of Sugar Hill
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Sugar Hill, Toxics Release Inventory runs higher than the national average — 78 sites within ~10 miles of Sugar Hill. That's not a problem with your land — it's information about 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 Sugar Hill
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 Sugar Hill average
Your land is one point inside Sugar Hill
Everything above resolves to Sugar Hill as a whole — one PHZM band and one 28°F frost record, read across 7K 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 Sugar Hill Average
Sugar Hill Average
- ●USDA Zones 8a, averaged across Sugar Hill
- ●One soil character for all of Sugar Hill
- ●Frost dates read at Sugar Hill's scale: Mar 12 to Nov 25
YOUR Parcel
- ✓Your exact zone, not Sugar Hill's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Sugar Hill
Pull a site-specific report for your exact address in Sugar Hill, Georgia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Sugar Hill averages can't show:
We read public map data around Sugar Hill — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Sugar Hill average
How we know this about Sugar Hill
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 Sugar Hill’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 Sugar Hill
When does frost risk typically end in Sugar Hill?
The last hard freeze (28°F) in Sugar Hill typically lands around Mar 12, 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 2.
When is the first frost in Sugar Hill?
The first hard freeze (28°F) in Sugar Hill typically arrives around Nov 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 11, so the watching starts about Oct 26 — about 258 days after the spring freeze cleared.
How long is the growing season in Sugar Hill?
Measured between 28°F hard freezes, Sugar Hill sees about 258 frost-free days — roughly Mar 12 through Nov 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 2 to Nov 11, about 223 days.
Is the soil safe to grow vegetables in Sugar Hill?
The federal record around Sugar Hill is a meaningful one — 921 documented sites, mostly Underground Storage Tanks entries (500), the nearest Underground Storage Tanks record about 0.2 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 Sugar Hill?
From about Oct 26 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 25 (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 25. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Sugar Hill's scale — its 8a band and its 258-day season. Your yard writes its own version of Sugar Hill'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 Sugar Hill’s own scale
6 of the readings below were taken at Sugar Hill's own scale — its own ~258-day season between 28°F freezes, the 7,224 acres it covers and 921 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Sugar Hill's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Sugar Hill's own 28°F hard-freeze dates, about Mar 12 and Nov 25 and the ~258-day span between themNOAA 1991–2020 Climate Normals
- 921 documented contamination sites on the federal record near Sugar Hill, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Sugar Hill's boundary and the 7,224 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~258-day seasonGrowable Ground crop-matching engine
- The ecoregion at Sugar Hill's own centroid, the PiedmontUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Sugar Hill's 7,224 acres read through its county's SSURGO summaryfrom Gwinnett County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Gwinnett 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 Gwinnett County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Sugar Hill's 7,224 acreswhy one lot differs from the next →
- Which side of Sugar Hill you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 7,224 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Sugar Hill-wide figureread your own land →
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