Portal, Georgia, sits in USDA hardiness zone 8b — 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 Portal, 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 Portal 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 Portal — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Portal — the short answer
Portal, Georgia: USDA zone 8b, about 293 days between hard freezes, across 1K acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 17
- Bulloch County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 7
- Bulloch County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~293
- Bulloch County normal — NOAA 1991–2020, nearest to this town
- Town area
- 1K 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 Bulloch County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Portal's average, not your lot's — a low corner or a tree line moves it. Against Portal's 293-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Portal
Each reading below is measured for Portal itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsPortal runs about 293 days between hard freezes (read from Bulloch County, the closest normal to Portal) — close to year-round growing.
Frost is rarely the limit here; winter plantings are as real as summer ones, and the harder question is which crops shrug off the summer heat.
Grow cool-season crops through the mild winter, and choose heat-tolerant varieties for the summer beds.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredPortal sits in USDA hardiness zone 8b.
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 Portal is in
Portal sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Portal's own centroid rather than borrowed from Bulloch County.
What Grows in Portal
Every plant below cleared Portal's own zone 8b and its 293-day season. Each card opens that plant's Georgia profile. How we score.
Is it too late to plant in Portal?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Jan 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 17 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 7 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.
What's on the federal record near Portal
Closest first, within ~10 miles of Portal. Listing isn't leaking, and distance isn't exposure.
- PORTAL TELEPHONE EXUnderground Storage Tanks · 750 ft
- MILL CREEK 5Underground Storage Tanks · 900 ft
- M.S. TIRESUnderground Storage Tanks · 950 ft
- PORTAL SCHOOLUnderground Storage Tanks · 950 ft
- 30U002Nitrate · 1300 ft
- MIKE'S USED OILBrownfields · 1.4 mi
- ENK766Underground Storage Tanks · 2.1 mi
- YUG FOOD MARTUnderground Storage Tanks · 3.4 mi
- J & T MINIT MART LLCUnderground Storage Tanks · 3.7 mi
- RACO #12Underground Storage Tanks · 4.4 mi
- TIMESAVER #26Underground Storage Tanks · 4.5 mi
- SMITH HEALY FARMS INCUnderground Storage Tanks · 5.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Portal'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 Portal.
Total Sites
54
within ~10 miles of Portal
Risk Level
Moderate
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Portal
Severity Distribution
within ~10 miles of Portal
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Portal, Underground Storage Tanks runs higher than the national average — 46 sites within ~10 miles of Portal. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Portal
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 Portal average
Your land is one point inside Portal
Everything above resolves to Portal as a whole — one PHZM band, read across 1K acres, with hard-freeze dates borrowed from Bulloch 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 Portal Average
Portal Average
- ●USDA Zones 8b, averaged across Portal
- ●One soil character for all of Portal
- ●Frost dates read at Portal's scale: Feb 17 to Dec 7
YOUR Parcel
- ✓Your exact zone, not Portal's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Portal
Pull a site-specific report for your exact address in Portal, Georgia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Portal averages can't show:
We read public map data around Portal — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Portal average
How we know this about Portal
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 Bulloch 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 Portal
When does frost risk typically end in Portal?
The last hard freeze (28°F) in Portal typically lands around Feb 17, 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 10.
When is the first frost in Portal?
The first hard freeze (28°F) in Portal typically arrives around Dec 7, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 23, so the watching starts about Nov 7 — about 293 days after the spring freeze cleared.
How long is the growing season in Portal?
Measured between 28°F hard freezes, Portal sees about 293 frost-free days — roughly Feb 17 through Dec 7, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 10 to Nov 23, about 258 days.
Is the soil safe to grow vegetables in Portal?
The federal record around Portal shows 54 documented sites, mostly Underground Storage Tanks entries (46), the nearest Underground Storage Tanks record about 0.1 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Portal?
From about Nov 7 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 Dec 7 (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 Dec 7. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Portal's scale — its 8b band and its 293-day season. Your yard writes its own version of Portal'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 Portal’s own scale
5 of the readings below were taken at Portal's own scale — the 1,281 acres it covers and 54 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Portal's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 54 documented contamination sites on the federal record near Portal, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Portal's boundary and the 1,281 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~293-day seasonGrowable Ground crop-matching engine
- The ecoregion at Portal's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Portal has no normal of its own, so its county's is the closest measured readfrom Bulloch County
- Soil character — no town-scale survey exists, so Portal's 1,281 acres read through its county's SSURGO summaryfrom Bulloch County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Bulloch 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 Bulloch County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Portal's 1,281 acreswhy one lot differs from the next →
- Which side of Portal you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,281 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.1 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 Portal-wide figureread your own land →
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