Sesser, Illinois, sits in USDA hardiness zone 6b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
These conditions suit cabbage, hazelnut, lavender, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Sesser, 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 Sesser 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 Sesser — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Sesser — the short answer
Sesser, Illinois: USDA zone 6b, about 226 days between hard freezes, across 672 acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 6
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~226
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 672 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 Sesser's average, not your lot's — a low corner or a tree line moves it. Against Sesser's 226-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Sesser
Each reading below is measured for Sesser itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSesser runs about 226 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
MeasuredSesser 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 Sesser is in
Sesser sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Sesser's own centroid rather than borrowed from Franklin County.
What Grows in Sesser
Every plant below cleared Sesser's own zone 6b and its 226-day season. Each card opens that plant's Illinois profile. How we score.
Is it too late to plant in Sesser?
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 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 25 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 6 — 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 Sesser
Closest first, within ~10 miles of Sesser. Listing isn't leaking, and distance isn't exposure.
- Sesser Sun MartUnderground Storage Tanks · 600 ft
- Levault HalicUnderground Storage Tanks · 600 ft
- Mine 21 B ShaftUnderground Storage Tanks · 600 ft
- Mine 26 B ShaftUnderground Storage Tanks · 600 ft
- Sesser-Valier Unit #196Underground Storage Tanks · 600 ft
- Valier Radio TowerUnderground Storage Tanks · 600 ft
- C&R Auto Body & SalesUnderground Storage Tanks · 600 ft
- Casey's General Stores #2053Underground Storage Tanks · 1000 ft
- Former Sesser Tire MartUnderground Storage Tanks · 1100 ft
- L & L Marathon ServiceUnderground Storage Tanks · 1100 ft
- Hucks #166Underground Storage Tanks · 1200 ft
- JUMPIN JIMMY'SBrownfields · 1400 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Sesser'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 Sesser.
Total Sites
142
within ~10 miles of Sesser
Risk Level
Moderate
Highest-severity
5 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Sesser
Severity Distribution
within ~10 miles of Sesser
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Sesser, Underground Storage Tanks runs higher than the national average — 101 sites within ~10 miles of Sesser. 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 Sesser
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 Sesser average
Your land is one point inside Sesser
Everything above resolves to Sesser as a whole — one PHZM band and one 28°F frost record, read across 672 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 Sesser Average
Sesser Average
- ●USDA Zones 6b, averaged across Sesser
- ●One soil character for all of Sesser
- ●Frost dates read at Sesser's scale: Mar 25 to Nov 6
YOUR Parcel
- ✓Your exact zone, not Sesser's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Sesser
Pull a site-specific report for your exact address in Sesser, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Sesser averages can't show:
We read public map data around Sesser — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Sesser average
How we know this about Sesser
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 Sesser’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 Sesser
When does frost risk typically end in Sesser?
The last hard freeze (28°F) in Sesser typically lands around Mar 25, 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 15.
When is the first frost in Sesser?
The first hard freeze (28°F) in Sesser typically arrives around Nov 6, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 23, so the watching starts about Oct 7 — about 226 days after the spring freeze cleared.
How long is the growing season in Sesser?
Measured between 28°F hard freezes, Sesser sees about 226 frost-free days — roughly Mar 25 through Nov 6, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 15 to Oct 23, about 191 days.
Is the soil safe to grow vegetables in Sesser?
The federal record around Sesser shows 142 documented sites, mostly Underground Storage Tanks entries (101), 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 Sesser?
From about Oct 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 Nov 6 (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 6. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Sesser's scale — its 6b band and its 226-day season. Your yard writes its own version of Sesser'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 Sesser’s own scale
6 of the readings below were taken at Sesser's own scale — its own ~226-day season between 28°F freezes, the 672 acres it covers and 142 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Sesser's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Sesser's own 28°F hard-freeze dates, about Mar 25 and Nov 6 and the ~226-day span between themNOAA 1991–2020 Climate Normals
- 142 documented contamination sites on the federal record near Sesser, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Sesser's boundary and the 672 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~226-day seasonGrowable Ground crop-matching engine
- The ecoregion at Sesser's own centroid, the Interior River Valleys and HillsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Sesser's 672 acres read through its county's SSURGO summaryfrom Franklin County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Franklin County
- The growing challenges every Illinois grower plans around — written at state scale, so they stay on the state guidefrom Illinois
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Franklin County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Sesser's 672 acreswhy one lot differs from the next →
- Which side of Sesser you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 672 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 Sesser-wide figureread your own land →
More in Illinois
Wider growing context
What grows across IllinoisSesser sits outside our named growing regions, so Illinois as a whole is its closest context here.
Nearby growing guides