Junction City, Oregon, sits in USDA hardiness zone 8b — 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 Junction City, 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 Junction City 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 Junction City — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Junction City — the short answer
Junction City, Oregon: USDA zone 8b, about 284 days between hard freezes, across 2K acres of city.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 17
- Lane County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 28
- Lane County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~284
- Lane County normal — NOAA 1991–2020, nearest to this town
- City area
- 2K 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 Lane County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Junction City's average, not your lot's — a low corner or a tree line moves it. Against Junction City's 284-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Junction City
Each reading below is measured for Junction City itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsJunction City runs about 284 days between hard freezes (read from Lane County, the closest normal to Junction City) — 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
MeasuredJunction City 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 Junction City is in
Junction City sits in the Willamette Valley — EPA Level III, inside the wider Marine West Coast Forest. That is read at Junction City's own centroid, and it is not what its county reads: Lane County is mostly Cascades. The wider page above you is answering a different question about different ground.
What Grows in Junction City
Every plant below cleared Junction City's own zone 8b and its 284-day season. Each card opens that plant's Oregon profile. How we score.
Is it too late to plant in Junction City?
Rarely: the season closes in stages, not all at once, and each stage has its crops. 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 Nov 28 — long-season crops need about 90 days of runway, quick greens only 30. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.
Documented around Junction City
Survey cells within 31 miles of Junction City checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 449 miles off. What to watch for.
What's on the federal record near Junction City
Closest first, within ~10 miles of Junction City. Listing isn't leaking, and distance isn't exposure.
- WINNEBAGO INDUSTRIESToxics Release Inventory · 650 ft
- COUNTRY COACH, INC.Underground Storage Tanks · 1100 ft
- A & K DEVELOPMENTBrownfields · 1100 ft
- MONACO COACH CORPUnderground Storage Tanks · 1200 ft
- JUNCTION CITY LUMBERUnderground Storage Tanks · 1400 ft
- GUARANTY CHEVROLET PONTIAC OLDSMOBILEBrownfields · 1400 ft
- GUARANTY CHEV/PONTIAC/OLDS CO INCUnderground Storage Tanks · 1400 ft
- GUARANTY AUTO & RV BODY SHOPBrownfields · 1700 ft
- MAYFLOWER CONTRACT SERVICESUnderground Storage Tanks · 1900 ft
- AG WESTUnderground Storage Tanks · 2000 ft
- TRUAX CORPORATION #44Underground Storage Tanks · 2100 ft
- GIBSON MOTOR CO.Underground Storage Tanks · 2200 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Junction City'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 Junction City.
Total Sites
338
within ~10 miles of Junction City
Risk Level
Elevated
Highest-severity
27 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Junction City
Severity Distribution
within ~10 miles of Junction City
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Junction City, Toxics Release Inventory runs higher than the national average — 27 sites within ~10 miles of Junction City. 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 Junction City
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 Junction City average
Your land is one point inside Junction City
Everything above resolves to Junction City as a whole — one PHZM band, read across 2K acres, with hard-freeze dates borrowed from Lane County’s record because no 30-year normal resolves at this city’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 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 Junction City Average
Junction City Average
- ●USDA Zones 8b, averaged across Junction City
- ●One soil character for all of Junction City
- ●Frost dates read at Junction City's scale: Feb 17 to Nov 28
YOUR Parcel
- ✓Your exact zone, not Junction City's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Junction City
Pull a site-specific report for your exact address in Junction City, Oregon — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Junction City averages can't show:
We read public map data around Junction City — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Junction City average
How we know this about Junction City
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 Lane 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 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 Junction City
When does frost risk typically end in Junction City?
The last hard freeze (28°F) in Junction City 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 Junction City?
The first hard freeze (28°F) in Junction City typically arrives around Nov 28, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 14, so the watching starts about Oct 29 — about 284 days after the spring freeze cleared.
How long is the growing season in Junction City?
Measured between 28°F hard freezes, Junction City sees about 284 frost-free days — roughly Feb 17 through Nov 28, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 10 to Nov 14, about 249 days.
Is the soil safe to grow vegetables in Junction City?
The federal record around Junction City is a meaningful one — 338 documented sites, mostly Underground Storage Tanks entries (200), the nearest Toxics Release Inventory record about 0.1 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 Junction City?
From about Oct 29 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 28 (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 28. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Junction City's scale — its 8b band and its 284-day season. Your yard writes its own version of Junction City'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 Junction City’s own scale
6 of the readings below were taken at Junction City's own scale — the 2,117 acres it covers and 338 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Junction City's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 338 documented contamination sites on the federal record near Junction City, the closest Toxics Release Inventory record about 0.1 miles out from the town centreFederal environmental registers
- Junction City's boundary and the 2,117 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~284-day seasonGrowable Ground crop-matching engine
- Junction City sits in the Willamette Valley — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- Lanternfly survey cells around Junction City checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- The 28°F hard-freeze dates — Junction City has no normal of its own, so its county's is the closest measured readfrom Lane County
- Soil character — no town-scale survey exists, so Junction City's 2,117 acres read through its county's SSURGO summaryfrom Lane County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Lane County
- The growing challenges every Oregon grower plans around — written at state scale, so they stay on the state guidefrom Oregon
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Lane County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Junction City's 2,117 acreswhy one lot differs from the next →
- Which side of Junction City you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,117 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Toxics Release Inventory 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 Junction City-wide figureread your own land →