Coquille, Oregon, sits in USDA hardiness zone 9a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
A short list that earns its place here — artichoke, fig, california poppy, and cabbage — with any one site's soil, sun, and drainage making the final cut.
Even in Coquille, 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 Coquille 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 Coquille — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Coquille — the short answer
Coquille, Oregon: USDA zone 9a, about 292 days between hard freezes, across 2K acres of city.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 8
- Coos County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 27
- Coos County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~292
- Coos 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 Coos County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Coquille's average, not your lot's — a low corner or a tree line moves it. Against Coquille's 292-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Coquille
Each reading below is measured for Coquille itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsCoquille runs about 292 days between hard freezes (read from Coos County, the closest normal to Coquille) — 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
MeasuredCoquille sits in USDA hardiness zone 9a.
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 Coquille is in
Coquille sits in the Coast Range — EPA Level III, inside the wider Marine West Coast Forest. That is read at Coquille's own centroid rather than borrowed from Coos County.
What Grows in Coquille
Every plant below cleared Coquille's own zone 9a and its 292-day season. Each card opens that plant's Oregon profile. How we score.
Is it too late to plant in Coquille?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Jan 11; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 27 — 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 Coquille
Closest first, within ~10 miles of Coquille. Listing isn't leaking, and distance isn't exposure.
- BLOMQUIST, ROBERTUnderground Storage Tanks · 550 ft
- GTE - BLUE RIDGE MW REMOTE (6580-B01)Underground Storage Tanks · 550 ft
- US BLM RD MAINTENANCE - MIDDLE CRK SHOPUnderground Storage Tanks · 550 ft
- RON'S OIL CO #3Underground Storage Tanks · 1300 ft
- PACIFIC POWER & LIGHTUnderground Storage Tanks · 1300 ft
- ARNOLD'S UNION 76Underground Storage Tanks · 1300 ft
- AGNESS ENTERPRISES LTDUnderground Storage Tanks · 1400 ft
- FORMER SOUTHWESTERN MOTORSUnderground Storage Tanks · 1800 ft
- ONE STOP MARKETUnderground Storage Tanks · 1800 ft
- GTE COQUILLE CENTRAL OFFICEUnderground Storage Tanks · 1900 ft
- SAFEWAY STORE NO 4262Brownfields · 2200 ft
- COOS COUNTY HWY DEPTUnderground Storage Tanks · 2200 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Coquille'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 Coquille.
Total Sites
93
within ~10 miles of Coquille
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Coquille
Severity Distribution
within ~10 miles of Coquille
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Coquille, Mining runs higher than the national average — 29 sites within ~10 miles of Coquille. That's not a problem with your land — it's information about it.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in Coquille
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 Coquille average
Your land is one point inside Coquille
Everything above resolves to Coquille as a whole — one PHZM band, read across 2K acres, with hard-freeze dates borrowed from Coos 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 Coquille Average
Coquille Average
- ●USDA Zones 9a, averaged across Coquille
- ●One soil character for all of Coquille
- ●Frost dates read at Coquille's scale: Feb 8 to Nov 27
YOUR Parcel
- ✓Your exact zone, not Coquille's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Coquille
Pull a site-specific report for your exact address in Coquille, Oregon — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Coquille averages can't show:
We read public map data around Coquille — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Coquille average
How we know this about Coquille
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 Coos 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 Coquille
When does frost risk typically end in Coquille?
The last hard freeze (28°F) in Coquille typically lands around Feb 8, 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 1.
When is the first frost in Coquille?
The first hard freeze (28°F) in Coquille typically arrives around Nov 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 13, so the watching starts about Oct 28 — about 292 days after the spring freeze cleared.
How long is the growing season in Coquille?
Measured between 28°F hard freezes, Coquille sees about 292 frost-free days — roughly Feb 8 through Nov 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 1 to Nov 13, about 257 days.
Is the soil safe to grow vegetables in Coquille?
The federal record around Coquille shows 93 documented sites, mostly Underground Storage Tanks entries (47), 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 Coquille?
From about Oct 28 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 27 (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 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Coquille's scale — its 9a band and its 292-day season. Your yard writes its own version of Coquille'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 Coquille’s own scale
5 of the readings below were taken at Coquille's own scale — the 1,769 acres it covers and 93 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Coquille's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 93 documented contamination sites on the federal record near Coquille, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Coquille's boundary and the 1,769 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~292-day seasonGrowable Ground crop-matching engine
- The ecoregion at Coquille's own centroid, the Coast RangeUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Coquille has no normal of its own, so its county's is the closest measured readfrom Coos County
- Soil character — no town-scale survey exists, so Coquille's 1,769 acres read through its county's SSURGO summaryfrom Coos County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Coos 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 Coos County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Coquille's 1,769 acreswhy one lot differs from the next →
- Which side of Coquille you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,769 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 Coquille-wide figureread your own land →