Gardiner, Oregon, sits in USDA hardiness zone 9a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Reliable performers under these conditions include kale, douglas fir, garlic, and hazelnut; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Gardiner, 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 Gardiner 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 Gardiner — soil, climate, flood, and parcel records. How we handle your address.
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Gardiner — the short answer
Gardiner, Oregon: USDA zone 9a, about 277 days between hard freezes, across 369 acres of town.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 23
- Douglas County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 27
- Douglas County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~277
- Douglas County normal — NOAA 1991–2020, nearest to this town
- Town area
- 369 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 Douglas County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Gardiner's average, not your lot's — a low corner or a tree line moves it. Against Gardiner's 277-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Gardiner
Each reading below is measured for Gardiner itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsGardiner runs about 277 days between hard freezes (read from Douglas County, the closest normal to Gardiner) — 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
MeasuredGardiner 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 Gardiner is in
Gardiner sits in the Coast Range — EPA Level III, inside the wider Marine West Coast Forest. That is read at Gardiner's own centroid, and it is not what its county reads: Douglas County is mostly Cascades. The wider page above you is answering a different question about different ground.
What Grows in Gardiner
Plants matched to Gardiner's USDA zones 9a, ordered by how much hardiness margin each has here — the ones with room to spare at both ends of this town's band lead. Each links to its full growing profile.
Is it too late to plant in Gardiner?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Jan 26; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 23 (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 Gardiner
Closest first, within ~10 miles of Gardiner. Listing isn't leaking, and distance isn't exposure.
- U.S. BLM/ROAD MAINTENANCE-WEST FORK SHOPUnderground Storage Tanks · 1600 ft
- LONGVIEW, PORTLAND & NORTHERN RY. CO.Underground Storage Tanks · 1600 ft
- GARDINER SHELL STATIONUnderground Storage Tanks · 1800 ft
- INDUSTRIAL HARBOR USABrownfields · 0.6 mi
- INDUSTRIAL HARBOR USAToxics Release Inventory · 0.6 mi
- FRED WAHL MARINE CONSTRUCTION, INC.Brownfields · 1.3 mi
- PACIFIC PRIDE CARDLOCK - TYREE OILUnderground Storage Tanks · 1.8 mi
- FRED WAHL MARINE CONSTRUCTION INCBrownfields · 1.9 mi
- RIVERSIDE RV PARKBrownfields · 1.9 mi
- PUMP STATION #4Underground Storage Tanks · 2.0 mi
- OR DUNES NAT'L RECREATION AREAUnderground Storage Tanks · 2.0 mi
- F & M FUEL, LLCUnderground Storage Tanks · 2.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Gardiner'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 Gardiner.
Total Sites
58
within ~10 miles of Gardiner
Risk Level
Moderate
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Gardiner
Severity Distribution
within ~10 miles of Gardiner
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Gardiner, Underground Storage Tanks runs higher than the national average — 46 sites within ~10 miles of Gardiner. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
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 Gardiner
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 Gardiner average
Your land is one point inside Gardiner
Everything above resolves to Gardiner as a whole — one PHZM band, read across 369 acres, with hard-freeze dates borrowed from Douglas 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 Gardiner Average
Gardiner Average
- ●USDA Zones 9a, averaged across Gardiner
- ●One soil character for all of Gardiner
- ●Frost dates read at Gardiner's scale: Feb 23 to Nov 27
YOUR Parcel
- ✓Your exact zone, not Gardiner's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Gardiner
Pull a site-specific report for your exact address in Gardiner, Oregon — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Gardiner averages can't show:
We read public map data around Gardiner — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Gardiner average
How we know this about Gardiner
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 Douglas 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 Gardiner
When does frost risk typically end in Gardiner?
The last hard freeze (28°F) in Gardiner typically lands around Feb 23, 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 16.
When is the first frost in Gardiner?
The first hard freeze (28°F) in Gardiner 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 277 days after the spring freeze cleared.
How long is the growing season in Gardiner?
Measured between 28°F hard freezes, Gardiner sees about 277 frost-free days — roughly Feb 23 through Nov 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 16 to Nov 13, about 242 days.
Is the soil safe to grow vegetables in Gardiner?
The federal record around Gardiner shows 58 documented sites, mostly Underground Storage Tanks entries (46), the nearest Underground Storage Tanks record about 0.3 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 Gardiner?
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 Gardiner's scale — its 9a band and its 277-day season. Your yard writes its own version of Gardiner'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 Gardiner’s own scale
4 of the readings below were taken at Gardiner's own scale — the 369 acres it covers and 58 documented sites around it; 6 are borrowed from a wider read, named and linked below.
Measured here
- Gardiner's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 58 documented contamination sites on the federal record near Gardiner, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Gardiner's boundary and the 369 acres inside itUS Census TIGER/Line 2025
- Gardiner sits in the Coast Range — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Gardiner has no normal of its own, so its county's is the closest measured readfrom Douglas County
- Soil character — no town-scale survey exists, so Gardiner's 369 acres read through its county's SSURGO summaryfrom Douglas County
- The candidate plant list — Oregon's curated set, filtered to this zone band and re-ordered by how much margin each has herefrom Oregon
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Douglas 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 Douglas County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Gardiner's 369 acreswhy one lot differs from the next →
- Which side of Gardiner you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 369 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.3 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 Gardiner-wide figureread your own land →
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