Pine Grove, Oregon, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Growers here do well with cabbage, pawpaw, california poppy, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Pine Grove, 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 Pine Grove 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 Pine Grove — soil, climate, flood, and parcel records. How we handle your address.
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Pine Grove — the short answer
Pine Grove, Oregon: USDA zone 7a, about 191 days between hard freezes, across 4K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~191
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 4K 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 7a is Pine Grove's average, not your lot's — a low corner or a tree line moves it. Against Pine Grove's 191-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Pine Grove
Each reading below is measured for Pine Grove itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredPine Grove runs about 191 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredPine Grove sits in USDA hardiness zone 7a.
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 Pine Grove is in
Pine Grove sits in the Columbia Plateau — EPA Level III, inside the wider North American Deserts. That is read at Pine Grove's own centroid rather than borrowed from Wasco County.
What Grows in Pine Grove
Every plant below cleared Pine Grove's own zone 7a and its 191-day season. Each card opens that plant's Oregon profile. How we score.
Is it too late to plant in Pine Grove?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 22; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 19 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 27 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
What's on the federal record near Pine Grove
Closest first, within ~10 miles of Pine Grove. Listing isn't leaking, and distance isn't exposure.
- OR STATE HWY 4-9 MAUPINUnderground Storage Tanks · 2.0 mi
- WALTERS, EUGENE HUnderground Storage Tanks · 6.0 mi
- USDA USFS R06 MT HOOD NF BEAR SPRINGS RGR STABrownfields · 6.8 mi
- WASCO COUNTY ROAD DEPARTMENTUnderground Storage Tanks · 8.6 mi
- BROWN'S GARAGEUnderground Storage Tanks · 8.7 mi
- WAMIC AUTO PARTS AND REPAIRBrownfields · 8.9 mi
- 04.00S/12.00E-11CCNitrate · 9.0 mi
- PINE HOLLOW LAKESIDE RESORTUnderground Storage Tanks · 9.9 mi
- DAVIS, JR. IRLUnderground Storage Tanks · 10.0 mi
Measured from Pine Grove'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 Pine Grove.
Sources Checked
within ~10 miles of Pine Grove
Severity Distribution
within ~10 miles of Pine Grove
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Pine Grove
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 Pine Grove average
Your land is one point inside Pine Grove
Everything above resolves to Pine Grove as a whole — one PHZM band and one 28°F frost record, read across 4K 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 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 Pine Grove Average
Pine Grove Average
- ●USDA Zones 7a, averaged across Pine Grove
- ●One soil character for all of Pine Grove
- ●Frost dates read at Pine Grove's scale: Apr 19 to Oct 27
YOUR Parcel
- ✓Your exact zone, not Pine Grove's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Pine Grove
Pull a site-specific report for your exact address in Pine Grove, Oregon — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Pine Grove averages can't show:
We read public map data around Pine Grove — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Pine Grove average
How we know this about Pine Grove
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 Pine Grove’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 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 Pine Grove
When does frost risk typically end in Pine Grove?
The last hard freeze (28°F) in Pine Grove typically lands around Apr 19, 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 May 10.
When is the first frost in Pine Grove?
The first hard freeze (28°F) in Pine Grove typically arrives around Oct 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 13, so the watching starts about Sep 27 — about 191 days after the spring freeze cleared.
How long is the growing season in Pine Grove?
Measured between 28°F hard freezes, Pine Grove sees about 191 frost-free days — roughly Apr 19 through Oct 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 10 to Oct 13, about 156 days.
Is the soil safe to grow vegetables in Pine Grove?
The federal record around Pine Grove is light — 10 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (6), the nearest Underground Storage Tanks record about 2.0 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do I protect my plants from frost in Pine Grove?
From about Sep 27 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 Oct 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 Oct 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Pine Grove's scale — its 7a band and its 191-day season. Your yard writes its own version of Pine Grove'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 Pine Grove’s own scale
6 of the readings below were taken at Pine Grove's own scale — its own ~191-day season between 28°F freezes, the 3,859 acres it covers and 10 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Pine Grove's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Pine Grove's own 28°F hard-freeze dates, about Apr 19 and Oct 27 and the ~191-day span between themNOAA 1991–2020 Climate Normals
- 10 documented contamination sites on the federal record near Pine Grove, the closest Underground Storage Tanks record about 2.0 miles out from the town centreFederal environmental registers
- Pine Grove's boundary and the 3,859 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~191-day seasonGrowable Ground crop-matching engine
- The ecoregion at Pine Grove's own centroid, the Columbia PlateauUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Pine Grove's 3,859 acres read through its county's SSURGO summaryfrom Wasco County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Wasco 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 Wasco County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Pine Grove's 3,859 acreswhy one lot differs from the next →
- Which side of Pine Grove you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,859 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 2.0 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 Pine Grove-wide figureread your own land →