Wamic, Oregon, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.
These conditions suit cabbage, pawpaw, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Wamic, 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 Wamic 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 Wamic — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Wamic — the short answer
Wamic, Oregon: USDA zone 7a, about 203 days between hard freezes, across 772 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~203
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 772 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 Wamic's average, not your lot's — a low corner or a tree line moves it. Against Wamic's 203-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Wamic
Each reading below is measured for Wamic itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWamic runs about 203 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
MeasuredWamic 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 Wamic is in
Wamic sits in the Columbia Plateau — EPA Level III, inside the wider North American Deserts. That is read at Wamic's own centroid rather than borrowed from Wasco County.
What Grows in Wamic
Every plant below cleared Wamic's own zone 7a and its 203-day season. Each card opens that plant's Oregon profile. How we score.
Is it too late to plant in Wamic?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 11; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 28 — 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.
Documented around Wamic
Survey cells within 31 miles of Wamic checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 519 miles off. What to watch for.
What's on the federal record near Wamic
Closest first, within ~10 miles of Wamic. Listing isn't leaking, and distance isn't exposure.
- WASCO COUNTY ROAD DEPARTMENTUnderground Storage Tanks · 0.9 mi
- 04.00S/12.00E-11CCNitrate · 1.1 mi
- WAMIC AUTO PARTS AND REPAIRBrownfields · 1.1 mi
- PINE HOLLOW LAKESIDE RESORTUnderground Storage Tanks · 1.6 mi
- DAVIS, JR. IRLUnderground Storage Tanks · 2.1 mi
- BROWN'S GARAGEUnderground Storage Tanks · 2.9 mi
- WHEELON OIL COMPANYUnderground Storage Tanks · 3.7 mi
- TYEE KEY LOCKUnderground Storage Tanks · 4.8 mi
- GVB BIOPHARMA - TYGH VALLEYBrownfields · 6.2 mi
- MOUNTAIN FIR LMBR CO INC/TYGH VALLEY DIVUnderground Storage Tanks · 6.6 mi
- WHITE RIVER STATIONUnderground Storage Tanks · 6.7 mi
- WALTERS, EUGENE HUnderground Storage Tanks · 6.8 mi
1 more site is on the record inside the same radius. See them on the map
Measured from Wamic'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 Wamic.
Severity Distribution
within ~10 miles of Wamic
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 Wamic
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 Wamic average
Your land is one point inside Wamic
Everything above resolves to Wamic as a whole — one PHZM band and one 28°F frost record, read across 772 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 Wamic Average
Wamic Average
- ●USDA Zones 7a, averaged across Wamic
- ●One soil character for all of Wamic
- ●Frost dates read at Wamic's scale: Apr 8 to Oct 28
YOUR Parcel
- ✓Your exact zone, not Wamic's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Wamic
Pull a site-specific report for your exact address in Wamic, Oregon — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Wamic averages can't show:
We read public map data around Wamic — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Wamic average
How we know this about Wamic
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 Wamic’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 Wamic
When does frost risk typically end in Wamic?
The last hard freeze (28°F) in Wamic typically lands around Apr 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 Apr 29.
When is the first frost in Wamic?
The first hard freeze (28°F) in Wamic typically arrives around Oct 28, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 14, so the watching starts about Sep 28 — about 203 days after the spring freeze cleared.
How long is the growing season in Wamic?
Measured between 28°F hard freezes, Wamic sees about 203 frost-free days — roughly Apr 8 through Oct 28, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 29 to Oct 14, about 168 days.
Is the soil safe to grow vegetables in Wamic?
The federal record around Wamic is light — 14 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (10), the nearest Underground Storage Tanks record about 0.9 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 Wamic?
From about Sep 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 Oct 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 Oct 28. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Wamic's scale — its 7a band and its 203-day season. Your yard writes its own version of Wamic'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 Wamic’s own scale
7 of the readings below were taken at Wamic's own scale — its own ~203-day season between 28°F freezes, the 772 acres it covers and 14 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Wamic's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Wamic's own 28°F hard-freeze dates, about Apr 8 and Oct 28 and the ~203-day span between themNOAA 1991–2020 Climate Normals
- 14 documented contamination sites on the federal record near Wamic, the closest Underground Storage Tanks record about 0.9 miles out from the town centreFederal environmental registers
- Wamic's boundary and the 772 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~203-day seasonGrowable Ground crop-matching engine
- The ecoregion at Wamic's own centroid, the Columbia PlateauUS EPA Level III Ecoregions
- Lanternfly survey cells around Wamic checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Wamic's 772 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 Wamic's 772 acreswhy one lot differs from the next →
- Which side of Wamic you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 772 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.9 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 Wamic-wide figureread your own land →