North Bonneville, Washington, sits in USDA hardiness zone 9a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Among the crops suited to this profile: artichoke, fig, california poppy, and cabbage. The site-level story — soil, sun, drainage — decides the rest.
Even in North Bonneville, 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 North Bonneville 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 North Bonneville — soil, climate, flood, and parcel records. How we handle your address.
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North Bonneville — the short answer
North Bonneville, Washington: USDA zone 9a, about 282 days between hard freezes, across 2K acres of city.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~282
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 2K 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 9a is North Bonneville's average, not your lot's — a low corner or a tree line moves it. Against North Bonneville's 282-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in North Bonneville
Each reading below is measured for North Bonneville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredNorth Bonneville runs about 282 days between hard freezes — 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
MeasuredNorth Bonneville 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 North Bonneville is in
North Bonneville sits in the Cascades — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at North Bonneville's own centroid rather than borrowed from Skamania County.
What Grows in North Bonneville
Every plant below cleared North Bonneville's own zone 9a and its 282-day season. Each card opens that plant's Washington profile. How we score.
Is it too late to plant in North Bonneville?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Jan 24; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 21 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 30 — long-season crops need about 90 days of runway, quick greens only 30. Here the calendar nearly circles: cool-season crops take the winter shift, and the next window is always close.
Documented around North Bonneville
Survey cells within 31 miles of North Bonneville checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 546 miles off. What to watch for.
What's on the federal record near North Bonneville
Closest first, within ~10 miles of North Bonneville. Listing isn't leaking, and distance isn't exposure.
- NORTH BONNEVILLE CITY OFUnderground Storage Tanks · 700 ft
- FT RAINSUnderground Storage Tanks · 900 ft
- NORTH BONNEVILLE FOOD MARTUnderground Storage Tanks · 1400 ft
- STEVENSON TEXACOUnderground Storage Tanks · 1500 ft
- SKAMANIA COUNTY PORTUnderground Storage Tanks · 1700 ft
- INTERIM INDUSTRIAL BLDGUnderground Storage Tanks · 1900 ft
- HAMILTON ISLAND LANDFILL (USA/COE)Superfund · 1.0 mi
- UNION PACIFIC RR - BONNEVILLE SECTIONUnderground Storage Tanks · 1.0 mi
- UNION PACIFIC RR - BRIDAL VEIL SECTIONUnderground Storage Tanks · 1.0 mi
- BONNEVILLE DAM USACESuperfund · 1.1 mi
- BONNEVILLE DAM USACEBrownfields · 1.1 mi
- BONNEVILLE DAMUnderground Storage Tanks · 1.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from North Bonneville'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 North Bonneville.
Total Sites
52
within ~10 miles of North Bonneville
Risk Level
Elevated
Highest-severity
3 Superfund sites
Sources Checked
within ~10 miles of North Bonneville
Severity Distribution
within ~10 miles of North Bonneville
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around North Bonneville, two things run higher than the national average within ~10 miles of North Bonneville — Superfund (3 sites) and Underground Storage Tanks (45 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in North Bonneville
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 North Bonneville average
Your land is one point inside North Bonneville
Everything above resolves to North Bonneville as a whole — one PHZM band and one 28°F frost record, read across 2K 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 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 North Bonneville Average
North Bonneville Average
- ●USDA Zones 9a, averaged across North Bonneville
- ●One soil character for all of North Bonneville
- ●Frost dates read at North Bonneville's scale: Feb 21 to Nov 30
YOUR Parcel
- ✓Your exact zone, not North Bonneville's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in North Bonneville
Pull a site-specific report for your exact address in North Bonneville, Washington — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that North Bonneville averages can't show:
We read public map data around North Bonneville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the North Bonneville average
How we know this about North Bonneville
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 North Bonneville’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 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 North Bonneville
When does frost risk typically end in North Bonneville?
The last hard freeze (28°F) in North Bonneville typically lands around Feb 21, 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 14.
When is the first frost in North Bonneville?
The first hard freeze (28°F) in North Bonneville typically arrives around Nov 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 16, so the watching starts about Oct 31 — about 282 days after the spring freeze cleared.
How long is the growing season in North Bonneville?
Measured between 28°F hard freezes, North Bonneville sees about 282 frost-free days — roughly Feb 21 through Nov 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 14 to Nov 16, about 247 days.
Is the soil safe to grow vegetables in North Bonneville?
The federal record around North Bonneville is a meaningful one — 52 documented sites, mostly Underground Storage Tanks entries (45), the nearest Underground Storage Tanks 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 North Bonneville?
From about Oct 31 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 30 (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 30. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at North Bonneville's scale — its 9a band and its 282-day season. Your yard writes its own version of North Bonneville'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 North Bonneville’s own scale
7 of the readings below were taken at North Bonneville's own scale — its own ~282-day season between 28°F freezes, the 1,616 acres it covers and 52 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- North Bonneville's own USDA hardiness band, zones 9aUSDA PHZM 2023
- North Bonneville's own 28°F hard-freeze dates, about Feb 21 and Nov 30 and the ~282-day span between themNOAA 1991–2020 Climate Normals
- 52 documented contamination sites on the federal record near North Bonneville, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- North Bonneville's boundary and the 1,616 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~282-day seasonGrowable Ground crop-matching engine
- The ecoregion at North Bonneville's own centroid, the CascadesUS EPA Level III Ecoregions
- Lanternfly survey cells around North Bonneville 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 North Bonneville's 1,616 acres read through its county's SSURGO summaryfrom Skamania County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Skamania County
- The growing challenges every Washington grower plans around — written at state scale, so they stay on the state guidefrom Washington
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Skamania County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among North Bonneville's 1,616 acreswhy one lot differs from the next →
- Which side of North Bonneville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,616 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 North Bonneville-wide figureread your own land →