Bonney Lake, Washington, sits in USDA hardiness zone 8b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Reliable performers under these conditions include cabbage, fig, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Bonney Lake, 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 Bonney Lake 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 Bonney Lake — soil, climate, flood, and parcel records. How we handle your address.
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Bonney Lake — the short answer
Bonney Lake, Washington: USDA zone 8b, about 264 days between hard freezes, across 5K acres of city.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 4
- Pierce County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 23
- Pierce County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~264
- Pierce County normal — NOAA 1991–2020, nearest to this town
- City area
- 5K 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 Pierce County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Bonney Lake's average, not your lot's — a low corner or a tree line moves it. Against Bonney Lake's 264-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Bonney Lake
Each reading below is measured for Bonney Lake itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsBonney Lake runs about 264 days between hard freezes (read from Pierce County, the closest normal to Bonney Lake) — 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
MeasuredBonney Lake sits in USDA hardiness zone 8b.
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 Bonney Lake is in
Bonney Lake sits in the Puget Lowland — EPA Level III, inside the wider Marine West Coast Forest. That is read at Bonney Lake's own centroid, and it is not what its county reads: Pierce County is mostly Cascades. The wider page above you is answering a different question about different ground.
What Grows in Bonney Lake
Every plant below cleared Bonney Lake's own zone 8b and its 264-day season. Each card opens that plant's Washington profile. How we score.
Is it too late to plant in Bonney Lake?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 4; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 4 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 23 — 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 Bonney Lake
Closest first, within ~10 miles of Bonney Lake. Listing isn't leaking, and distance isn't exposure.
- CENTURYLINK QCUnderground Storage Tanks · 0.6 mi
- BONNEY LAKE CITY OFUnderground Storage Tanks · 0.7 mi
- 20N/05E-28N01Nitrate · 1.3 mi
- BONNEY LAKE WATER DEPARTMENT CITYPFAS · 1.5 mi
- TIM CORLISS SONUnderground Storage Tanks · 1.6 mi
- JB BONNEY LAKE MARTUnderground Storage Tanks · 1.8 mi
- PETCO 1238Brownfields · 1.9 mi
- COSTCO WHOLESALE #1278Brownfields · 1.9 mi
- TARGET STORE 1957Brownfields · 2.0 mi
- CVS PHARMACY 17073Brownfields · 2.0 mi
- CHEVRON STATION 207051Underground Storage Tanks · 2.0 mi
- CHEVRON 207051Brownfields · 2.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Bonney Lake'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 Bonney Lake.
Sources Checked
within ~10 miles of Bonney Lake
Severity Distribution
within ~10 miles of Bonney Lake
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Bonney Lake, two things run higher than the national average within ~10 miles of Bonney Lake — PFAS (14 sites) and CAFO (10 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Check your specific parcel in Bonney Lake
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 Bonney Lake average
Your land is one point inside Bonney Lake
Everything above resolves to Bonney Lake as a whole — one PHZM band, read across 5K acres, with hard-freeze dates borrowed from Pierce 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 Bonney Lake Average
Bonney Lake Average
- ●USDA Zones 8b, averaged across Bonney Lake
- ●One soil character for all of Bonney Lake
- ●Frost dates read at Bonney Lake's scale: Mar 4 to Nov 23
YOUR Parcel
- ✓Your exact zone, not Bonney Lake's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Bonney Lake
Pull a site-specific report for your exact address in Bonney Lake, Washington — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Bonney Lake averages can't show:
We read public map data around Bonney Lake — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Bonney Lake average
How we know this about Bonney Lake
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 Pierce 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 Bonney Lake
When does frost risk typically end in Bonney Lake?
The last hard freeze (28°F) in Bonney Lake typically lands around Mar 4, 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 25.
When is the first frost in Bonney Lake?
The first hard freeze (28°F) in Bonney Lake typically arrives around Nov 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 9, so the watching starts about Oct 24 — about 264 days after the spring freeze cleared.
How long is the growing season in Bonney Lake?
Measured between 28°F hard freezes, Bonney Lake sees about 264 frost-free days — roughly Mar 4 through Nov 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 25 to Nov 9, about 229 days.
Is the soil safe to grow vegetables in Bonney Lake?
The federal record around Bonney Lake runs heavier than most — 1,106 documented sites, mostly Underground Storage Tanks entries (630), the nearest Underground Storage Tanks record about 0.6 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Bonney Lake?
From about Oct 24 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 23 (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 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Bonney Lake's scale — its 8b band and its 264-day season. Your yard writes its own version of Bonney Lake'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 Bonney Lake’s own scale
5 of the readings below were taken at Bonney Lake's own scale — the 5,260 acres it covers and 1,106 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Bonney Lake's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 1,106 documented contamination sites on the federal record near Bonney Lake, the closest Underground Storage Tanks record about 0.6 miles out from the town centreFederal environmental registers
- Bonney Lake's boundary and the 5,260 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~264-day seasonGrowable Ground crop-matching engine
- Bonney Lake sits in the Puget Lowland — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Bonney Lake has no normal of its own, so its county's is the closest measured readfrom Pierce County
- Soil character — no town-scale survey exists, so Bonney Lake's 5,260 acres read through its county's SSURGO summaryfrom Pierce County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Pierce 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 Pierce County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Bonney Lake's 5,260 acreswhy one lot differs from the next →
- Which side of Bonney Lake you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,260 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.6 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 Bonney Lake-wide figureread your own land →
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