LaCrosse, Washington, sits in USDA hardiness zone 6b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Well-matched crops include cabbage, hazelnut, lavender, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in LaCrosse, 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 LaCrosse 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 LaCrosse — soil, climate, flood, and parcel records. How we handle your address.
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LaCrosse — the short answer
LaCrosse, Washington: USDA zone 6b, about 202 days between hard freezes, across 547 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 6
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~202
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 547 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 6b is LaCrosse's average, not your lot's — a low corner or a tree line moves it. Against LaCrosse's 202-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in LaCrosse
Each reading below is measured for LaCrosse itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLaCrosse runs about 202 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
MeasuredLaCrosse sits in USDA hardiness zone 6b.
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 LaCrosse is in
LaCrosse sits in the Columbia Plateau — EPA Level III, inside the wider North American Deserts. That is read at LaCrosse's own centroid rather than borrowed from Whitman County.
What Grows in LaCrosse
Every plant below cleared LaCrosse's own zone 6b and its 202-day season. Each card opens that plant's Washington profile. How we score.
Is it too late to plant in LaCrosse?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 9; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 6 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 25 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
What's on the federal record near LaCrosse
Closest first, within ~10 miles of LaCrosse. Listing isn't leaking, and distance isn't exposure.
- UPRR LACROSSUnderground Storage Tanks · 2.0 mi
- LACROSS SECTION TOOL HOUSEUnderground Storage Tanks · 2.1 mi
- SNAKE RIVER RANCHES INCUnderground Storage Tanks · 2.1 mi
- WHITMAN COUNTY ROAD DEPTUnderground Storage Tanks · 2.1 mi
- MCGREGOR CO LA CROSSEUnderground Storage Tanks · 2.1 mi
- WA DOT LACROSSEUnderground Storage Tanks · 2.1 mi
- LACROSSE SCHOOL DISTRICT BUS GARAGEUnderground Storage Tanks · 2.2 mi
- T & S TIRE & SERVICEUnderground Storage Tanks · 2.2 mi
- 15N/39E-02Q01 SU13Nitrate · 2.3 mi
- BENGE PRINT 379 LINE SEGMENT 047Underground Storage Tanks · 6.1 mi
- DEAN WHITMANUnderground Storage Tanks · 6.1 mi
- BENGE SCHOOL DISTRICT 122Underground Storage Tanks · 6.1 mi
3 more sites are on the record inside the same radius. See them on the map
Measured from LaCrosse'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 LaCrosse.
Severity Distribution
within ~10 miles of LaCrosse
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in LaCrosse
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 LaCrosse average
Your land is one point inside LaCrosse
Everything above resolves to LaCrosse as a whole — one PHZM band and one 28°F frost record, read across 547 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 LaCrosse Average
LaCrosse Average
- ●USDA Zones 6b, averaged across LaCrosse
- ●One soil character for all of LaCrosse
- ●Frost dates read at LaCrosse's scale: Apr 6 to Oct 25
YOUR Parcel
- ✓Your exact zone, not LaCrosse's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in LaCrosse
Pull a site-specific report for your exact address in LaCrosse, Washington — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that LaCrosse averages can't show:
We read public map data around LaCrosse — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the LaCrosse average
How we know this about LaCrosse
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 LaCrosse’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 LaCrosse
When does frost risk typically end in LaCrosse?
The last hard freeze (28°F) in LaCrosse typically lands around Apr 6, 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 27.
When is the first frost in LaCrosse?
The first hard freeze (28°F) in LaCrosse typically arrives around Oct 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 11, so the watching starts about Sep 25 — about 202 days after the spring freeze cleared.
How long is the growing season in LaCrosse?
Measured between 28°F hard freezes, LaCrosse sees about 202 frost-free days — roughly Apr 6 through Oct 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 27 to Oct 11, about 167 days.
Is the soil safe to grow vegetables in LaCrosse?
The federal record around LaCrosse is light — 16 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (14), 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 LaCrosse?
From about Sep 25 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 25 (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 25. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at LaCrosse's scale — its 6b band and its 202-day season. Your yard writes its own version of LaCrosse'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 LaCrosse’s own scale
6 of the readings below were taken at LaCrosse's own scale — its own ~202-day season between 28°F freezes, the 547 acres it covers and 16 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- LaCrosse's own USDA hardiness band, zones 6bUSDA PHZM 2023
- LaCrosse's own 28°F hard-freeze dates, about Apr 6 and Oct 25 and the ~202-day span between themNOAA 1991–2020 Climate Normals
- 16 documented contamination sites on the federal record near LaCrosse, the closest Underground Storage Tanks record about 2.0 miles out from the town centreFederal environmental registers
- LaCrosse's boundary and the 547 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~202-day seasonGrowable Ground crop-matching engine
- The ecoregion at LaCrosse's own centroid, the Columbia PlateauUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so LaCrosse's 547 acres read through its county's SSURGO summaryfrom Whitman County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Whitman 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 Whitman County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among LaCrosse's 547 acreswhy one lot differs from the next →
- Which side of LaCrosse you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 547 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 LaCrosse-wide figureread your own land →