Walker, California, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Well-matched crops include cabbage, blackberry, california poppy, 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 Walker, 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 Walker 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 Walker — soil, climate, flood, and parcel records. How we handle your address.
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Walker — the short answer
Walker, California: USDA zone 7a, about 143 days between hard freezes, across 8K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~143
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 8K 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 Walker's average, not your lot's — a low corner or a tree line moves it. Against Walker's 143-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Walker
Each reading below is measured for Walker itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWalker runs about 143 days between hard freezes — a short growing season.
Long-maturing crops like melons, sweet potatoes, and winter squash can run out of runway before the first hard freeze, ripening late or not at all.
Lead with fast-maturing varieties, and stretch the season on both ends with cold frames, low tunnels, or a greenhouse.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredWalker 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 Walker is in
Walker sits in the Central Basin and Range — EPA Level III, inside the wider North American Deserts. That is read at Walker's own centroid rather than borrowed from Mono County.
What Grows in Walker
Every plant below cleared Walker's own zone 7a and its 143-day season. Each card opens that plant's California profile. How we score.
Is it too late to plant in Walker?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Apr 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 18 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 8 — long-season crops need about 90 days of runway, quick greens only 30. Even here the calendar’s edges hold value: thirty-day greens late in the window, then garlic and a rested bed for spring.
What's on the federal record near Walker
Closest first, within ~10 miles of Walker. Listing isn't leaking, and distance isn't exposure.
- Walker Country StoreUnderground Storage Tanks · 2300 ft
- BRIDGEPORT COLONY DEVELOPMENT CORP DBA WALKER COUNTRY STOREBrownfields · 2400 ft
- T & M AUTOMOTIVEBrownfields · 2500 ft
- Al Mono MineMining · 1.9 mi
- WALKER TRANSFER STATION/LANDFILLBrownfields · 2.7 mi
- Contact MineMining · 3.3 mi
- Al MonoMining · 3.9 mi
- Nw Section 33 ProspectsMining · 6.5 mi
- Coleville AreaMining · 6.5 mi
- Ne Section 33 ProspectsMining · 7.0 mi
- CassonMining · 7.0 mi
- Sections 27 and 34 ProspectsMining · 7.4 mi
5 more sites are on the record inside the same radius. See them on the map
Measured from Walker'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 Walker.
Severity Distribution
within ~10 miles of Walker
Highest-Severity Sites
Know Before You Grow
- •Mine waste leaches heavy metals. Test for lead, arsenic and cadmium before growing food here.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
Check your specific parcel in Walker
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 Walker average
Your land is one point inside Walker
Everything above resolves to Walker as a whole — one PHZM band and one 28°F frost record, read across 8K 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 Walker Average
Walker Average
- ●USDA Zones 7a, averaged across Walker
- ●One soil character for all of Walker
- ●Frost dates read at Walker's scale: May 18 to Oct 8
YOUR Parcel
- ✓Your exact zone, not Walker's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Walker
Pull a site-specific report for your exact address in Walker, California — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Walker averages can't show:
We read public map data around Walker — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Walker average
How we know this about Walker
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 Walker’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 Walker
When does frost risk typically end in Walker?
The last hard freeze (28°F) in Walker typically lands around May 18, 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 Jun 8.
When is the first frost in Walker?
The first hard freeze (28°F) in Walker typically arrives around Oct 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 24, so the watching starts about Sep 8 — about 143 days after the spring freeze cleared.
How long is the growing season in Walker?
Measured between 28°F hard freezes, Walker sees about 143 frost-free days — roughly May 18 through Oct 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 8 to Sep 24, about 108 days.
Is the soil safe to grow vegetables in Walker?
The federal record around Walker is a meaningful one — 19 documented sites, mostly Mining entries (15), the nearest Underground Storage Tanks record about 0.4 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 gardeners stretch the season in Walker?
With about 143 frost-free days between hard freezes, Walker rewards the classic extension moves: floating row cover buys roughly two to four extra weeks at each shoulder — on this season that is a working window nearer 171 to 199 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 18 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Walker's scale — its 7a band and its 143-day season. Your yard writes its own version of Walker'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 Walker’s own scale
6 of the readings below were taken at Walker's own scale — its own ~143-day season between 28°F freezes, the 7,777 acres it covers and 19 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Walker's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Walker's own 28°F hard-freeze dates, about May 18 and Oct 8 and the ~143-day span between themNOAA 1991–2020 Climate Normals
- 19 documented contamination sites on the federal record near Walker, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Walker's boundary and the 7,777 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~143-day seasonGrowable Ground crop-matching engine
- The ecoregion at Walker's own centroid, the Central Basin and RangeUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Walker's 7,777 acres read through its county's SSURGO summaryfrom Mono County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Mono County
- The growing challenges every California grower plans around — written at state scale, so they stay on the state guidefrom California
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Mono County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Walker's 7,777 acreswhy one lot differs from the next →
- Which side of Walker you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 7,777 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Walker-wide figureread your own land →