South Lake Tahoe, California, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Growers here do well with okra, blackberry, california poppy, and pumpkin — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in South Lake Tahoe, 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 South Lake Tahoe 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 South Lake Tahoe — soil, climate, flood, and parcel records. How we handle your address.
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South Lake Tahoe — the short answer
South Lake Tahoe, California: USDA zone 6b, about 115 days between hard freezes, across 6K acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Jun 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~115
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 6K 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 South Lake Tahoe's average, not your lot's — a low corner or a tree line moves it. Against South Lake Tahoe's 115-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in South Lake Tahoe
Each reading below is measured for South Lake Tahoe itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSouth Lake Tahoe runs about 115 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
MeasuredSouth Lake Tahoe 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 South Lake Tahoe is in
South Lake Tahoe sits in the Sierra Nevada — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at South Lake Tahoe's own centroid rather than borrowed from El Dorado County.
What Grows in South Lake Tahoe
Every plant below cleared South Lake Tahoe's own zone 6b and its 115-day season. Each card opens that plant's California profile. How we score.
Is it too late to plant in South Lake Tahoe?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around May 4; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Jun 1 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 24 — long-season crops need about 90 days of runway, quick greens only 30. Short seasons reward decisiveness — quick-maturing varieties late, hardy greens under cover, and next year’s garlic in the ground before it closes.
What's on the federal record near South Lake Tahoe
Closest first, within ~10 miles of South Lake Tahoe. Listing isn't leaking, and distance isn't exposure.
- LAKE TAHOE BOAT COBrownfields · 300 ft
- AHERN RENTALS INCBrownfields · 350 ft
- 090 N12 E18 03BCC 1Nitrate · 400 ft
- PETE LILLY`S FIRESTONEBrownfields · 800 ft
- LILLY'S TIRE SERVICEBrownfields · 800 ft
- AMERICAN GASUnderground Storage Tanks · 800 ft
- AMERICAN GASOLINE KDS ETCBrownfields · 850 ft
- CALTRANS DIST 3 ECHO SUMMIT SITEBrownfields · 900 ft
- PACIFIC BELLBrownfields · 900 ft
- 7-ELEVEN #15047Brownfields · 950 ft
- SILVER HAWK VENTURES INC DBA CHRISTENSEN AUTOMOTIVE OF SO LAKE TAHOEBrownfields · 1100 ft
- AUTOZONE #6201Brownfields · 1300 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from South Lake Tahoe'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 South Lake Tahoe.
Total Sites
525
within ~10 miles of South Lake Tahoe
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of South Lake Tahoe
Severity Distribution
within ~10 miles of South Lake Tahoe
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around South Lake Tahoe, Nitrate runs higher than the national average — 238 sites within ~10 miles of South Lake Tahoe. That's not a problem with your land — it's information about it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in South Lake Tahoe
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 South Lake Tahoe average
Your land is one point inside South Lake Tahoe
Everything above resolves to South Lake Tahoe as a whole — one PHZM band and one 28°F frost record, read across 6K 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 South Lake Tahoe Average
South Lake Tahoe Average
- ●USDA Zones 6b, averaged across South Lake Tahoe
- ●One soil character for all of South Lake Tahoe
- ●Frost dates read at South Lake Tahoe's scale: Jun 1 to Sep 24
YOUR Parcel
- ✓Your exact zone, not South Lake Tahoe's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in South Lake Tahoe
Pull a site-specific report for your exact address in South Lake Tahoe, California — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that South Lake Tahoe averages can't show:
We read public map data around South Lake Tahoe — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the South Lake Tahoe average
How we know this about South Lake Tahoe
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 South Lake Tahoe’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 South Lake Tahoe
When does frost risk typically end in South Lake Tahoe?
The last hard freeze (28°F) in South Lake Tahoe typically lands around Jun 1, 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 22.
When is the first frost in South Lake Tahoe?
The first hard freeze (28°F) in South Lake Tahoe typically arrives around Sep 24, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 10, so the watching starts about Aug 25 — about 115 days after the spring freeze cleared.
How long is the growing season in South Lake Tahoe?
Measured between 28°F hard freezes, South Lake Tahoe sees about 115 frost-free days — roughly Jun 1 through Sep 24, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 22 to Sep 10, about 80 days.
Is the soil safe to grow vegetables in South Lake Tahoe?
The federal record around South Lake Tahoe is a meaningful one — 525 documented sites, mostly Nitrate entries (238), the nearest Brownfields record under a tenth of a mile 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 South Lake Tahoe?
With about 115 frost-free days between hard freezes, South Lake Tahoe 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 143 to 171 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the Jun 1 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at South Lake Tahoe's scale — its 6b band and its 115-day season. Your yard writes its own version of South Lake Tahoe'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 South Lake Tahoe’s own scale
6 of the readings below were taken at South Lake Tahoe's own scale — its own ~115-day season between 28°F freezes, the 6,444 acres it covers and 525 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- South Lake Tahoe's own USDA hardiness band, zones 6bUSDA PHZM 2023
- South Lake Tahoe's own 28°F hard-freeze dates, about Jun 1 and Sep 24 and the ~115-day span between themNOAA 1991–2020 Climate Normals
- 525 documented contamination sites on the federal record near South Lake Tahoe, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- South Lake Tahoe's boundary and the 6,444 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~115-day seasonGrowable Ground crop-matching engine
- The ecoregion at South Lake Tahoe's own centroid, the Sierra NevadaUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so South Lake Tahoe's 6,444 acres read through its county's SSURGO summaryfrom El Dorado County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom El Dorado 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 El Dorado County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among South Lake Tahoe's 6,444 acreswhy one lot differs from the next →
- Which side of South Lake Tahoe you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 6,444 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record under a tenth of a mile 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 South Lake Tahoe-wide figureread your own land →
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