Gold Mountain, California, 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.
On paper, cabbage, blackberry, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Gold Mountain, 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 Gold Mountain 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 Gold Mountain — soil, climate, flood, and parcel records. How we handle your address.
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Gold Mountain — the short answer
Gold Mountain, California: USDA zone 6b, about 155 days between hard freezes, across 4K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 17
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~155
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 4K 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 Gold Mountain's average, not your lot's — a low corner or a tree line moves it. Against Gold Mountain's 155-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Gold Mountain
Each reading below is measured for Gold Mountain itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredGold Mountain runs about 155 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals

Winter hardiness
MeasuredGold Mountain 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 Gold Mountain is in
Gold Mountain sits in the Sierra Nevada — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Gold Mountain's own centroid rather than borrowed from Plumas County.
What Grows in Gold Mountain
Every plant below cleared Gold Mountain's own zone 6b and its 155-day season. Each card opens that plant's California profile. How we score.






























Is it too late to plant in Gold Mountain?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Apr 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 17 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
What's on the federal record near Gold Mountain
Closest first, within ~10 miles of Gold Mountain. Listing isn't leaking, and distance isn't exposure.
- Big Mohawk MineMining · 1.7 mi
- ValentineMining · 2.9 mi
- PLUMAS-SIERRA RECBrownfields · 3.0 mi
- PLUMAS COUNTY - PUBLIC WORKSBrownfields · 3.0 mi
- RIGGS & SMITH ENTERPRISES INC DBA SIERRA GARAGEBrownfields · 3.2 mi
- DAVID LEE HUMPHREY/DBA CRESCENT TOWBrownfields · 3.2 mi
- COATES INC DBA COATES TIRE CENTER ALSO LES SCHWAB TIRE CENTERBrownfields · 3.2 mi
- 023N013E34Q001MNitrate · 3.3 mi
- WHITEHAWK RANCHBrownfields · 3.3 mi
- HUNT & SONS LLCBrownfields · 3.4 mi
- WHGC VENTURE LLC DBA WHITEHAWK RANCH GOLF CLUBBrownfields · 3.4 mi
- WHITE CAP READY MIX INCBrownfields · 3.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Gold Mountain'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 Gold Mountain.
Total Sites
58
within ~10 miles of Gold Mountain
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Gold Mountain
Severity Distribution
within ~10 miles of Gold Mountain
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Gold Mountain, two things run higher than the national average within ~10 miles of Gold Mountain — Mining (7 sites) and Brownfields (42 sites). That's not a problem with your land — it's information about it.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Gold Mountain
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 Gold Mountain average
Your land is one point inside Gold Mountain
Everything above resolves to Gold Mountain as a whole — one PHZM band and one 28°F frost record, read across 4K 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 Gold Mountain Average
Gold Mountain Average
- ●USDA Zones 6b, averaged across Gold Mountain
- ●One soil character for all of Gold Mountain
- ●Frost dates read at Gold Mountain's scale: May 15 to Oct 17
YOUR Parcel
- ✓Your exact zone, not Gold Mountain's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Gold Mountain
Pull a site-specific report for your exact address in Gold Mountain, California — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Gold Mountain averages can't show:
We read public map data around Gold Mountain — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Gold Mountain average
How we know this about Gold Mountain
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 Gold Mountain’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 Gold Mountain
When does frost risk typically end in Gold Mountain?
The last hard freeze (28°F) in Gold Mountain typically lands around May 15, 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 5.
When is the first frost in Gold Mountain?
The first hard freeze (28°F) in Gold Mountain typically arrives around Oct 17, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 3, so the watching starts about Sep 17 — about 155 days after the spring freeze cleared.
How long is the growing season in Gold Mountain?
Measured between 28°F hard freezes, Gold Mountain sees about 155 frost-free days — roughly May 15 through Oct 17, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 5 to Oct 3, about 120 days.
Is the soil safe to grow vegetables in Gold Mountain?
The federal record around Gold Mountain is a meaningful one — 58 documented sites, mostly Brownfields entries (42), the nearest Mining record about 1.7 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 Gold Mountain?
From about Sep 17 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 17 (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 17. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Gold Mountain's scale — its 6b band and its 155-day season. Your yard writes its own version of Gold Mountain'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 Gold Mountain’s own scale
6 of the readings below were taken at Gold Mountain's own scale — its own ~155-day season between 28°F freezes, the 3,896 acres it covers and 58 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Gold Mountain's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Gold Mountain's own 28°F hard-freeze dates, about May 15 and Oct 17 and the ~155-day span between themNOAA 1991–2020 Climate Normals
- 58 documented contamination sites on the federal record near Gold Mountain, the closest Mining record about 1.7 miles out from the town centreFederal environmental registers
- Gold Mountain's boundary and the 3,896 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~155-day seasonGrowable Ground crop-matching engine
- The ecoregion at Gold Mountain's own centroid, the Sierra NevadaUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Gold Mountain's 3,896 acres read through its county's SSURGO summaryfrom Plumas County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Plumas 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 Plumas County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Gold Mountain's 3,896 acreswhy one lot differs from the next →
- Which side of Gold Mountain you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,896 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Mining record about 1.7 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 Gold Mountain-wide figureread your own land →
