Topaz Ranch Estates, Nevada, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.
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 Topaz Ranch Estates, 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 Topaz Ranch Estates 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 Topaz Ranch Estates — soil, climate, flood, and parcel records. How we handle your address.
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Topaz Ranch Estates — the short answer
Topaz Ranch Estates, Nevada: USDA zone 7a, about 159 days between hard freezes, across 9K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~159
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 9K 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 Topaz Ranch Estates's average, not your lot's — a low corner or a tree line moves it. Against Topaz Ranch Estates's 159-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Topaz Ranch Estates
Each reading below is measured for Topaz Ranch Estates itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredTopaz Ranch Estates runs about 159 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
MeasuredTopaz Ranch Estates 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 Topaz Ranch Estates is in
Topaz Ranch Estates sits in the Central Basin and Range — EPA Level III, inside the wider North American Deserts. That is read at Topaz Ranch Estates's own centroid rather than borrowed from Douglas County.
What Grows in Topaz Ranch Estates
Every plant below cleared Topaz Ranch Estates's own zone 7a and its 159-day season. Each card opens that plant's Nevada profile. How we score.
Is it too late to plant in Topaz Ranch Estates?
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 Apr 10; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 14 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
What's on the federal record near Topaz Ranch Estates
Closest first, within ~10 miles of Topaz Ranch Estates. Listing isn't leaking, and distance isn't exposure.
- 106 N10 E22 15ADBB1Nitrate · 1200 ft
- Topaz Ranch Est VFD Fire StationUnderground Storage Tanks · 2300 ft
- 106 N10 E22 15DCB 1Nitrate · 0.7 mi
- Sleeping Elephant RanchUnderground Storage Tanks · 1.2 mi
- A and C MineMining · 2.3 mi
- Unnamed MineMining · 2.4 mi
- Carbonate Hills Lead ProspectMining · 2.5 mi
- High JacksMining · 2.5 mi
- 106 N10 E22 28DD 2 Douglas County - MarinaNitrate · 2.9 mi
- 106 N10 E22 29BBDB2Nitrate · 3.3 mi
- 106 N10 E22 29BDDD1Nitrate · 3.3 mi
- 106 N10 E22 29BDDC1Nitrate · 3.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Topaz Ranch Estates'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 Topaz Ranch Estates.
Sources Checked
within ~10 miles of Topaz Ranch Estates
Severity Distribution
within ~10 miles of Topaz Ranch Estates
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Topaz Ranch Estates, two things run higher than the national average within ~10 miles of Topaz Ranch Estates — Mining (40 sites) and Nitrate (56 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around 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.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Topaz Ranch Estates
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 Topaz Ranch Estates average
Your land is one point inside Topaz Ranch Estates
Everything above resolves to Topaz Ranch Estates as a whole — one PHZM band and one 28°F frost record, read across 9K 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 Topaz Ranch Estates Average
Topaz Ranch Estates Average
- ●USDA Zones 7a, averaged across Topaz Ranch Estates
- ●One soil character for all of Topaz Ranch Estates
- ●Frost dates read at Topaz Ranch Estates's scale: May 8 to Oct 14
YOUR Parcel
- ✓Your exact zone, not Topaz Ranch Estates's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Topaz Ranch Estates
Pull a site-specific report for your exact address in Topaz Ranch Estates, Nevada — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Topaz Ranch Estates averages can't show:
We read public map data around Topaz Ranch Estates — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Topaz Ranch Estates average
How we know this about Topaz Ranch Estates
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 Topaz Ranch Estates’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 Topaz Ranch Estates
When does frost risk typically end in Topaz Ranch Estates?
The last hard freeze (28°F) in Topaz Ranch Estates typically lands around May 8, 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 May 29.
When is the first frost in Topaz Ranch Estates?
The first hard freeze (28°F) in Topaz Ranch Estates typically arrives around Oct 14, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 30, so the watching starts about Sep 14 — about 159 days after the spring freeze cleared.
How long is the growing season in Topaz Ranch Estates?
Measured between 28°F hard freezes, Topaz Ranch Estates sees about 159 frost-free days — roughly May 8 through Oct 14, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 29 to Sep 30, about 124 days.
Is the soil safe to grow vegetables in Topaz Ranch Estates?
The federal record around Topaz Ranch Estates runs heavier than most — 110 documented sites, mostly Nitrate entries (56), the nearest Nitrate record about 0.2 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 Topaz Ranch Estates?
From about Sep 14 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 14 (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 14. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Topaz Ranch Estates's scale — its 7a band and its 159-day season. Your yard writes its own version of Topaz Ranch Estates'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 Topaz Ranch Estates’s own scale
6 of the readings below were taken at Topaz Ranch Estates's own scale — its own ~159-day season between 28°F freezes, the 9,210 acres it covers and 110 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Topaz Ranch Estates's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Topaz Ranch Estates's own 28°F hard-freeze dates, about May 8 and Oct 14 and the ~159-day span between themNOAA 1991–2020 Climate Normals
- 110 documented contamination sites on the federal record near Topaz Ranch Estates, the closest Nitrate record about 0.2 miles out from the town centreFederal environmental registers
- Topaz Ranch Estates's boundary and the 9,210 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~159-day seasonGrowable Ground crop-matching engine
- The ecoregion at Topaz Ranch Estates'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 Topaz Ranch Estates's 9,210 acres read through its county's SSURGO summaryfrom Douglas County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Douglas County
- The growing challenges every Nevada grower plans around — written at state scale, so they stay on the state guidefrom Nevada
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Douglas County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Topaz Ranch Estates's 9,210 acreswhy one lot differs from the next →
- Which side of Topaz Ranch Estates you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 9,210 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.2 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 Topaz Ranch Estates-wide figureread your own land →
More in Nevada
Wider growing context
What grows across NevadaTopaz Ranch Estates sits outside our named growing regions, so Nevada as a whole is its closest context here.
Nearby growing guides