Ridgecrest Heights, California, sits in USDA hardiness zone 8b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include cabbage, fig, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Ridgecrest Heights, 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 Ridgecrest Heights 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 Ridgecrest Heights — soil, climate, flood, and parcel records. How we handle your address.
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Ridgecrest Heights — the short answer
Ridgecrest Heights, California: USDA zone 8b, about 282 days between hard freezes, across 387 acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 17
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~282
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 387 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 8b is Ridgecrest Heights's average, not your lot's — a low corner or a tree line moves it. Against Ridgecrest Heights's 282-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Ridgecrest Heights
Each reading below is measured for Ridgecrest Heights itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRidgecrest Heights runs about 282 days between hard freezes — close to year-round growing.
Frost is rarely the limit here; winter plantings are as real as summer ones, and the harder question is which crops shrug off the summer heat.
Grow cool-season crops through the mild winter, and choose heat-tolerant varieties for the summer beds.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredRidgecrest Heights sits in USDA hardiness zone 8b.
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 Ridgecrest Heights is in
Ridgecrest Heights sits in the Mojave Basin and Range — EPA Level III, inside the wider North American Deserts. That is read at Ridgecrest Heights's own centroid, and it is not what its county reads: Kern County is mostly Central California Valley. The wider page above you is answering a different question about different ground.
What Grows in Ridgecrest Heights
Every plant below cleared Ridgecrest Heights's own zone 8b and its 282-day season. Each card opens that plant's California profile. How we score.
Is it too late to plant in Ridgecrest Heights?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Jan 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 17 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 26 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.
What's on the federal record near Ridgecrest Heights
Closest first, within ~10 miles of Ridgecrest Heights. Listing isn't leaking, and distance isn't exposure.
- 027S040E08F001MNitrate · 2100 ft
- 027S040E07G001MNitrate · 0.5 mi
- 027S040E06R002MNitrate · 0.6 mi
- 027S040E08B002MNitrate · 0.7 mi
- JAMES IRVINEBrownfields · 0.9 mi
- FIRST BAPTIST CHURCHBrownfields · 0.9 mi
- 027S040E08A001MNitrate · 1.0 mi
- 027S040E06H001MNitrate · 1.0 mi
- DEWEY PEST CONTROLBrownfields · 1.0 mi
- JESS MINI MARTUnderground Storage Tanks · 1.0 mi
- 027S040E17G001MNitrate · 1.1 mi
- MONO ST. EMERGENCY RESPONSEBrownfields · 1.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Ridgecrest Heights'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 Ridgecrest Heights.
Total Sites
538
within ~10 miles of Ridgecrest Heights
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Ridgecrest Heights
Severity Distribution
within ~10 miles of Ridgecrest Heights
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Ridgecrest Heights, Nitrate runs higher than the national average — 366 sites within ~10 miles of Ridgecrest Heights. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around 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 Ridgecrest Heights
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 Ridgecrest Heights average
Your land is one point inside Ridgecrest Heights
Everything above resolves to Ridgecrest Heights as a whole — one PHZM band and one 28°F frost record, read across 387 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 Ridgecrest Heights Average
Ridgecrest Heights Average
- ●USDA Zones 8b, averaged across Ridgecrest Heights
- ●One soil character for all of Ridgecrest Heights
- ●Frost dates read at Ridgecrest Heights's scale: Feb 17 to Nov 26
YOUR Parcel
- ✓Your exact zone, not Ridgecrest Heights's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Ridgecrest Heights
Pull a site-specific report for your exact address in Ridgecrest Heights, California — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Ridgecrest Heights averages can't show:
We read public map data around Ridgecrest Heights — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Ridgecrest Heights average
How we know this about Ridgecrest Heights
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 Ridgecrest Heights’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 Ridgecrest Heights
When does frost risk typically end in Ridgecrest Heights?
The last hard freeze (28°F) in Ridgecrest Heights typically lands around Feb 17, 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 Mar 10.
When is the first frost in Ridgecrest Heights?
The first hard freeze (28°F) in Ridgecrest Heights typically arrives around Nov 26, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 12, so the watching starts about Oct 27 — about 282 days after the spring freeze cleared.
How long is the growing season in Ridgecrest Heights?
Measured between 28°F hard freezes, Ridgecrest Heights sees about 282 frost-free days — roughly Feb 17 through Nov 26, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 10 to Nov 12, about 247 days.
Is the soil safe to grow vegetables in Ridgecrest Heights?
The federal record around Ridgecrest Heights is a meaningful one — 538 documented sites, mostly Nitrate entries (366), the nearest Nitrate 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 I protect my plants from frost in Ridgecrest Heights?
From about Oct 27 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 Nov 26 (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 Nov 26. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Ridgecrest Heights's scale — its 8b band and its 282-day season. Your yard writes its own version of Ridgecrest Heights'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 Ridgecrest Heights’s own scale
6 of the readings below were taken at Ridgecrest Heights's own scale — its own ~282-day season between 28°F freezes, the 387 acres it covers and 538 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Ridgecrest Heights's own USDA hardiness band, zones 8bUSDA PHZM 2023
- Ridgecrest Heights's own 28°F hard-freeze dates, about Feb 17 and Nov 26 and the ~282-day span between themNOAA 1991–2020 Climate Normals
- 538 documented contamination sites on the federal record near Ridgecrest Heights, the closest Nitrate record about 0.4 miles out from the town centreFederal environmental registers
- Ridgecrest Heights's boundary and the 387 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~282-day seasonGrowable Ground crop-matching engine
- Ridgecrest Heights sits in the Mojave Basin and Range — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Ridgecrest Heights's 387 acres read through its county's SSURGO summaryfrom Kern County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Kern 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 Kern County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Ridgecrest Heights's 387 acreswhy one lot differs from the next →
- Which side of Ridgecrest Heights you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 387 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Ridgecrest Heights-wide figureread your own land →