The Mojave Desert spans USDA hardiness zones 8b-9b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
A hot, low desert of creosote flats and Joshua trees where growing means irrigation, heat-loving crops, and shade — pomegranates, dates, and desert-adapted beds. Expect tomato, fig, california poppy, and artichoke to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
The Mojave Desert spans California and Nevada. Its footprint follows the EPA Level III ecoregion boundary; the counties linked below are representative of the region, not an exhaustive list.
Your yard isn't all of the Mojave Desert.
The Mojave Desert spans USDA zones 8b-9b, but your parcel sits in exactly one — and slope, tree cover, and low spots nudge it further. 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 Mojave Desert — soil, climate, flood, and parcel records. How we handle your address.
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The Mojave Desert — the short answer
The Mojave Desert: USDA zones 8b-9b, 237–328 frost-free days depending where in it you stand, across 2 states.
- USDA zones
- 8b-9b
- USDA PHZM 2023, aggregated over the footprint
- Shortest season here
- 237 days
- NOAA Regional Climate Centers ACIS, 1991-2020 — Inyo County
- Counties
- 4
- US Census TIGER/Line 2025
- Region type
- EPA ecoregion
- Growable Ground growing-region registry
Region boundary: Growable Ground growing-region registry — curated county clusters, EPA Level III ecoregions, and town clusters drawn finer than any county. The season figure is this region's own record, measured across its 4 member counties, not a state or national average.
Hardiness Zone Range
The Mojave Desert is not one growing season
One answer for the Mojave Desert averages 4 counties whose growing seasons are 91 days apart — from 237 frost-free days in Inyo County to 328 in San Bernardino County. That is the same region, measured the same way, in the same years. Which end of it your land sits nearer decides what finishes before the first hard freeze.
The middle half of 4 counties runs 287–323 days, with a median of 312 days — a 91-day span end to end.
Measured across 4 member counties, each carrying its own 28°F normal. NOAA Regional Climate Centers ACIS, 1991-2020. A member with no own record is absent from the range rather than counted as zero — nothing here is interpolated to the region. Your own site sits somewhere inside this range; a parcel report resolves where.
Where the line runs inside the Mojave Desert
The middle half of the Mojave Desert runs 287–323 frost-free days, and 2 of its 4 counties sit outside that — 1 on the short side, 1 on the long. A regional planting date describes the middle well and the ends poorly, which is worth knowing before you follow one.
Under 287 frost-free days
1 county
- Inyo County · 237 days
The end of the region that sets the planting calendar — start seed indoors here and the season stretches to meet the crop.
287–323 frost-free days
2 counties
0 of 2 shown
The middle half of the region, and the part a single regional season describes well.
Over 323 frost-free days
1 county
- San Bernardino County · 328 days
Long enough for a second succession of a quick crop after the first comes out.
Each county is placed by its OWN 28°F frost-free normal (NOAA Regional Climate Centers ACIS, 1991-2020), the same figure its own guide page publishes. Elevation, slope and cold-air drainage move a site within its county as well — which is the part only your address resolves.
What Grows in the Mojave Desert
All 1 of the plants below that publish a season requirement clear even Inyo County’s 237 frost-free days — so on season alone, this grid works at both ends of the region. The 91-day spread still decides how far past this list you can push, and how early you can start.
Plants matched to the Mojave Desert's USDA zones 8b-9b, ordered by how much hardiness margin each has across the region — the ones with room to spare at both ends of this band lead. Each links to its full growing profile.
Native Plants of the Mojave Desert
Plants the USDA PLANTS Database documents as native and present in all 2 states this region crosses, kept only where the published hardiness range meets the Mojave Desert’s USDA zones 8b-9b — closest range match first. Presence is recorded by state, so a plant can be documented across the state and still be scarce in your corner of the region.
The ground across the Mojave Desert
The USDA soil survey maps this ground county by county. These are those records weighted by land area across four member counties — this region’s own profile, not a state figure.
The ground is predominantly Entisols, at 54% of mapped acres, followed by Aridisols (32%), Mollisols (8%) and Alfisols (4%). Seven soil orders appear somewhere inside the footprint, which is the honest reason a regional soil answer only goes so far. The most extensive named soils are Cajon, Arizo, and Brantel.
43% of those acres are well drained, and another 31% somewhat excessively drained, 11% excessively drained. Topsoil pH runs 6.6–8.4 between the lowest and the highest county on record.
Soil order
Entisols
Drainage
Well drained
Topsoil pH
6.6–8.4
Hydric soils
1%
Soil changes across a driveway, so which of these your own ground sits on is a parcel question rather than a regional one. Inyo County holds the most wetland ground here, at 4% — soil types explained.
USDA NRCS SSURGO via Soil Data Access
What this means for growing in the Mojave Desert
The soil survey reads this ground county by county, and the readings above are those records summed across the Mojave Desert. Here is what they mean for a garden here — and the move an experienced grower makes about each one.
Drainage
From county records43% of the mapped acres across the Mojave Desert are well drained — ground that drains quickly. That is area-weighted across all four of its mapped counties.
The upside is soil you can work early in spring and roots that never drown; the cost is that fast-draining ground dries out fast and leaches nutrients away before plants can use them.
Work in compost and mulch to hold moisture and feed, and water more often in short doses than deep and rarely.
USDA NRCS SSURGO
Surface pH
From county recordsTopsoil across the Mojave Desert runs pH 6.6–8.4 — alkaline in three of its four counties.
Many vegetables cope, but acid-lovers like blueberries struggle, and iron and manganese lock up above about pH 7.5 — leaves yellow between the veins even in rich soil.
Elemental sulfur and generous organic matter lower pH slowly for the beds that need it; test first so you add only what the soil actually calls for.
USDA NRCS SSURGO
Safe to Grow Here?
What the federal record shows across the Mojave Desert — and how to grow with it.
Across the Mojave Desert's 4 counties the federal record holds 33,855 documented sites, mostly Brownfields (19,872), Nitrate (7,174) and Underground Storage Tanks (3,378). The heaviest single county is San Bernardino County, with 16,466.
That is a regional count, not a reading of any one lot — proximity to a documented site is information, not a diagnosis. Open the map outlined to the Mojave Desert to see which records sit where you actually grow.
Sources Checked
Summed across the 4 counties in the Mojave Desert
A note from Gnorman
What an experienced grower watches for around here
In and around the Mojave Desert, two things run higher than the national average across the 4 counties in the Mojave Desert — Mining (2,395 sites) and Brownfields (19,872 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.
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.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
Your land is one point inside the Mojave Desert
Everything above resolves to the Mojave Desert as a whole — a footprint whose own counties record seasons 91 days apart, and hardiness across zones 8b-9b. Your parcel sits at one point in that range, not in the middle of it. 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 region 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 regional average.
Your Lot vs the Mojave Desert Average
Mojave Desert Average
- ●USDA Zones 8b-9b, averaged across Mojave Desert
- ●One soil character for all of Mojave Desert
- ●State-average frost dates
YOUR Parcel
- ✓Your exact zone, not Mojave Desert's 8b-9b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in the Mojave Desert
Pull a site-specific report for your exact address in the Mojave Desert — soil, sun, drainage, frost risk, contamination, and scored plant recommendations.
Three things about your lot that Mojave Desert averages can't show:
We read public map data around The Mojave Desert — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Mojave Desert average
How we know this about the Mojave Desert
The boundary: an EPA Level III ecoregion (an area sharing climate, soils, and vegetation). Growing regions have no official boundary, so this footprint is our published one, and every figure on this page was measured over the counties inside it rather than borrowed from the state around it.
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, aggregated across the footprint; the growing season from NOAA Regional Climate Centers ACIS 1991–2020 28°F normals, read at each member’s own record; boundaries from US Census TIGER/Line 2025; the contamination record from the federal sources named in that beat above; the soil from the USDA NRCS SSURGO survey, read at each member county’s own record and weighted to this footprint by land area. Where a member carries no record of its own, it is absent from the figure rather than filled in.
Common questions about the Mojave Desert
What hardiness zone is the Mojave Desert?
The Mojave Desert spans USDA hardiness zones 8b-9b, aggregated from the USDA Agricultural Research Service Plant Hardiness Zone Map 2023 across the region's counties. Zones reflect average annual extreme minimum temperatures from 1991–2020 data.
How long is the growing season in the Mojave Desert?
Measured between 28°F hard freezes, the Mojave Desert's counties mostly run 287 to 323 frost-free days, median 312 (NOAA Regional Climate Centers ACIS, 1991–2020, over 4 member counties). That 36-day spread is the honest read — no single season describes 4 counties, and each county guide below carries its own.
When does frost risk end in the Mojave Desert?
Across the Mojave Desert, the middle half of member counties see their last 28°F hard freeze between Jan 23 and Feb 23 (median Feb 4), and their first fall freeze between Dec 6 and Dec 12. Those are hard freezes, not the last light frost: tender transplants wait for about Feb 25, and elevation decides which end of a 31-day spread you garden in.
What grows well in the Mojave Desert?
The Mojave Desert's conditions suit plants such as Tomato, Fig, California Poppy, Artichoke, Pomegranate, Grape. What actually thrives on any one site still turns on its specific soil, sun, and drainage — we score each plant against the real conditions at your address.
How is the Mojave Desert defined?
The Mojave Desert's footprint follows an EPA Level III ecoregion — a boundary drawn where climate, soils, and vegetation actually change rather than where a state line falls. It covers 4 counties, and the counties linked on this page are representative of the region, not an exhaustive list.
Which states does the Mojave Desert cover?
The Mojave Desert spans California and Nevada. Each state's full growing guide is linked on this page.
What other growing regions cover the same states?
Pacific Northwest, California Central Valley, Sacramento Valley, San Joaquin Valley, Sierra Nevada Foothills, and Sonoran Desert share at least one state with the Mojave Desert. Growing regions overlap and interlock — a single address can sit inside more than one, which is why the precise read is always the parcel, not the region.
What this page reads at the Mojave Desert’s own scale
6 of the readings below were taken at the Mojave Desert's own scale — the zone 8b-9b band across its footprint, a median 312-day season across its 4 counties and 33,855 documented federal contamination records across its 4 counties, 16,466 of them in San Bernardino County alone; one is borrowed from a wider read, named and linked below.
Measured here
- The USDA hardiness band 8b-9b aggregated across all 4 counties in the footprintUSDA PHZM 2023
- The boundary itself — the EPA Level III ecoregion its 4 counties sit inside, drawn where climate and soils changeEPA Level III Ecoregions
- The growing character that makes this region distinct from the states it crossesGrowable Ground subregion registry
- The 28°F season across the footprint — the middle half of its 4 counties run 287 to 323 frost-free days, median 312NOAA Regional Climate Centers ACIS, 1991-2020
- The federal contamination record over the whole footprint — 33,855 documented federal contamination records across its 4 counties, 16,466 of them in San Bernardino County aloneEPA, USGS and USDA federal site records
- The soil order mix across the footprint — 54% Entisols, topsoil pH 6.6–8.4, area-weighted across its 4 mapped countiesUSDA NRCS SSURGO
Inherited from a wider read
- The candidate plant list — all 2 member states' curated sets, merged and filtered to zones 8b-9bfrom California and Nevada
What this page can’t tell you
- Which end of the 36-day range your ground sits at — 287 days at one extreme, 323 at the other, decided mostly by elevationfrost dates explained →
- Which of those soils your own ground sits on — the survey maps them county-wide, and they change across a drivewaysoil types explained →
- The soil pH, drainage, sun hours, and frost pockets on one specific lotwhy one lot differs from the next →
Explore the Mojave Desert
State growing guides
Representative counties
Other growing regions across California and Nevada
The maritime Northwest west of the Cascade crest — mild, wet winters and dry summers behind berries, tree fruit, and lush cool-season gardens. (Union of the west-side ecoregions.)
A vast flat alluvial trough with hot dry summers and rich soils — one of the most productive agricultural regions on earth, from almonds and stone fruit to row crops.
The cooler, wetter northern half of the Central Valley — rice, walnuts, tomatoes, and orchard fruit on rich alluvial bottomland.
The hot southern half of California's Central Valley — deep soils and intense sun behind almonds, stone fruit, grapes, and row crops at vast scale.
California's Gold Country foothills — rocky, well-drained slopes and warm days that suit wine grapes, olives, and Mediterranean orchard crops.
A warm desert of saguaro and palo verde with mild winters that allow desert citrus, dates, and prickly pear alongside intensive irrigated gardening.