Santa Monica, California, sits in USDA hardiness zone 11a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Expect artichoke, starfruit, allspice, and cabbage to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Santa Monica, 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 Santa Monica 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 Santa Monica — soil, climate, flood, and parcel records. How we handle your address.
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Santa Monica — the short answer
Santa Monica, California: USDA zone 11a, across 5K acres of city.
- USDA zone
- 11a
- USDA PHZM 2023
- Last hard freeze (statewide)
- Jan 19 - Mar 19
- NOAA RCC ACIS 1991–2020, state middle half
- First hard freeze (statewide)
- Nov 29 - Dec 12
- NOAA RCC ACIS 1991–2020, state middle half
- City area
- 5K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Where no local normal resolves, the figure is the statewide middle-half window, labelled as such rather than passed off as local.
Hardiness Zone Range
Growing Season
Zone 11a is Santa Monica's average, not your lot's — a low corner or a tree line moves it. Against that, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Santa Monica
Each reading below is measured for Santa Monica itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Winter hardiness
MeasuredSanta Monica sits in USDA hardiness zone 11a.
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 Santa Monica is in
Santa Monica sits in the Southern California/Northern Baja Coast — EPA Level III, inside the wider Mediterranean California. That is read at Santa Monica's own centroid rather than borrowed from its county.
What Grows in Santa Monica
Every plant below cleared Santa Monica's own zone 11a. Each card opens that plant's California profile. How we score.
What's on the federal record near Santa Monica
Closest first, within ~10 miles of Santa Monica. Listing isn't leaking, and distance isn't exposure.
- CITY OF SANTA MONICABrownfields · 750 ft
- SANTA MONICA AMUSEMENTS LLCBrownfields · 800 ft
- HEAL THE BAYBrownfields · 800 ft
- LISA CHAN DDS INCBrownfields · 950 ft
- LA PUMPING PLANT 75Brownfields · 1200 ft
- QUALITY PHOTO LABBrownfields · 1400 ft
- 1305 2ND STREETBrownfields · 1500 ft
- BATH & BODY WORKS #2416Brownfields · 1700 ft
- TIFFANY AND CO 138 UMBrownfields · 1700 ft
- APPLE, INC R051Brownfields · 1800 ft
- SCHI SANTA MONICA BEACH HOTELBrownfields · 1800 ft
- SERITAGE GROWTH PROPERTIES, L.P.Brownfields · 1900 ft
6 more sites are on the record inside the same radius.
Measured from Santa Monica'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 Santa Monica.
Total Sites
6,839
within ~10 miles of Santa Monica
Risk Level
Elevated
Highest-severity
11 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Santa Monica
Severity Distribution
within ~10 miles of Santa Monica
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Santa Monica, Brownfields runs higher than the national average — 6,251 sites within ~10 miles of Santa Monica. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Santa Monica
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 Santa Monica average
Your land is one point inside Santa Monica
Everything above resolves to Santa Monica as a whole — one PHZM band and one 28°F frost record, read across 5K 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 Santa Monica Average
Santa Monica Average
- ●USDA Zones 11a, averaged across Santa Monica
- ●One soil character for all of Santa Monica
- ●State-average frost dates
YOUR Parcel
- ✓Your exact zone, not Santa Monica's 11a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Santa Monica
Pull a site-specific report for your exact address in Santa Monica, California — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Santa Monica averages can't show:
We read public map data around Santa Monica — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Santa Monica average
How we know this about Santa Monica
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, with the labelled statewide window where none resolves; 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 Santa Monica
When does frost risk typically end in Santa Monica?
Santa Monica has no hard-freeze normal of its own, so it follows California's statewide window: the middle half of counties see their last spring hard freeze (28°F) around Jan 19 - Mar 19 and their first fall hard freeze around Nov 29 - Dec 12, per NOAA Regional Climate Centers ACIS (1991–2020). Frost dates shift with elevation and local microclimate, so watch your own site's cold pockets. That marks the hard freeze, not the last light frost — light frosts can still bite for a few more weeks, so tender transplants usually wait another 2–3 weeks.
Is the soil safe to grow vegetables in Santa Monica?
The federal record around Santa Monica is a meaningful one — 6,839 documented sites, mostly Brownfields entries (6,251), the nearest Brownfields record about 0.1 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 Santa Monica?
As the season closes around California's statewide first fall hard freeze (28°F) near Nov 29 - Dec 12 (NOAA Regional Climate Centers ACIS (1991–2020)), 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 the first hard night. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Santa Monica's scale — its 11a band and its zone 11a. Your yard writes its own version of Santa Monica'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 Santa Monica’s own scale
5 of the readings below were taken at Santa Monica's own scale — the 5,382 acres it covers and 6,839 documented sites around it; 3 are borrowed from a wider read, named and linked below.
Measured here
- Santa Monica's own USDA hardiness band, zones 11aUSDA PHZM 2023
- 6,839 documented contamination sites on the federal record near Santa Monica, the closest Brownfields record about 0.1 miles out from the town centreFederal environmental registers
- Santa Monica's boundary and the 5,382 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear Santa Monica's hardiness zoneGrowable Ground crop-matching engine
- The ecoregion at Santa Monica's own centroid, the Southern California/Northern Baja CoastUS EPA Level III Ecoregions
Inherited from a wider read
- The frost window — no local hard-freeze normal resolved here, so the statewide dates stand infrom California
- Soil character — no town-scale survey exists, so Santa Monica's 5,382 acres read through the state summaryfrom California
- The growing challenges every California grower plans around — written at state scale, so they stay on the state guidefrom California
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Santa Monica's 5,382 acreswhy one lot differs from the next →
- Which side of Santa Monica you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,382 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.1 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 Santa Monica-wide figureread your own land →
More in California
Wider growing context
What grows across CaliforniaSanta Monica sits outside our named growing regions, so California as a whole is its closest context here.
Nearby growing guides