Oakland, California, sits in USDA hardiness zone 10a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Reliable performers under these conditions include avocado, meyer lemon, tomato, and artichoke; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Oakland, 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 Oakland 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 Oakland — soil, climate, flood, and parcel records. How we handle your address.
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Oakland — the short answer
Oakland, California: USDA zone 10a, about 334 days between hard freezes, across 36K acres of city.
- USDA zone
- 10a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Jan 12
- Alameda County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 12
- Alameda County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~334
- Alameda County normal — NOAA 1991–2020, nearest to this town
- City area
- 36K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Alameda County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 10a is Oakland's average, not your lot's — a low corner or a tree line moves it. Against Oakland's 334-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Oakland
Each reading below is measured for Oakland itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsOakland runs about 334 days between hard freezes (read from Alameda County, the closest normal to Oakland) — 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
MeasuredOakland sits in USDA hardiness zone 10a.
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 Oakland is in
Oakland sits in the Central California Foothills and Coastal Mountains — EPA Level III, inside the wider Mediterranean California. That is read at Oakland's own centroid rather than borrowed from Alameda County.
What Grows in Oakland
Plants matched to Oakland's USDA zones 10a, ordered by how much hardiness margin each has here — the ones with room to spare at both ends of this town's band lead. Each links to its full growing profile.
Is it too late to plant in Oakland?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Jan 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Jan 12 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 12 — 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.
Documented around Oakland
Spotted lanternfly documented 2 miles from Oakland, first recorded 2023. What to watch for.
What's on the federal record near Oakland
Closest first, within ~10 miles of Oakland. Listing isn't leaking, and distance isn't exposure.
- PG&E PROJECT R-1270 ALAMEDA AVEBrownfields · 400 ft
- UNIVERSAL WASTE MANAGEMENT INCBrownfields · 500 ft
- CALTRANS DISTRICT 4Brownfields · 700 ft
- OWENS-BROCKWAY GLASSBrownfields · 700 ft
- OWENS-BROCKWAY GLASSToxics Release Inventory · 700 ft
- AMERICAN NATIONAL CAN COBrownfields · 750 ft
- AMERICAN NATIONAL CAN COToxics Release Inventory · 750 ft
- AMERIT FLEET SOLUTIONS INC.Brownfields · 800 ft
- BRINK'S U.S.Brownfields · 800 ft
- AMERIT FLEET SOLUTIONSBrownfields · 800 ft
- HOME DEPOT STORE #1007Brownfields · 850 ft
- AGRIBAGBrownfields · 950 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Oakland'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 Oakland.
Sources Checked
within ~10 miles of Oakland
Severity Distribution
within ~10 miles of Oakland
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Oakland, Brownfields runs higher than the national average — 6,995 sites within ~10 miles of Oakland. 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 Oakland
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 Oakland average
Your land is one point inside Oakland
Everything above resolves to Oakland as a whole — one PHZM band, read across 36K acres, with hard-freeze dates borrowed from Alameda County’s record because no 30-year normal resolves at this city’s own centroid. 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 Oakland Average
Oakland Average
- ●USDA Zones 10a, averaged across Oakland
- ●One soil character for all of Oakland
- ●Frost dates read at Oakland's scale: Jan 12 to Dec 12
YOUR Parcel
- ✓Your exact zone, not Oakland's 10a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Oakland
Pull a site-specific report for your exact address in Oakland, California — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Oakland averages can't show:
We read public map data around Oakland — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Oakland average
How we know this about Oakland
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 at Alameda County’s record, because none resolves here; 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 Oakland
When does frost risk typically end in Oakland?
The last hard freeze (28°F) in Oakland typically lands around Jan 12, 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 Feb 2.
When is the first frost in Oakland?
The first hard freeze (28°F) in Oakland typically arrives around Dec 12, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 28, so the watching starts about Nov 12 — about 334 days after the spring freeze cleared.
How long is the growing season in Oakland?
Measured between 28°F hard freezes, Oakland sees about 334 frost-free days — roughly Jan 12 through Dec 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 2 to Nov 28, about 299 days.
Is the soil safe to grow vegetables in Oakland?
The federal record around Oakland runs heavier than most — 7,672 documented sites, mostly Brownfields entries (6,995), the nearest Brownfields record under a tenth of a mile 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 Oakland?
From about Nov 12 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 Dec 12 (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 Dec 12. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Oakland's scale — its 10a band and its 334-day season. Your yard writes its own version of Oakland'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 Oakland’s own scale
5 of the readings below were taken at Oakland's own scale — the 35,816 acres it covers and 7,672 documented sites around it; 6 are borrowed from a wider read, named and linked below.
Measured here
- Oakland's own USDA hardiness band, zones 10aUSDA PHZM 2023
- 7,672 documented contamination sites on the federal record near Oakland, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Oakland's boundary and the 35,816 acres inside itUS Census TIGER/Line 2025
- The ecoregion at Oakland's own centroid, the Central California Foothills and Coastal MountainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Oaklandlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- The 28°F hard-freeze dates — Oakland has no normal of its own, so its county's is the closest measured readfrom Alameda County
- Soil character — no town-scale survey exists, so Oakland's 35,816 acres read through its county's SSURGO summaryfrom Alameda County
- The candidate plant list — California's curated set, filtered to this zone band and re-ordered by how much margin each has herefrom California
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Alameda 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 Alameda County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Oakland's 35,816 acreswhy one lot differs from the next →
- Which side of Oakland you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 35,816 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record under a tenth of a mile 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 Oakland-wide figureread your own land →