Mayer, Arizona, sits in USDA hardiness zone 8b — a zone band wide enough that plant choice, not possibility, is the interesting question.
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 Mayer, 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 Mayer 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 Mayer — soil, climate, flood, and parcel records. How we handle your address.
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Mayer — the short answer
Mayer, Arizona: USDA zone 8b, about 251 days between hard freezes, across 13K acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~251
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 13K 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 Mayer's average, not your lot's — a low corner or a tree line moves it. Against Mayer's 251-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Mayer
Each reading below is measured for Mayer itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMayer runs about 251 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredMayer 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 Mayer is in
Mayer sits in the Arizona/New Mexico Mountains — EPA Level III, inside the wider Temperate Sierras. That is read at Mayer's own centroid rather than borrowed from Yavapai County.
What Grows in Mayer
Every plant below cleared Mayer's own zone 8b and its 251-day season. Each card opens that plant's Arizona profile. How we score.
Is it too late to plant in Mayer?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Feb 15; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 21 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around Mayer
Survey cells within 31 miles of Mayer checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 297 miles off. What to watch for.
What's on the federal record near Mayer
Closest first, within ~10 miles of Mayer. Listing isn't leaking, and distance isn't exposure.
- 55-595967Nitrate · 0.8 mi
- Upshot PropertyMining · 1.5 mi
- Upshot MineMining · 1.5 mi
- MAYER SCHOOL BUS YARDUnderground Storage Tanks · 1.5 mi
- MAYER JUSTICE COURTUnderground Storage Tanks · 1.6 mi
- Iron Queen MineMining · 1.7 mi
- MAYER MARKETUnderground Storage Tanks · 1.7 mi
- CLIFF'S AUTOMOTIVEUnderground Storage Tanks · 1.7 mi
- PentlandMining · 1.7 mi
- Iron QueenMining · 1.7 mi
- FAMILY DOLLAR #6862Brownfields · 1.8 mi
- CIRCLE K #2700781Underground Storage Tanks · 1.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Mayer'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 Mayer.
Sources Checked
within ~10 miles of Mayer
Severity Distribution
within ~10 miles of Mayer
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Mayer, Mining runs higher than the national average — 212 sites within ~10 miles of Mayer. That's not a problem with your land — it's information about 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.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in Mayer
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 Mayer average
Your land is one point inside Mayer
Everything above resolves to Mayer as a whole — one PHZM band and one 28°F frost record, read across 13K 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 Mayer Average
Mayer Average
- ●USDA Zones 8b, averaged across Mayer
- ●One soil character for all of Mayer
- ●Frost dates read at Mayer's scale: Mar 15 to Nov 21
YOUR Parcel
- ✓Your exact zone, not Mayer's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Mayer
Pull a site-specific report for your exact address in Mayer, Arizona — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Mayer averages can't show:
We read public map data around Mayer — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Mayer average
How we know this about Mayer
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 Mayer’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 Mayer
When does frost risk typically end in Mayer?
The last hard freeze (28°F) in Mayer typically lands around Mar 15, 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 Apr 5.
When is the first frost in Mayer?
The first hard freeze (28°F) in Mayer typically arrives around Nov 21, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 7, so the watching starts about Oct 22 — about 251 days after the spring freeze cleared.
How long is the growing season in Mayer?
Measured between 28°F hard freezes, Mayer sees about 251 frost-free days — roughly Mar 15 through Nov 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 5 to Nov 7, about 216 days.
Is the soil safe to grow vegetables in Mayer?
The federal record around Mayer runs heavier than most — 282 documented sites, mostly Mining entries (212), the nearest Nitrate record about 0.8 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 Mayer?
From about Oct 22 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 21 (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 21. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Mayer's scale — its 8b band and its 251-day season. Your yard writes its own version of Mayer'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 Mayer’s own scale
7 of the readings below were taken at Mayer's own scale — its own ~251-day season between 28°F freezes, the 12,897 acres it covers and 282 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Mayer's own USDA hardiness band, zones 8bUSDA PHZM 2023
- Mayer's own 28°F hard-freeze dates, about Mar 15 and Nov 21 and the ~251-day span between themNOAA 1991–2020 Climate Normals
- 282 documented contamination sites on the federal record near Mayer, the closest Nitrate record about 0.8 miles out from the town centreFederal environmental registers
- Mayer's boundary and the 12,897 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~251-day seasonGrowable Ground crop-matching engine
- The ecoregion at Mayer's own centroid, the Arizona/New Mexico MountainsUS EPA Level III Ecoregions
- Lanternfly survey cells around Mayer checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Mayer's 12,897 acres read through its county's SSURGO summaryfrom Yavapai County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Yavapai County
- The growing challenges every Arizona grower plans around — written at state scale, so they stay on the state guidefrom Arizona
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Yavapai County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Mayer's 12,897 acreswhy one lot differs from the next →
- Which side of Mayer you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 12,897 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.8 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 Mayer-wide figureread your own land →
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