Blue Ridge, Arizona, sits in USDA hardiness zone 6b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
The conditions favor cabbage, blackberry, california poppy, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Blue Ridge, 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 Blue Ridge 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 Blue Ridge — soil, climate, flood, and parcel records. How we handle your address.
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Blue Ridge — the short answer
Blue Ridge, Arizona: USDA zone 6b, about 154 days between hard freezes, across 12K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 13
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~154
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 12K 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 6b is Blue Ridge's average, not your lot's — a low corner or a tree line moves it. Against Blue Ridge's 154-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Blue Ridge
Each reading below is measured for Blue Ridge itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBlue Ridge runs about 154 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredBlue Ridge sits in USDA hardiness zone 6b.
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 Blue Ridge is in
Blue Ridge sits in the Arizona/New Mexico Mountains — EPA Level III, inside the wider Temperate Sierras. That is read at Blue Ridge's own centroid, and it is not what its county reads: Coconino County is mostly Arizona/New Mexico Plateau. The wider page above you is answering a different question about different ground.
What Grows in Blue Ridge
Every plant below cleared Blue Ridge's own zone 6b and its 154-day season. Each card opens that plant's Arizona profile. How we score.
Is it too late to plant in Blue Ridge?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Apr 14; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 12 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 13 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
Documented around Blue Ridge
Survey cells within 31 miles of Blue Ridge checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 363 miles off. What to watch for.
What's on the federal record near Blue Ridge
Closest first, within ~10 miles of Blue Ridge. Listing isn't leaking, and distance isn't exposure.
- A-15-12 31DDCNitrate · 1500 ft
- JESSE E TAYLORUnderground Storage Tanks · 0.6 mi
- CLEAR CREEK PINES BACKHOLE SERVICEUnderground Storage Tanks · 1.0 mi
- Dogtown MineMining · 1.6 mi
- A-14-11 12BCDNitrate · 2.8 mi
- ADOT - BLUE RIDGE MAINTENANCE CAMPUnderground Storage Tanks · 5.0 mi
- A-14-11 09DCANitrate · 5.1 mi
- A-16-11 13BCDNitrate · 9.5 mi
Measured from Blue Ridge'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 Blue Ridge.
Sources Checked
within ~10 miles of Blue Ridge
Severity Distribution
within ~10 miles of Blue Ridge
Highest-Severity Sites
Know Before You Grow
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Mine waste leaches heavy metals. Test for lead, arsenic and cadmium before growing food here.
Check your specific parcel in Blue Ridge
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 Blue Ridge average
Your land is one point inside Blue Ridge
Everything above resolves to Blue Ridge as a whole — one PHZM band and one 28°F frost record, read across 12K 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 Blue Ridge Average
Blue Ridge Average
- ●USDA Zones 6b, averaged across Blue Ridge
- ●One soil character for all of Blue Ridge
- ●Frost dates read at Blue Ridge's scale: May 12 to Oct 13
YOUR Parcel
- ✓Your exact zone, not Blue Ridge's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Blue Ridge
Pull a site-specific report for your exact address in Blue Ridge, Arizona — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Blue Ridge averages can't show:
We read public map data around Blue Ridge — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Blue Ridge average
How we know this about Blue Ridge
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 Blue Ridge’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 Blue Ridge
When does frost risk typically end in Blue Ridge?
The last hard freeze (28°F) in Blue Ridge typically lands around May 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 Jun 2.
When is the first frost in Blue Ridge?
The first hard freeze (28°F) in Blue Ridge typically arrives around Oct 13, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 29, so the watching starts about Sep 13 — about 154 days after the spring freeze cleared.
How long is the growing season in Blue Ridge?
Measured between 28°F hard freezes, Blue Ridge sees about 154 frost-free days — roughly May 12 through Oct 13, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 2 to Sep 29, about 119 days.
Is the soil safe to grow vegetables in Blue Ridge?
The federal record around Blue Ridge shows 12 documented sites, mostly Nitrate entries (8), the nearest Nitrate record about 0.3 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Blue Ridge?
From about Sep 13 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 Oct 13 (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 Oct 13. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Blue Ridge's scale — its 6b band and its 154-day season. Your yard writes its own version of Blue Ridge'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 Blue Ridge’s own scale
7 of the readings below were taken at Blue Ridge's own scale — its own ~154-day season between 28°F freezes, the 12,221 acres it covers and 12 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Blue Ridge's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Blue Ridge's own 28°F hard-freeze dates, about May 12 and Oct 13 and the ~154-day span between themNOAA 1991–2020 Climate Normals
- 12 documented contamination sites on the federal record near Blue Ridge, the closest Nitrate record about 0.3 miles out from the town centreFederal environmental registers
- Blue Ridge's boundary and the 12,221 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~154-day seasonGrowable Ground crop-matching engine
- Blue Ridge sits in the Arizona/New Mexico Mountains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- Lanternfly survey cells around Blue Ridge 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 Blue Ridge's 12,221 acres read through its county's SSURGO summaryfrom Coconino County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Coconino 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 Coconino County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Blue Ridge's 12,221 acreswhy one lot differs from the next →
- Which side of Blue Ridge you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 12,221 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.3 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 Blue Ridge-wide figureread your own land →