Greenehaven, Arizona, sits in USDA hardiness zone 8a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Crops well matched to these conditions include cabbage, fig, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Greenehaven, 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 Greenehaven 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 Greenehaven — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Greenehaven — the short answer
Greenehaven, Arizona: USDA zone 8a, about 262 days between hard freezes, across 490 acres of town.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 2
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~262
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 490 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 8a is Greenehaven's average, not your lot's — a low corner or a tree line moves it. Against Greenehaven's 262-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Greenehaven
Each reading below is measured for Greenehaven itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGreenehaven runs about 262 days between hard freezes — 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
MeasuredGreenehaven sits in USDA hardiness zone 8a.
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 Greenehaven is in
Greenehaven sits in the Colorado Plateaus — EPA Level III, inside the wider North American Deserts. That is read at Greenehaven'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 Greenehaven
Every plant below cleared Greenehaven's own zone 8a and its 262-day season. Each card opens that plant's Arizona profile. How we score.
Is it too late to plant in Greenehaven?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 2; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 2 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 19 — long-season crops need about 90 days of runway, quick greens only 30. In a climate this gentle, “too late” hardly applies — the question becomes which crops prefer the cooler months ahead.
What's on the federal record near Greenehaven
Closest first, within ~10 miles of Greenehaven. Listing isn't leaking, and distance isn't exposure.
- U.S. NATL PARK SERVICE GLEN CANYON NRA (GRCA)Toxics Release Inventory · 2200 ft
- LAKE POWELL TRAVEL PLAZAUnderground Storage Tanks · 2300 ft
- STATELINE MARINA FUEL DOCKUnderground Storage Tanks · 3.0 mi
- A-42-08 35DAB2Nitrate · 3.3 mi
- A-42-08 35DCDNitrate · 3.3 mi
- LAKE POWELL RESORT (FORMERLY WAHWEAP LODGE & MARINA)Brownfields · 3.5 mi
- CITY OF PAGE MUNICIPAL SOLID WASTE LANDFILLUnderground Storage Tanks · 3.6 mi
- A-42-08 36CCC2Nitrate · 3.6 mi
- USDOI NPS - GLEN CANYON - WAHWEAP MAINTENANCEUnderground Storage Tanks · 3.7 mi
- A-41-08 14BCBNitrate · 3.7 mi
- WAHWEAP SINCLAIR STATIONUnderground Storage Tanks · 3.8 mi
- A-41-08 14BCANitrate · 3.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Greenehaven'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 Greenehaven.
Total Sites
70
within ~10 miles of Greenehaven
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Greenehaven
Severity Distribution
within ~10 miles of Greenehaven
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Greenehaven, Mining runs higher than the national average — 7 sites within ~10 miles of Greenehaven. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Greenehaven
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 Greenehaven average
Your land is one point inside Greenehaven
Everything above resolves to Greenehaven as a whole — one PHZM band and one 28°F frost record, read across 490 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 Greenehaven Average
Greenehaven Average
- ●USDA Zones 8a, averaged across Greenehaven
- ●One soil character for all of Greenehaven
- ●Frost dates read at Greenehaven's scale: Mar 2 to Nov 19
YOUR Parcel
- ✓Your exact zone, not Greenehaven's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Greenehaven
Pull a site-specific report for your exact address in Greenehaven, Arizona — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Greenehaven averages can't show:
We read public map data around Greenehaven — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Greenehaven average
How we know this about Greenehaven
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 Greenehaven’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 Greenehaven
When does frost risk typically end in Greenehaven?
The last hard freeze (28°F) in Greenehaven typically lands around Mar 2, 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 Mar 23.
When is the first frost in Greenehaven?
The first hard freeze (28°F) in Greenehaven typically arrives around Nov 19, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 5, so the watching starts about Oct 20 — about 262 days after the spring freeze cleared.
How long is the growing season in Greenehaven?
Measured between 28°F hard freezes, Greenehaven sees about 262 frost-free days — roughly Mar 2 through Nov 19, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 23 to Nov 5, about 227 days.
Is the soil safe to grow vegetables in Greenehaven?
The federal record around Greenehaven is a meaningful one — 70 documented sites, mostly Underground Storage Tanks entries (37), the nearest Toxics Release Inventory record about 0.4 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 Greenehaven?
From about Oct 20 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 19 (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 19. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Greenehaven's scale — its 8a band and its 262-day season. Your yard writes its own version of Greenehaven'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 Greenehaven’s own scale
6 of the readings below were taken at Greenehaven's own scale — its own ~262-day season between 28°F freezes, the 490 acres it covers and 70 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Greenehaven's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Greenehaven's own 28°F hard-freeze dates, about Mar 2 and Nov 19 and the ~262-day span between themNOAA 1991–2020 Climate Normals
- 70 documented contamination sites on the federal record near Greenehaven, the closest Toxics Release Inventory record about 0.4 miles out from the town centreFederal environmental registers
- Greenehaven's boundary and the 490 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~262-day seasonGrowable Ground crop-matching engine
- Greenehaven sits in the Colorado Plateaus — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Greenehaven's 490 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 Greenehaven's 490 acreswhy one lot differs from the next →
- Which side of Greenehaven you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 490 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Toxics Release Inventory record about 0.4 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 Greenehaven-wide figureread your own land →