Tolani Lake, Arizona, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Expect cabbage, pawpaw, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Tolani Lake, 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 Tolani Lake 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 Tolani Lake — soil, climate, flood, and parcel records. How we handle your address.
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Tolani Lake — the short answer
Tolani Lake, Arizona: USDA zone 7a, about 198 days between hard freezes, across 404 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~198
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 404 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 7a is Tolani Lake's average, not your lot's — a low corner or a tree line moves it. Against Tolani Lake's 198-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Tolani Lake
Each reading below is measured for Tolani Lake itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredTolani Lake runs about 198 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
MeasuredTolani Lake sits in USDA hardiness zone 7a.
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 Tolani Lake is in
Tolani Lake sits in the Arizona/New Mexico Plateau — EPA Level III, inside the wider North American Deserts. That is read at Tolani Lake's own centroid rather than borrowed from Coconino County.
What Grows in Tolani Lake
Every plant below cleared Tolani Lake's own zone 7a and its 198-day season. Each card opens that plant's Arizona profile. How we score.
Is it too late to plant in Tolani Lake?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 14 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 29 — long-season crops need about 90 days of runway, quick greens only 30. As the window narrows, the plantings just get faster — fall brassicas, then greens, then garlic to finish.
What's on the federal record near Tolani Lake
Closest first, within ~10 miles of Tolani Lake. Listing isn't leaking, and distance isn't exposure.
- 05 131-05.39X03.90Nitrate · 1.0 mi
- 05 131-05.50X03.90Nitrate · 1.0 mi
- 05 131-03.36X04.55Nitrate · 1.8 mi
- 05 131-06.00X03.00Nitrate · 2.0 mi
- 05 131-06.30X02.30Nitrate · 2.8 mi
- 05 115-03.11X13.74Nitrate · 8.5 mi
Measured from Tolani Lake'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 Tolani Lake.
Total Sites
12
within ~10 miles of Tolani Lake
Risk Level
Low
Highest-severity
12 nitrate monitoring sites
Severity Distribution
within ~10 miles of Tolani Lake
Highest-Severity Sites
Know Before You Grow
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Tolani Lake
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 Tolani Lake average
Your land is one point inside Tolani Lake
Everything above resolves to Tolani Lake as a whole — one PHZM band and one 28°F frost record, read across 404 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 Tolani Lake Average
Tolani Lake Average
- ●USDA Zones 7a, averaged across Tolani Lake
- ●One soil character for all of Tolani Lake
- ●Frost dates read at Tolani Lake's scale: Apr 14 to Oct 29
YOUR Parcel
- ✓Your exact zone, not Tolani Lake's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Tolani Lake
Pull a site-specific report for your exact address in Tolani Lake, Arizona — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Tolani Lake averages can't show:
We read public map data around Tolani Lake — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Tolani Lake average
How we know this about Tolani Lake
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 Tolani Lake’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 Tolani Lake
When does frost risk typically end in Tolani Lake?
The last hard freeze (28°F) in Tolani Lake typically lands around Apr 14, 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 May 5.
When is the first frost in Tolani Lake?
The first hard freeze (28°F) in Tolani Lake typically arrives around Oct 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 15, so the watching starts about Sep 29 — about 198 days after the spring freeze cleared.
How long is the growing season in Tolani Lake?
Measured between 28°F hard freezes, Tolani Lake sees about 198 frost-free days — roughly Apr 14 through Oct 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 5 to Oct 15, about 163 days.
Is the soil safe to grow vegetables in Tolani Lake?
The federal record around Tolani Lake is light — 12 documented sites across the 9 federal source types we checked, mostly Nitrate entries (12), the nearest Nitrate record about 1.0 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do I protect my plants from frost in Tolani Lake?
From about Sep 29 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 29 (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 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Tolani Lake's scale — its 7a band and its 198-day season. Your yard writes its own version of Tolani Lake'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 Tolani Lake’s own scale
6 of the readings below were taken at Tolani Lake's own scale — its own ~198-day season between 28°F freezes, the 404 acres it covers and 12 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Tolani Lake's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Tolani Lake's own 28°F hard-freeze dates, about Apr 14 and Oct 29 and the ~198-day span between themNOAA 1991–2020 Climate Normals
- 12 documented contamination sites on the federal record near Tolani Lake, the closest Nitrate record about 1.0 miles out from the town centreFederal environmental registers
- Tolani Lake's boundary and the 404 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~198-day seasonGrowable Ground crop-matching engine
- The ecoregion at Tolani Lake's own centroid, the Arizona/New Mexico PlateauUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Tolani Lake's 404 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 Tolani Lake's 404 acreswhy one lot differs from the next →
- Which side of Tolani Lake you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 404 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 1.0 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 Tolani Lake-wide figureread your own land →