Sperry, Oklahoma, sits in USDA hardiness zone 7b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
These conditions suit cabbage, prickly pear, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Sperry, 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 Sperry 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 Sperry — soil, climate, flood, and parcel records. How we handle your address.
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Sperry — the short answer
Sperry, Oklahoma: USDA zone 7b, about 240 days between hard freezes, across 1K acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 17
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~240
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 7b is Sperry's average, not your lot's — a low corner or a tree line moves it. Against Sperry's 240-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Sperry
Each reading below is measured for Sperry itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSperry runs about 240 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
MeasuredSperry sits in USDA hardiness zone 7b.
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 Sperry is in
Sperry sits in the Central Irregular Plains — EPA Level III, inside the wider Great Plains. That is read at Sperry's own centroid rather than borrowed from Tulsa County.
What Grows in Sperry
Every plant below cleared Sperry's own zone 7b and its 240-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Sperry?
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 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 17 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 12 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
What's on the federal record near Sperry
Closest first, within ~10 miles of Sperry. Listing isn't leaking, and distance isn't exposure.
- Sperry Public Schools-Bus BarnUnderground Storage Tanks · 50 ft
- Sperry Public SchoolUnderground Storage Tanks · 1400 ft
- City Of OwassoUnderground Storage Tanks · 1700 ft
- Sperry Community CenterUnderground Storage Tanks · 2100 ft
- Former Service StationUnderground Storage Tanks · 2200 ft
- City HallUnderground Storage Tanks · 2200 ft
- VacantUnderground Storage Tanks · 2400 ft
- Walt's Service CenterUnderground Storage Tanks · 2500 ft
- Sunshine #9Underground Storage Tanks · 0.5 mi
- Jim's Save-A-DollarUnderground Storage Tanks · 0.5 mi
- Leorard's ConocoUnderground Storage Tanks · 1.7 mi
- Super Grocery & GasUnderground Storage Tanks · 2.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Sperry'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 Sperry.
Sources Checked
within ~10 miles of Sperry
Severity Distribution
within ~10 miles of Sperry
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Sperry, Toxics Release Inventory runs higher than the national average — 77 sites within ~10 miles of Sperry. That's not a problem with your land — it's information about it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Sperry
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 Sperry average
Your land is one point inside Sperry
Everything above resolves to Sperry as a whole — one PHZM band and one 28°F frost record, read across 1K 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 Sperry Average
Sperry Average
- ●USDA Zones 7b, averaged across Sperry
- ●One soil character for all of Sperry
- ●Frost dates read at Sperry's scale: Mar 17 to Nov 12
YOUR Parcel
- ✓Your exact zone, not Sperry's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Sperry
Pull a site-specific report for your exact address in Sperry, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Sperry averages can't show:
We read public map data around Sperry — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Sperry average
How we know this about Sperry
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 Sperry’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 Sperry
When does frost risk typically end in Sperry?
The last hard freeze (28°F) in Sperry typically lands around Mar 17, 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 7.
When is the first frost in Sperry?
The first hard freeze (28°F) in Sperry typically arrives around Nov 12, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 29, so the watching starts about Oct 13 — about 240 days after the spring freeze cleared.
How long is the growing season in Sperry?
Measured between 28°F hard freezes, Sperry sees about 240 frost-free days — roughly Mar 17 through Nov 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 7 to Oct 29, about 205 days.
Is the soil safe to grow vegetables in Sperry?
The federal record around Sperry is a meaningful one — 687 documented sites, mostly Underground Storage Tanks entries (409), the nearest Underground Storage Tanks record under a tenth of a mile 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 Sperry?
From about Oct 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 Nov 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 Nov 12. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Sperry's scale — its 7b band and its 240-day season. Your yard writes its own version of Sperry'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 Sperry’s own scale
6 of the readings below were taken at Sperry's own scale — its own ~240-day season between 28°F freezes, the 1,368 acres it covers and 687 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Sperry's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Sperry's own 28°F hard-freeze dates, about Mar 17 and Nov 12 and the ~240-day span between themNOAA 1991–2020 Climate Normals
- 687 documented contamination sites on the federal record near Sperry, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Sperry's boundary and the 1,368 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~240-day seasonGrowable Ground crop-matching engine
- The ecoregion at Sperry's own centroid, the Central Irregular PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Sperry's 1,368 acres read through its county's SSURGO summaryfrom Tulsa County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Tulsa County
- The growing challenges every Oklahoma grower plans around — written at state scale, so they stay on the state guidefrom Oklahoma
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Tulsa County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Sperry's 1,368 acreswhy one lot differs from the next →
- Which side of Sperry you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,368 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Sperry-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaSperry sits outside our named growing regions, so Oklahoma as a whole is its closest context here.
Nearby growing guides