Sequoyah, Oklahoma, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Among the crops suited to this profile: cabbage, hazelnut, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Sequoyah, 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 Sequoyah 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 Sequoyah — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Sequoyah — the short answer
Sequoyah, Oklahoma: USDA zone 7a, about 235 days between hard freezes, across 5K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 22
- 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
- ~235
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 5K 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 Sequoyah's average, not your lot's — a low corner or a tree line moves it. Against Sequoyah's 235-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Sequoyah
Each reading below is measured for Sequoyah itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSequoyah runs about 235 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
MeasuredSequoyah 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 Sequoyah is in
Sequoyah sits in the Central Irregular Plains — EPA Level III, inside the wider Great Plains. That is read at Sequoyah's own centroid rather than borrowed from Rogers County.
What Grows in Sequoyah
Every plant below cleared Sequoyah's own zone 7a and its 235-day season. Each card opens that plant's Oklahoma profile. How we score.
Is it too late to plant in Sequoyah?
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 22; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 22 (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. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
What's on the federal record near Sequoyah
Closest first, within ~10 miles of Sequoyah. Listing isn't leaking, and distance isn't exposure.
- CLAREMOREPFAS · 0.9 mi
- WALMART SUPERCENTER #3055Brownfields · 1.0 mi
- Froman Oil Company, IncUnderground Storage Tanks · 2.0 mi
- Sequoyah SchoolUnderground Storage Tanks · 2.1 mi
- Lewis GroceryUnderground Storage Tanks · 2.3 mi
- STARLITE TRAILERS INCToxics Release Inventory · 2.7 mi
- BAKER HUGHESToxics Release Inventory · 3.0 mi
- BAKER HUGHESBrownfields · 3.0 mi
- AXH AIR COOLERSBrownfields · 3.0 mi
- ODOT Rogers Co Maintenance HdgUnderground Storage Tanks · 3.0 mi
- APAC OKALHOMA ASPHALT PLANT NO. 4245Toxics Release Inventory · 3.1 mi
- WORTHINGTON CYLINDERToxics Release Inventory · 3.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Sequoyah'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 Sequoyah.
Total Sites
137
within ~10 miles of Sequoyah
Risk Level
Moderate
Highest-severity
18 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Sequoyah
Severity Distribution
within ~10 miles of Sequoyah
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Sequoyah, two things run higher than the national average within ~10 miles of Sequoyah — PFAS (3 sites) and Toxics Release Inventory (18 sites). That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Sequoyah
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 Sequoyah average
Your land is one point inside Sequoyah
Everything above resolves to Sequoyah as a whole — one PHZM band and one 28°F frost record, read across 5K 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 Sequoyah Average
Sequoyah Average
- ●USDA Zones 7a, averaged across Sequoyah
- ●One soil character for all of Sequoyah
- ●Frost dates read at Sequoyah's scale: Mar 22 to Nov 12
YOUR Parcel
- ✓Your exact zone, not Sequoyah's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Sequoyah
Pull a site-specific report for your exact address in Sequoyah, Oklahoma — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Sequoyah averages can't show:
We read public map data around Sequoyah — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Sequoyah average
How we know this about Sequoyah
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 Sequoyah’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 Sequoyah
When does frost risk typically end in Sequoyah?
The last hard freeze (28°F) in Sequoyah typically lands around Mar 22, 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 12.
When is the first frost in Sequoyah?
The first hard freeze (28°F) in Sequoyah 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 235 days after the spring freeze cleared.
How long is the growing season in Sequoyah?
Measured between 28°F hard freezes, Sequoyah sees about 235 frost-free days — roughly Mar 22 through Nov 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 12 to Oct 29, about 200 days.
Is the soil safe to grow vegetables in Sequoyah?
The federal record around Sequoyah shows 137 documented sites, mostly Underground Storage Tanks entries (86), the nearest PFAS record about 0.9 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 Sequoyah?
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 Sequoyah's scale — its 7a band and its 235-day season. Your yard writes its own version of Sequoyah'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 Sequoyah’s own scale
6 of the readings below were taken at Sequoyah's own scale — its own ~235-day season between 28°F freezes, the 5,082 acres it covers and 137 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Sequoyah's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Sequoyah's own 28°F hard-freeze dates, about Mar 22 and Nov 12 and the ~235-day span between themNOAA 1991–2020 Climate Normals
- 137 documented contamination sites on the federal record near Sequoyah, the closest PFAS record about 0.9 miles out from the town centreFederal environmental registers
- Sequoyah's boundary and the 5,082 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~235-day seasonGrowable Ground crop-matching engine
- The ecoregion at Sequoyah's own centroid, the Central Irregular PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Sequoyah's 5,082 acres read through its county's SSURGO summaryfrom Rogers County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Rogers 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 Rogers County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Sequoyah's 5,082 acreswhy one lot differs from the next →
- Which side of Sequoyah you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,082 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest PFAS record about 0.9 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 Sequoyah-wide figureread your own land →
More in Oklahoma
Wider growing context
What grows across OklahomaSequoyah sits outside our named growing regions, so Oklahoma as a whole is its closest context here.