Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 30, 2026

Planting zone for Sapulpa, OK

Sapulpa, OK is in USDA zone 7b across its 2 ZIP codes. The median last spring frost is March 30 and the first fall frost November 4.

Sapulpa on the zone map

Outlined: its 1 ZIP code areas · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone7b5 to 10 °F

ZIP codes2

Last frostMar 30

First frostNov 4

Growing season220 days

7b 2 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

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Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Sapulpa, OK

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostMarch 30median — 50% chance of a later frost

Safe for tender plantsApril 17only 10% chance of frost after

First fall frostNovember 4median — 10% chance by Oct 21

Growing season220 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 15 and returns around November 14.

From the NOAA station Tulsa R L Jones Jr Airport, OK, elevation 640 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in Sapulpa

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 16 – Mar 2

SpinachSow outdoors · Feb 16 – Mar 9

Broccoli, cabbageStart indoors · Jan 19 – Feb 2

Broccoli, cabbageTransplant · Mar 9 – Mar 23

Onion setsPlant outdoors · Mar 2 – Mar 16

PotatoesPlant outdoors · Mar 9 – Mar 23

LettuceSow outdoors · Mar 2 – Mar 16

Carrots, beetsSow outdoors · Mar 9 – Mar 23

TomatoesStart indoors · Feb 2 – Feb 16

TomatoesTransplant · Apr 6 – Apr 20

Peppers, eggplantStart indoors · Jan 19 – Feb 2

Peppers, eggplantTransplant · Apr 13 – Apr 27

BeansSow outdoors · Apr 6 – Apr 20

Sweet cornSow outdoors · Apr 6 – Apr 20

Cucumbers, squashSow outdoors · Apr 6 – Apr 20

Fall lettuce, spinachSow outdoors · Sep 9 – Sep 23

GarlicPlant cloves · Oct 21 – Nov 25

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 30) and first fall frost (Nov 4) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 74067 came on Feb 12 — 13 days earlier than the 1991–2020 average (Feb 25).

average
Feb 252026
Feb 12

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 7b in Oklahoma

518 plants native to the lower 48 states, recorded in Oklahoma, and rated by the USDA to survive 5 °F or colder — the bottom of zone 7b. Each links to its USDA PLANTS profile.

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Sapulpa, OK.

Soil in Sapulpa, OK

The soil mapped at the center of ZIP 74067 is Port — silt loam, well drained.

TextureSilt loama good balance for most vegetables

pH7.0neutral; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter2%moderate

Hydrologic groupBwater soaks in moderately

Farmland classprime farmlandUSDA classification

Map unit: Port silt loam, 0 to 1 percent slopes, occasionally flooded.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 74067; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Sapulpa, OK

Summer high94 °Faverage high, July

Winter low28 °Faverage low, January

Hot days81days a year at 90 °F or more

Freezing nights81nights a year at 32 °F or less

Growing degree days5,363base 50 °F — the season’s usable heat

Longest day14 h 36 mindaylight on June 21

Shortest day9 h 43 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation42.1 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Tulsa R L Jones Jr Airport, OK (6 mi away); precipitation: Tulsa R L Jones Jr Airport, OK (6 mi away). Daylight is calculated from latitude.

ZIP codes in Sapulpa

Oklahoma planting zones →

Questions about Sapulpa

What planting zone is Sapulpa, OK?

Sapulpa, OK is in USDA hardiness zone 7b on the 2023 map (7b: 5 to 10 °F).

When is the last frost in Sapulpa, OK?

The median last spring frost is March 30 and the median first fall frost is November 4 (NOAA 1991–2020 normals, Tulsa R L Jones Jr Airport station).

When can I plant a garden in Sapulpa, OK?

Cool-season crops like peas and spinach go in around Feb 16 – Mar 9; tomatoes, peppers, beans and squash after about Apr 6, once frost risk has passed.

What kind of onions grow in Sapulpa, OK?

Intermediate onions: the longest day is 14 h 36 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

How much rain and snow does Sapulpa, OK get?

About 42.1 inches of precipitation a year (NOAA 1991–2020 normals).