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

Planting zone for 97026 — Gervais, OR

ZIP code 97026 (Gervais, Marion County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 28 and the first fall frost November 10.

Where ZIP 97026 is

Outlined: the ZIP code area · 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.

Zone8b15 to 20 °F
Coldest night−9.4 to −6.7 °C
Last frostMar 28
First frostNov 10
2012 zone8b

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Gervais, OR…

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 Gervais, OR

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 28median — 50% chance of a later frost
Safe for tender plantsApril 19only 10% chance of frost after
First fall frostNovember 10median — 10% chance by Oct 25
Growing season227 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 25 and returns around November 28.

From the NOAA station Silverton, OR — 11 miles away, elevation 407 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 97026

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 14 – Feb 28
SpinachSow outdoors · Feb 14 – Mar 7
Broccoli, cabbageStart indoors · Jan 17 – Jan 31
Broccoli, cabbageTransplant · Mar 7 – Mar 21
Onion setsPlant outdoors · Feb 28 – Mar 14
PotatoesPlant outdoors · Mar 7 – Mar 21
LettuceSow outdoors · Feb 28 – Mar 14
Carrots, beetsSow outdoors · Mar 7 – Mar 21
TomatoesStart indoors · Jan 31 – Feb 14
TomatoesTransplant · Apr 4 – Apr 18
Peppers, eggplantStart indoors · Jan 17 – Jan 31
Peppers, eggplantTransplant · Apr 11 – Apr 25
BeansSow outdoors · Apr 4 – Apr 18
Sweet cornSow outdoors · Apr 4 – Apr 18
Cucumbers, squashSow outdoors · Apr 4 – Apr 18
Fall lettuce, spinachSow outdoors · Sep 15 – Sep 29
GarlicPlant cloves · Oct 27 – Dec 1
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 28) and first fall frost (Nov 10) 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 97026 came on Feb 22 — 4 days later than the 1991–2020 average (Feb 18).

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 8b in Oregon

661 plants native to the lower 48 states, recorded in Oregon, and rated by the USDA to survive 15 °F or colder — the bottom of zone 8b. Each links to its USDA PLANTS profile.

Trees 43

Shrubs 132

Wildflowers & perennials 305

Grasses 166

Vines 2

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 Gervais, OR.

Soil in Gervais, OR

The soil mapped at the center of ZIP 97026 is Concord — silt loam, poorly drained.

TextureSilt loama good balance for most vegetables
pH6.1slightly acidic; most vegetables like 6.0–7.0
DrainagePoorly drainedconsider raised beds
Organic matter3%moderate
Hydrologic groupC/Dslow when drained; wet otherwise
Farmland classPrime farmland if drainedUSDA classification

Map unit: Concord silt loam.

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 97026; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Gervais, OR

Summer high80 °Faverage high, July
Winter low35 °Faverage low, January
Hot days9days a year at 90 °F or more
Freezing nights44nights a year at 32 °F or less
Growing degree days2,332base 50 °F — the season’s usable heat
Longest day15 h 38 mindaylight on June 21
Shortest day8 h 45 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation41.9 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°32 °FJanuary: average high 47 °F, low 35 °F 47°35° JanFebruary: average high 50 °F, low 36 °F 50°36° FebMarch: average high 55 °F, low 38 °F 55°38° MarApril: average high 60 °F, low 42 °F 60°42° AprMay: average high 67 °F, low 47 °F 67°47° MayJune: average high 72 °F, low 51 °F 72°51° JunJuly: average high 80 °F, low 56 °F 80°56° JulAugust: average high 80 °F, low 56 °F 80°56° AugSeptember: average high 74 °F, low 52 °F 74°52° SepOctober: average high 63 °F, low 45 °F 63°45° OctNovember: average high 52 °F, low 39 °F 52°39° NovDecember: average high 46 °F, low 35 °F 46°35° Dec

Precipitation by month inches

0″2″4″6″8″January: 6.24 in precipitation 6.2 JanFebruary: 4.36 in precipitation 4.4 FebMarch: 4.64 in precipitation 4.6 MarApril: 3.49 in precipitation 3.5 AprMay: 2.50 in precipitation 2.5 MayJune: 1.39 in precipitation 1.4 JunJuly: 0.37 in precipitation 0.4 JulAugust: 0.44 in precipitation 0.4 AugSeptember: 1.61 in precipitation 1.6 SepOctober: 3.60 in precipitation 3.6 OctNovember: 6.24 in precipitation 6.2 NovDecember: 7.02 in precipitation 7.0 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Silverton, OR (11 mi away); precipitation: Keizer 1.4 Ssw, OR (9 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

Oregon planting zones →

Questions about 97026

What planting zone is ZIP code 97026?

ZIP code 97026 (Gervais, OR) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Gervais, OR?

The median last spring frost (32 °F) near 97026 is March 28; after April 19 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Silverton station.

When is the first frost in Gervais, OR?

The median first fall frost near 97026 is November 10, giving a median frost-free growing season of 227 days.

When should I plant tomatoes in 97026?

Start tomato seeds indoors around Jan 31 – Feb 14 and set transplants outside around Apr 4 – Apr 18, one to three weeks after the median last frost.

How much rain and snow does 97026 get?

About 41.9 inches of precipitation a year (NOAA 1991–2020 normals, Keizer 1.4 Ssw station).

How hot do summers get in Gervais, OR?

The average high peaks at 80 °F in July, with about 9 days a year at 90 °F or more.

What kind of soil does 97026 have?

The USDA soil survey maps Concord at the center of ZIP 97026: silt loam, poorly drained, pH about 6.1 (slightly acidic).

Did spring come early in Gervais, OR in 2026?

Spring leaf-out near 97026 came on Feb 22 in 2026, 4 days later than the 1991–2020 average (Feb 18), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Gervais, OR?

Long-day onions: the longest day near 97026 is 15 h 38 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).