The Pacific Northwest spans USDA hardiness zones 7a-10a — a zone band wide enough that plant choice, not possibility, is the interesting question.
The maritime Northwest west of the Cascade crest — mild, wet winters and dry summers behind berries, tree fruit, and lush cool-season gardens. (Union of the west-side ecoregions.) Expect avocado, meyer lemon, tomato, and grape to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
The Pacific Northwest spans California, Oregon and Washington. Its footprint follows the EPA Level III ecoregion boundary; the counties linked below are representative of the region, not an exhaustive list.
Your yard isn't the whole Pacific Northwest.
The Pacific Northwest spans USDA zones 7a-10a, but your parcel sits in exactly one — and slope, tree cover, and low spots nudge it further. Enter your address and we'll score 1,112 plants against your land's actual soil, sun, and frost.
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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Quick Facts
USDA Zones
7a-10a
States
3
Counties
39
Defined by
Ecoregion
Hardiness Zone Range
What Grows in the Pacific Northwest
Plants matched to the Pacific Northwest's USDA zones 7a-10a — each links to its full growing profile.
Native Plants Suited to the Pacific Northwest
US-native plants (USDA PLANTS, Lower 48) whose hardiness range overlaps the Pacific Northwest’s USDA zones 7a-10a. Zone overlap is a starting filter, not a range map — for plants documented native to your county, your state’s Cooperative Extension or a native-plant society is the authority.
Safe to Grow Here?
What the federal record shows across the Pacific Northwest — and how to grow with it.
A growing region spans many local records, and contamination is a per-place fact — not a regional verdict. Nationwide we track 1.8M documented sites across 9 federal source types; open the map outlined to the Pacific Northwest to see exactly what's on record where you grow.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
Your Specific Parcel Matters
the Pacific Northwest Average
- ●USDA Zones 7a-10a
- ●Generic soil type for the area
- ●State-average frost dates
YOUR Parcel
- ✓Your exact hardiness zone
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in the Pacific Northwest
Pull a site-specific report for your exact address in the Pacific Northwest — soil, sun, drainage, frost risk, contamination, and scored plant recommendations.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
Key Growing Facts for the Pacific Northwest
- USDA Hardiness Zones: 7a-10a (USDA PHZM 2023, aggregated across the region)
- States: California, Oregon, and Washington
- Counties covered: 39
- Region boundary: an EPA Level III ecoregion (an area sharing climate, soils, and vegetation)
Zone data: USDA ARS Plant Hardiness Zone Map 2023. Region boundary: curated county clusters and EPA Level III ecoregions. County boundaries: US Census TIGER/Line 2025.
Frequently Asked Questions
What hardiness zone is the Pacific Northwest?
The Pacific Northwest spans USDA hardiness zones 7a-10a, aggregated from the USDA Agricultural Research Service Plant Hardiness Zone Map 2023 across the region's counties. Zones reflect average annual extreme minimum temperatures from 1991–2020 data.
What grows well in the Pacific Northwest?
The Pacific Northwest's conditions suit plants such as Avocado, Meyer Lemon, Tomato, Grape, Fig, California Poppy. For site-specific recommendations scored against your parcel's soil, drainage, and sun data, run the Growable Ground report for your address.
Which states does the Pacific Northwest cover?
The Pacific Northwest spans California, Oregon, and Washington. Each state's full growing guide is linked below.