Oregon Planting Zones – Growing Zones Guide

What Planting Zone Is Oregon In?

On the 2023 USDA Plant Hardiness Zone Map, Oregon runs roughly from zone 5a to zone 10a, based on 30-year averages of the coldest winter temperatures (1991–2020). Colder zones cover the higher Cascades, Central Oregon’s elevated plateaus, and parts of Eastern Oregon. The warmest zones hug the southern coast and select low-elevation valleys. Most home gardens fall between zones 6b and 9a.

• Oregon Coast: Astoria, Tillamook, Lincoln City, Newport, Florence, Coos Bay, Bandon, Gold Beach, and Brookings typically land in zones 8b–10a, with cool summers, mild winters, abundant rain, and very small temperature swings.
• Willamette Valley & Portland Metro: Portland, Salem, Albany, Corvallis, Eugene, McMinnville, and Newberg are generally zones 8a–9a, with mild, wet winters, dry summers, and long growing seasons.
• Southern Oregon & Rogue Valley: Roseburg, Grants Pass, Medford, Jacksonville, and Ashland are often zones 7a–9a, with hot, dry summers, comparatively mild winters, and excellent heat for fruits and wine grapes.
• Central Oregon High Desert: Bend, Redmond, Sisters, La Pine, Prineville, and Madras sit around zones 5a–7a, with cold winters, short growing seasons, and big day–night temperature swings.
• Eastern Oregon Plateaus & Mountains: Pendleton, La Grande, Baker City, John Day, Burns, and Ontario fall in roughly zones 5a–7b, with cold, snowy winters and warm, dry summers.
• Columbia Gorge & Foothills: Troutdale, Hood River, The Dalles, and nearby communities range from about zones 6b–8b, balancing marine influence, strong winds, and elevation changes.

USDA Hardiness Zone Maps for Oregon

The updated 2023 USDA Plant Hardiness Zone Map uses 30-year climate normals (1991–2020) and higher-resolution terrain and elevation data than earlier versions. In Oregon, the map shows colder blues and purples across the Cascades, Blue and Wallowa Mountains, and high Central Oregon plateaus, with warmer greens, yellows, and oranges along the Willamette Valley, Rogue Valley, and especially the south coast near Brookings and Gold Beach.

A simplified Oregon planting zone map based on the 2023 USDA Plant Hardiness Zone Map (1991–2020 climate data).

Use the map alongside your ZIP code to pinpoint your Oregon garden zone. Look up your Oregon planting zone by ZIP code using the USDA tool, then come back here or visit our Plant Finder for plants tailored to your zone, elevation, and site conditions.

Oregon Growing Zones by Region

Like most of the Pacific Northwest, Oregon’s climate is shaped by mountains, ocean, river valleys, and elevation. Coastal fog, marine layers, Gorge winds, rain shadows, cold-air drainage, urban heat islands, and reflected heat from pavement and buildings can nudge your yard a half-zone – or more – warmer or colder than the official map. Zone boundaries can shift quickly over short distances (for example, a low pocket outside Bend may be much colder than a nearby hillside garden).

Oregon Coast (Approx. Zones 8b–10a)

This region includes Astoria, Seaside, Cannon Beach, Tillamook, Lincoln City, Newport, Florence, Coos Bay, Bandon, Gold Beach, and Brookings.

• Cool summers, mild winters, and abundant rain keep soils moist and temperatures fairly even, with rare hard freezes.
• Excellent for greens, brassicas, root crops, berries, hydrangeas, rhododendrons, ferns, and moisture-loving perennials.
• Choose plants that handle low light, wind, and salt-laden air; raised beds and improved drainage help in heavy, wet soils.

Willamette Valley & Portland Metro (Approx. Zones 8a–9a)

This region includes Portland, Gresham, Hillsboro, Beaverton, Tigard, Salem, Albany, Corvallis, and Eugene.

• Marine influence brings cool, wet winters and dry, pleasantly warm summers; snow and hard freezes are occasional rather than routine at lower elevations.
• Ideal for berries, hazelnuts, fruit trees, wine grapes, culinary herbs, cool-season vegetables, and long-blooming ornamentals.
• Microclimates abound: sheltered urban courtyards and south-facing walls can be a half-zone warmer than open, windy edges or cold low spots along rivers and creeks.

Southern Oregon & Rogue Valley (Approx. Zones 7a–9a)

Roseburg, Grants Pass, Medford, Jacksonville, Ashland, and nearby valleys share warm summers and comparatively mild winters for the Pacific Northwest.

• Hot, dry summers and relatively low humidity favor wine grapes, pears, peaches, and heat-loving vegetables.
• Winters are cooler than the coast and Willamette Valley but generally milder than Central or Eastern Oregon; cold-air pockets and valley bottoms can run a bit colder than hillsides.
• Drip irrigation, mulching, and fire-wise plant selection are important as summer drought and wildfire risk increase.

Central Oregon High Desert (Approx. Zones 5a–7a)

Bend, Redmond, Sisters, La Pine, Prineville, and Madras sit on the east side of the Cascades in a dry, high-elevation climate.

• Cold, snowy winters, low humidity, strong sun, and chilly nights – even in midsummer – shape plant choices and timing.
• Great for cold-hardy trees, conifers, grasses, and perennials; vegetables often need season extension, quick-maturing varieties, and frost protection on both ends of the season.
• Raised beds, windbreaks, low tunnels, and careful irrigation help offset short growing seasons and drying winds.

Eastern Oregon Plateaus & Mountains (Approx. Zones 5a–7b)

This region includes Pendleton, Hermiston, La Grande, Baker City, John Day, Burns, Ontario, and smaller farming and ranching communities.

• Cold winters and warm, dry summers with relatively low humidity; frost can arrive early in fall and linger late in spring.
• Excellent for cool-season crops, hardy grasses, forage plants, and drought-tolerant ornamentals; warm-season vegetables may need careful timing and protection.
• Pay close attention to slope, elevation, and exposure; south-facing slopes warm earlier and stay frost-free longer than valley bottoms.

Best Plants for Oregon Planting Zones

Once you know your Oregon planting zone – and whether you garden in a cool coastal pocket, a mild Willamette Valley backyard, a warm Rogue Valley slope, or a frosty high-desert plateau – you can work with your climate instead of against it. Focus on plants that tolerate cool, wet winters, summer drought, acidic or clay soils in many regions, and wide day–night temperature swings. Choose perennials rated for zones 5–10, and time annual plantings around your frost dates and summer heat.

Vegetables for Oregon Growing Zones

• Cool-season crops (fall–spring in much of western Oregon; spring and fall inland): lettuce, spinach, arugula, kale, collards, peas, broccoli, cabbage, carrots, beets, turnips, and radishes.
• Warm-season crops (after last frost inland; late winter through spring in the mildest 8b–10a west-side pockets): tomatoes, peppers, summer squash, pumpkins, cucumbers, snap beans, sweet corn, and melons where summers are warm enough (Rogue Valley, drier interior valleys, and sheltered Willamette sites).
• High-elevation & frost-prone gardens: Quick, cold-tolerant varieties of peas, lettuce, spinach, baby carrots, radishes, Asian greens, and compact determinate tomatoes grown under protection in zones 5–7.

Fruits & Trees for Oregon Hardiness Zones

• Valleys & foothills (zones 7–9): apples, pears, peaches, plums, cherries, almonds in warmer spots, European and Asian plums, and wine or table grapes matched to local heat and disease pressure.
• Coastal & mild urban microclimates (8b–10a): Hardy figs, pomegranates, olives, and select citrus varieties in the warmest, most protected sites, often with winter protection or container culture.
• Small fruits (many zones 5–9): strawberries, blackberries, raspberries, blueberries, and currants thrive with acidic, organic-rich soil and regular water.

Flowers & Ornamentals for Oregon Garden Zones

• Sun-loving bloomers: salvias, yarrow, coneflowers, black-eyed Susan, blanket flower, and hardy daisies suit sunny, well-drained spots once established.
• Reliable perennials: lavender, catmint, ornamental grasses, penstemons, hardy geraniums, and hellebores offer long seasons of interest.
• Structural plants: Shade trees, cold-hardy agaves and succulents in the driest areas, dwarf conifers, and evergreen shrubs provide year-round backbone in mixed borders.

Native Plants for Oregon Landscapes

Pacific Northwest and Oregon native plants are adapted to local soils, rainfall patterns, and seasonal drought – and they feed pollinators, birds, and beneficial insects. Mix native wildflowers, shrubs, trees, and grasses for a resilient, habitat-rich landscape that feels authentically Oregon.

• Native wildflowers: Oregon sunshine (Eriophyllum lanatum), camas, poppies, lupines, columbines, and native milkweeds.
• Native grasses: tufted hairgrass, Roemer’s fescue, native bunchgrasses, and prairie blends for meadows and low-mow lawns.
• Native shrubs & trees: Oregon grape (Mahonia), red-flowering currant, vine maple, serviceberry, snowberry, and regional oaks and conifers (Douglas-fir, western redcedar, ponderosa pine) where appropriate.
• Cacti & succulents (drier sites): cold-hardy prickly pear, hens-and-chicks, sedums, and select yuccas for bold texture and low-water planting in the driest parts of the state.

Interactive Oregon Planting Calendar (General Guide)

Tap a month to see what to plant in Oregon by zone. Use this as a starting point, then adjust for your exact frost dates, elevation, and whether you garden on the coast, in the Willamette or Rogue Valley, in Central Oregon, or in Eastern Oregon’s plateaus and mountains.

Oregon Gardening Tips by Zone

Oregon gardeners juggle cool, wet winters; summer drought; coastal fog and marine layers; strong Gorge winds; high-desert cold; and a wide spread of hardiness zones and microclimates. These tips help plants thrive from zones 5a to 10a:

• Know your microclimate. A sheltered Portland courtyard or south-coast patio can behave like a warmer zone 10, while a Central Oregon frost pocket or mountain meadow may feel a full zone colder than the map.
• Time your seasons. On the west side, prime vegetable season often runs from early spring through early summer and again in fall; in Central and Eastern Oregon, focus on the frost-free window and rely heavily on season extension.
• Build better soil. Many Oregon soils are clayey, compacted, or low in organic matter – add compost regularly, protect soils with mulch, and consider raised beds for vegetables in poorly drained spots.
• Water wisely. Use drip irrigation, deep but infrequent watering, and thick mulch to conserve moisture and buffer roots from heat, especially where summer drought and water restrictions are common.
• Plan for wind and sun. Windbreaks, trellises, fences, and living screens protect plants from Gorge winds and high-desert gusts, while smart shade and understory planting protect roots from intense summer sun.
• Use season-extension tools. Row covers, low tunnels, and cold frames stretch the season in Central and Eastern Oregon and help protect warm-season crops from surprise frosts statewide.
• Choose cool- and drought-tolerant varieties. Favor vegetable varieties bred for short seasons or cool summers in the north, and ornamentals labeled “drought tolerant” or “xeric” for low-rainfall regions.
• Plan for fire and wildlife. In fire-prone areas, maintain defensible space and avoid highly flammable plantings near structures. Deer, slugs, gophers, and rabbits are common visitors – use fencing, barriers, and resistant plant choices around high-value beds.
• Lean on native and region-adapted plants. Use natives as a low-water backbone, then layer in edibles and higher-water plants where you can irrigate efficiently.