By Jagdish Reddy | 10+ Years Gardening Experience
Research Sources: Oregon State University Extension – Growing Your Own • Oregon State University Extension – Eastern Oregon Seed-Starting Schedule
Updated: August 2026
Best planting times in Oregon depend on where you garden. In western Oregon, cool-season vegetables often go in from late winter through spring. Tomatoes, peppers, beans, corn, and squash wait until soil warms and frost risk drops. Central and eastern Oregon have shorter seasons and later windows. Always check your local last frost date and soil temperature before planting.
Oregon’s Cascade Range creates a major climate divide. West of the mountains the winters stay milder and wetter. East of the mountains the air is drier, nights stay colder, and frost can arrive earlier. Within those broad patterns the coast, Willamette Valley, high desert, and eastern plateaus each have their own timing.
This Oregon planting calendar gives practical windows for vegetables, fruits, herbs, and flowers so you can match crops to your conditions instead of guessing.
A soil thermometer is one of the most useful tools an Oregon gardener can own. Calendar dates are averages. Actual soil temperature tells you whether seeds will germinate or transplants will sit and sulk. Many cool-season crops can be sown once soil temperatures are around 40°F, while warm-season crops generally perform better once soil reaches 55–60°F or higher.
Oregon Growing Regions at a Glance
| Region | Cool-season crops | Warm-season crops | Typical last frost |
|---|---|---|---|
| Western valleys (Willamette) | Late winter to spring | Late spring to early summer | Late March to mid-April |
| Oregon Coast | Late winter to spring | Late spring, short-season types | Early to late March |
| Central Oregon | Spring after soil warms | Late spring to early summer | Mid-May to early June |
| Eastern Oregon | Spring after frost risk drops | Late spring to early summer | May to early June |
Western Oregon and the coast give you a longer season and more flexibility. Central and eastern Oregon require earlier varieties, careful timing, and often row covers or other protection. Microclimates matter. A south-facing slope or a spot near a building can warm earlier. A low spot that collects cold air can frost later than the neighborhood average.
What Can I Plant Right Now in Oregon?
Look at the current month and your region. Then match the crop type.
If it is still early spring (March–April) in western Oregon or the coast, plant peas, spinach, lettuce, radishes, beets, carrots, potatoes, and hardy brassicas. In central and eastern Oregon, wait for soil to warm and focus on the hardiest of those crops later.
If it is late spring (May–early June), western gardeners can move to tomatoes, peppers, beans, corn, cucumbers, and squash once nights stay warmer. Central and eastern gardeners usually wait until late May or early June for the same crops and often use protection such as row covers or season-extension covers.
In summer, keep succession plantings of beans and salad greens going in cooler spots. Start fall brassicas and root crops so they mature before hard frost. In fall, plant garlic, overwintering greens, and cover crops. Exact timing still depends on your first fall frost and how quickly the nights cool in your specific location.
Many gardeners check the 10-day forecast along with the calendar. A stretch of warm days in March can tempt early planting, but a late cold snap can set plants back. Waiting a few extra days is often safer than rushing.
Once you know what to plant, use the Garden Planner Tool to organize your crops and plan your garden beds.
Oregon’s Growing Regions in More Detail
Western Oregon and the Willamette Valley have milder winters and dry summers. Cool-season crops do well. Warm-season crops succeed once the soil warms. Irrigation becomes essential from June onward because summer rainfall is usually scarce. Slugs are common in the wet spring and can destroy young seedlings overnight. Raised beds, copper barriers, or careful evening checks help.
The Oregon Coast stays cooler in summer. Heat-loving crops need short-season varieties or extra protection. Wind and fog can slow growth and increase disease pressure on some plants. The long frost-free stretch supports nearly year-round greens in the mildest spots, especially with light covers.
Central Oregon has high elevation, cold nights, and a short season. Frost can appear in any month, including summer in some valleys. Early and fast-maturing varieties work best. Season extension tools such as row covers, low tunnels, or cloches make a noticeable difference. Sunny days and low humidity reduce some fungal problems but increase the need for consistent watering.
Eastern Oregon brings hot days and early frosts. The season is compressed. Irrigation is required from the start. Choose reliable, early varieties and protect transplants at both ends of the season. Wind can dry soil quickly, so mulch and windbreaks help young plants establish.
These differences matter more than statewide averages. Elevation, slope, nearby water, and cold-air drainage can shift frost dates by two weeks or more in either direction. Keeping simple notes for a couple of seasons will tell you more about your own yard than any general chart.
What to Plant in Oregon Month by Month
January
Plan the garden layout and crop rotation. Order seeds while popular varieties are still available. Prune fruit trees and cane berries on dry days to reduce disease spread. In the mildest western and coastal spots you can still harvest overwintered kale, spinach, and chard. Start onion and leek seeds indoors late in the month if you want an early transplant crop. Check stored tools and repair any that need attention before the busy season starts.
February
Western Oregon and the coast: direct-sow peas, spinach, and radishes when the soil is workable and not waterlogged. Start broccoli, cabbage, and cauliflower indoors under lights. Central and eastern Oregon stay focused on indoor seed starting because outdoor soil is still too cold. Plant bare-root fruit trees and berries while they are fully dormant. This is also a good time to test soil if you have not done so in the last couple of years.
March
Western valleys: plant potatoes, peas, lettuce, spinach, beets, and carrots as soon as the ground can be worked without forming clods. Transplant hardy brassicas once they are hardened off. Coast follows a similar pattern with extra attention to wind protection. Central and eastern gardeners continue indoor starts and begin the hardiest outdoor sowings only when soil reaches about 40°F. Watch for late freezes and keep row cover ready.
April
Keep cool-season plantings going in the west. Start successive sowings of lettuce and radishes every two weeks so you do not end up with everything ready at once. Central and eastern Oregon can direct-sow peas, spinach, radishes, and early carrots once soil warms. Tomatoes, peppers, and basil stay indoors. This is a good month to prepare beds with compost and make sure irrigation systems are ready for the dry season ahead.
May
Western Oregon: transplant tomatoes after frost risk drops and soil hits 55–60°F. Direct-sow beans, corn, and summer squash once nights stay above 50°F. Coast sticks with cooler crops and short-season varieties of heat lovers. Central and eastern Oregon wait until late May or early June for heat-loving plants and often use protection. Harden off seedlings carefully so they are not shocked by sun and wind.
June
Fill beds with beans, cucumbers, summer squash, and sweet corn. Finish transplanting tomatoes and peppers. Continue succession plantings of salad greens in cooler or shaded spots because heat will cause them to bolt. Mulch around plants to hold moisture and suppress weeds. Begin consistent watering. Western Oregon summers are dry, and eastern Oregon soils can dry out quickly under wind and sun.
July
Harvest summer crops regularly so plants keep producing. Start fall broccoli, cabbage, and kale indoors or in a shaded nursery bed. Direct-sow carrots, beets, and bush beans for fall harvest in western valleys. Eastern gardeners have a tighter window and should choose fast-maturing varieties. Watch for aphids, spider mites, and powdery mildew as temperatures rise. Water deeply rather than frequently so roots grow down.
August
Transplant fall brassicas into their final spots. Sow spinach, lettuce, and radishes for cool-weather harvests. Plant garlic in late August through October, earlier in the east so cloves have time to establish before hard freezes. Keep harvesting and remove spent plants so diseases do not build up. This is also a good time to note which varieties performed well for next year’s planning.
September
Western Oregon and the coast can keep sowing hardy greens. Central and eastern Oregon finish fall plantings early because frost arrives sooner. Sow cover crops such as clover or winter rye in empty beds to protect soil over winter and add organic matter. Clean up tomato and squash plants once they finish to reduce overwintering pests and disease.
October
Plant garlic and shallots across most of the state. Western valleys can still set overwintering spinach and hardy lettuce under covers. Harvest remaining summer crops before hard frost. Green tomatoes will often ripen indoors if brought in before temperatures drop too low. Mulch garlic beds after the ground cools to protect the cloves.
November–December
Protect overwintering crops with row cover or mulch if hard freezes are forecast. Clean tools and store them properly. Review what worked and what struggled this season. Order seeds for next year while selection is good. In the mildest western and coastal spots you can still pick hardy greens on mild days. Use the quieter months to plan rotations so the same plant families do not occupy the same beds year after year.
Direct Sow or Start Indoors?
Direct sow these once soil conditions are right: peas, carrots, beans, radishes, lettuce, spinach, beets, and corn. These crops either resent transplanting or grow quickly enough from seed that an indoor start is unnecessary.
Start these indoors for a head start: tomatoes, peppers, broccoli, cabbage, and many tender flowers. They need a longer season or warmer conditions than outdoor soil provides early on.
A simple rule helps. If the plant hates root disturbance or grows quickly from seed, direct-sow it. If it needs a long season or warm soil, start it indoors. Use strong light so seedlings stay stocky rather than leggy. Harden seedlings for 7–10 days before transplanting by gradually exposing them to outdoor conditions and reducing water slightly.
For a step-by-step approach, see our guide on How to Start Seeds Indoors.
Vegetable Planting Windows
| Crop | Western OR | Central/Eastern OR | Soil temp guide |
|---|---|---|---|
| Peas, spinach, lettuce | Feb–May, Aug–Oct | April–May, Aug | 40°F+ |
| Broccoli, cabbage | March–May, July–Aug | May, Aug | Transplants after hard frost risk |
| Carrots, beets | March–July, Aug | April–June, Aug | 45°F+ |
| Potatoes | March–April | Late April–May | After hard freezes |
| Tomatoes | May 10–June 1 | Late May–early June | 55°F+ |
| Peppers | May 15–June 1 | Early–mid June | Warmer than tomatoes |
| Beans, corn, squash, cucumbers | May–June | Late May–June | 60°F+ |
These are guidelines drawn from Oregon State University Extension regional advice (see the Growing Your Own guide and the Eastern Oregon seed-starting schedule). Always adjust for your exact frost dates and current soil temperature.
Tomatoes need warm soil and nights above 45–50°F. Early or short-season varieties such as Oregon Spring, Siletz, and Legend are often recommended for cooler Oregon sites. Plant them deep so roots form along the buried stem. Peppers lag behind tomatoes and prefer even warmer conditions. Small-fruited types finish faster in short seasons and are often more reliable east of the Cascades.
Beans, corn, cucumbers, and squash planted in cold soil often rot or grow poorly. Wait for warmth. Lettuce and spinach bolt quickly in heat, so plant early and late or give them afternoon shade once summer arrives. Carrots need loose soil more than perfect timing. Heavy clay causes forked roots. Raised beds or deep working of the soil helps.
If you’re building or refreshing a raised bed, the Raised Bed Soil Calculator can help estimate how much soil you’ll need.
Cool-season crops planted in early spring often produce in late spring to early summer. Warm-season crops planted in May or June usually yield from midsummer into early fall. Fall plantings of brassicas and greens mature in cooler weather and can continue after light frost. Choose varieties whose days-to-maturity fit your remaining season.
Succession planting works well for many crops. Sow a short row of lettuce or radishes every two weeks instead of planting the whole packet at once. In western Oregon you can often get two or three plantings of many cool-season crops. In shorter eastern seasons, focus on one well-timed crop of each and choose the earliest varieties available.
Before planting, use the Plant Spacing Calculator to determine how much room to give each crop.
Fruit, Herb, and Flower Planting Windows
| Category | Typical Oregon window |
|---|---|
| Strawberries | Early spring or late summer |
| Blueberries | Spring or fall |
| Fruit trees (apple, pear, cherry, plum) | Late winter to early spring while dormant |
| Raspberries and blackberries | Early spring while dormant |
| Basil | After frost risk ends and soil is warm |
| Cilantro and dill | Early spring and again in late summer |
| Parsley | Early spring; handles cooler conditions |
| Rosemary, thyme, oregano | Spring; protect or pot in colder sites |
| Annual flowers (sunflowers, zinnias, marigolds, cosmos) | After frost risk |
| Perennials | Spring or fall |
Plant bare-root fruit trees and cane berries while dormant. Western Oregon has a longer window. Central and eastern sites should finish before growth starts and the soil dries. Dig a hole wide enough for the roots to spread without circling. Do not plant too deep. Water well after planting and mulch to keep moisture even.
Strawberries do well in raised beds where drainage is poor. June-bearing types give one main crop. Ever-bearing and day-neutral types spread the harvest over a longer period. Blueberries prefer acidic soil, which much of western Oregon already has. Keep their roots moist and mulched. They dislike drying out in summer.
Raspberries and blackberries benefit from trellising for easier picking and better air flow. Primocane (fall-bearing) raspberries are simpler for many home gardens because pruning is less complicated. Thornless blackberry varieties reduce harvest frustration. Plant in full sun and give them room to grow.
Basil slows or dies if nights stay cold. Wait until both soil and air are reliably warm. Cilantro and dill bolt fast in heat, so successive sowings and partial shade help. Parsley handles cooler conditions better and can be started earlier. Oregano spreads readily. Give it room or grow it in a container so it does not take over.
Annual flowers such as sunflowers, zinnias, marigolds, and cosmos go in after frost risk. Direct-sow or transplant. Start tender annuals indoors if you want earlier blooms. Perennials can go in spring or fall. Fall planting gives roots time to settle before summer heat. Group pollinator plants and prefer single-flowered varieties that offer nectar and pollen. Leave some stems and seed heads over winter for habitat.
To find suitable pollinator plants, try the Pollinator Plant Finder.
Frost Dates and How to Use Them
Your local frost dates are an important starting point for deciding when to plant frost-sensitive crops. Use the calculator below to estimate your last spring frost and first fall frost dates before planning your planting schedule.
Frost Date Calculator
Find last spring & first fall frost dates — know when to plant & harvest
Last spring frost and first fall frost set the practical length of your season. Western Oregon and the coast often have last frosts from mid-March to mid-April. Central and eastern Oregon commonly see last frosts from mid-May into early June.
First fall frost can arrive in September in the coldest spots and stretch into November in milder western areas. Use the average date as a planning guide, then watch the forecast. Soil temperature is still the better final signal for planting.
Light frost improves flavor in many brassicas and greens. Hard freezes end the season for tender crops such as tomatoes, basil, and summer squash. Keep a simple garden journal for a few years. Note the actual dates of the last spring frost and first fall frost in your own yard. Those records become more useful than statewide averages.
Row covers, low tunnels, and cloches can add several degrees of protection and extend both ends of the season. Remove or open covers on warm days so plants do not overheat and so pollinators can reach flowering crops.
USDA Zones in Oregon
Oregon ranges from roughly zone 5 in cold mountain and high-desert areas to zone 9 along the milder south coast. Most Willamette Valley gardeners fall in zones 8a–8b. Portland metro can reach 8b–9a. Central and eastern sites are often 5–6.
Zones describe winter cold hardiness for perennials and woody plants. They help you choose trees, shrubs, and perennial flowers that can survive your average lowest winter temperatures. Frost dates and soil temperature matter more for annual vegetables. A plant rated for zone 5 may survive winter in a colder microclimate if it is protected, while a zone 8 plant may struggle in an exposed eastern Oregon site even if the map says otherwise.
Simple Ways to Extend Your Oregon Growing Season
Start seeds indoors when outdoor conditions are still too cold. Harden seedlings carefully over a week or more. Wait for warm soil before planting heat lovers. Use floating row cover for unexpected frost and early insect protection. Open covers on warm days when plants need pollination or when temperatures rise enough to risk overheating.
Succession planting keeps harvests coming. Sow small amounts of lettuce, radishes, and beans every two to three weeks. In western Oregon you can often get two or three plantings of many cool-season crops. In shorter eastern seasons, focus on one well-timed crop of each and choose the earliest varieties.
Containers work well for small spaces, poor soil, or patio gardens. Use a quality potting mix, make sure pots drain freely, and water more often than in-ground beds because containers dry out faster. Tomatoes, peppers, herbs, and salad greens all succeed in containers when given enough root room and consistent moisture. Dark-colored pots warm soil faster in spring, which can help heat-loving plants.
Mulch helps hold moisture, suppress weeds, and moderate soil temperature. In western Oregon it also reduces the impact of heavy winter rains on bare soil. In eastern Oregon it slows evaporation under hot, dry winds.
For a quick estimate of how much mulch your garden beds need, use the Mulch Calculator
Common Questions About Gardening in Oregon
What month is best for starting a vegetable garden in Oregon? March and April are the main starting months for cool-season crops in western Oregon. Warm-season crops usually go in later. Central and eastern Oregon start later because of colder conditions and later frost dates.
What vegetables are easiest to grow in Oregon? Lettuce, kale, radishes, peas, beans, zucchini, and potatoes succeed for most beginners. They tolerate Oregon’s variable weather better than more demanding crops and give relatively quick results.
When can you safely plant tomatoes outdoors in Oregon? After the average last frost and when soil reaches at least 55°F. For most western gardeners that falls between mid-May and early June. Central and eastern Oregon typically wait until late May or early June and often use protection for the first weeks.
What can you plant in Oregon during the fall? Garlic, overwintering spinach and kale, lettuce, radishes, and cover crops. Western Oregon has a longer fall window than the high desert. Choose fast-maturing varieties if your first frost arrives early.
Can you grow vegetables year-round in Oregon? In the mildest coastal and Willamette Valley locations, yes, with hardy greens and simple protection such as row covers. Central and eastern Oregon have a clear dormant period in winter when outdoor production largely stops.
For detailed regional schedules and variety recommendations, see the Oregon State University Extension guides: https://extension.oregonstate.edu/catalog/em-9027-growing-your-own
Eastern Oregon seed-starting schedule – https://extension.oregonstate.edu/catalog/pub/eastern-oregon-seed-starting-schedule
Disclaimer: Information on this site is for educational purposes only. Results vary by climate, soil, weather, and growing conditions. For region-specific advice, consult your local USDA Cooperative Extension Service before making major gardening or soil changes.