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When to Plant Potato in Oregon

🌱

Direct Sow Outdoors

Sunday, February 15, 2026

State

Oregon

USDA Zones

5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b

Avg Last Frost

Sunday, March 15, 2026

Cities Covered

372

Oregon Planting Schedule by Zone

Oregon spans 9 zones — find yours below for the most accurate dates.

Zone Last Frost Direct Sow
5b Saturday, April 25, 2026 Saturday, March 28, 2026
6a Monday, April 20, 2026 Monday, March 23, 2026
6b Wednesday, April 15, 2026 Wednesday, March 18, 2026
7a Friday, April 10, 2026 Friday, March 13, 2026
7b Sunday, April 5, 2026 Sunday, March 8, 2026
8a Friday, March 20, 2026 Friday, February 20, 2026
8b Sunday, March 15, 2026 Sunday, February 15, 2026
9a Friday, February 20, 2026 Friday, January 23, 2026
9b Tuesday, February 10, 2026 Tuesday, January 13, 2026

Dates based on average last frost. Check your local forecast before planting.

🌿 About Potato

Scientific Name Solanum tuberosum
Days to Maturity 90 days
Plant Type Tuber
Sun Full Sun (6+ hours)
Water Regular (1-2 inches/week)
Spacing 12" apart

🤝 Companion Plants for Potato

Good Companions

BeanCornBrassicasHorseradishMarigold

Avoid Planting Near

TomatoCucumberSquashSunflower
See the full companion planting guide for Potato →

Growing Potato in Oregon: Complete Guide

Potato (Solanum tuberosum) is a crop that grows best when sown directly in the garden. In Oregon, the right time to direct sow is around Sunday, February 15, 2026, once soil temperatures are consistently warm enough for germination.

Because Oregon stretches across 9 USDA hardiness zones (5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b), planting windows can shift by as much as six to eight weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.

With 90 days to maturity, Potato fits comfortably within Oregon's growing season in most zones. In the warmest parts of the state, a second planting later in the season may be possible.

Potato requires full sun (6+ hours) and regular (1-2 inches/week) moisture. Most of Oregon receives adequate sunlight during the growing season, though gardeners in humid eastern regions should watch for fungal issues and ensure good air circulation.

For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Oregon.

Growing Potato in Oregon: Local Tips

Climate-specific advice for Oregon gardeners.

Idaho-style conditions exist in eastern Oregon/WA

Eastern Oregon and eastern Washington's warm, dry summers are ideal for potatoes; western Oregon and Washington growers fight late blight and should plant resistant varieties.

Frequently Asked Questions

When should I plant Potato in Oregon?

In Oregon, direct sow Potato outdoors around Sunday, February 15, 2026. Oregon spans zones 5b–9b, so gardeners in warmer zones can plant earlier.

What is the last frost date in Oregon?

Oregon spans 9 USDA zones (5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b), so last frost dates vary by region. Seneca (5b) sees frost until around Saturday, April 25, 2026, while Pacific City, Newport, South Beach (9b) is frost-free much earlier.

How long does Potato take to grow in Oregon?

Potato takes about 90 days from transplant (or direct sow) to harvest. In Oregon's longer-season zones, a second planting in late summer may be possible.

What USDA zones does Oregon cover for Potato?

Oregon includes zones 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b. Potato grows well across all of these zones with adjusted timing — use the zone table above to find the right dates for your part of the state.

Find Precise Dates for Your City

Select a city for exact planting dates based on local frost records.

Other Plants for Oregon

When to Plant Potato in Other States