Mitchell 2 E, OR Frost Dates & Growing Season

The two dates every Mitchell 2 E garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
May 22
~50% chance of frost after
First fall frost
Oct 4
~50% chance of frost before
Growing season
135 days
frost-free stretch
USDA zone
≈ 7a
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost May 1 May 22 Jun 11
First fall frost Oct 20 Oct 4 Sep 16
Hard freeze (28°F), median last Apr 30 · first Oct 22

Computed from NOAA 1991–2020 climate normals at the MITCHELL 2 E station. "Safe" means frost past that date happens only about one year in ten. Your exact garden can still run days either way with elevation and terrain — check your own ZIP with the frost date lookup.

Planting windows for Mitchell 2 E

Computed from Mitchell 2 E's own frost dates. Click any crop for the full zone-7 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Mar 27 – Apr 10 May 29 – Jun 5
🫑 Peppers Mar 13 – Mar 27 Jun 5 – Jun 12
🥬 Lettuce Apr 10 – Apr 24 Apr 24 – May 8 Apr 24 – May 22
🫛 Peas Apr 10 – Apr 24
🥕 Carrots May 1 – May 22
🥦 Broccoli Apr 3 – Apr 17 May 1 – May 15
🥬 Kale Apr 10 – Apr 24 Apr 24 – May 8 Apr 24 – May 8
🥒 Cucumbers Apr 24 – May 1 May 29 – Jun 5 May 29 – Jun 5
🥒 Zucchini Apr 24 – May 1 May 29 – Jun 5 May 29 – Jun 5
🫘 Green Beans (Bush) May 29 – Jun 5
🌽 Sweet Corn May 29 – Jun 5
🌿 Basil Apr 10 – Apr 24 May 29 – Jun 5 Jun 5 – Jun 12
🧄 Garlic Fall: Aug 23 – Sep 20

Want this for all 50 crops, or as a printable seed-shelf schedule? Use the planting calendar and the seed starting scheduler — both can use Mitchell 2 E's dates automatically after a lookup.

Reading the season in Mitchell 2 E

At about 135 frost-free days, Mitchell 2 E rewards efficiency: start warm-season crops indoors, favor short-season varieties, and lean on cold-tolerant crops — peas, kale, roots — that shrug off the shoulder-season frosts on either end.

Frequently asked questions

When is the last frost in Mitchell 2 E, OR?

The average last spring frost in Mitchell 2 E is around May 22, based on 1991–2020 climate normals. That's a median — about half of years see a later frost, so tender crops are safest going out a week or two after this date.

When is the first frost in Mitchell 2 E, OR?

The average first fall frost in Mitchell 2 E arrives around Oct 4. Crops still in the garden need to mature before then, and frost-tender plants need harvesting or protection as the date approaches.

How long is the growing season in Mitchell 2 E?

About 135 frost-free days on average, from May 22 to Oct 4. That favors short-season varieties and transplants for warm-season crops, with cool-season vegetables doing the heavy lifting in spring and fall.

What USDA zone is Mitchell 2 E in?

USDA zone 7a on the 2023 Plant Hardiness Zone Map. Note that zones describe winter cold, not frost timing — these frost dates are the numbers to plan plantings around.