When to plant radishes in McMinnville and Newberg, OR

Plant radishes from seed, directly in the garden in McMinnville and Newberg, Mar 4 – Apr 29. For a fall harvest, plant again Sep 3–17.

Easy Plant seeds in the ground

Why these dates

McMinnville and Newberg's typical last spring frost is April 15. As a cool-season crop that handles light frost, this crop can go in about 6 weeks before that.

West-side valleys. The Willamette Valley, Puget Sound and southern Oregon valleys. Long frost-free seasons, but soil stays cold and wet into May, so warm crops wait for warm soil, not just the last frost.

Difficulty: Easy
Sun: Full sun; tolerates light shade
Spacing: 1 inch apart (thin to 2 inches)
Planting depth: ½ inch deep
Frost: Handles light frost
First harvest: About 28 days after planting

Step by step

Prepare the bed: loosen the soil and mix in an inch or two of compost.
Plant seeds Mar 4 – Apr 29, ½ inch deep, 1 inch apart (thin to 2 inches).
Keep the soil evenly moist until sprouts appear, which can take one to three weeks in cool soil.
Plant again Sep 3–17 for a fall harvest.
Harvest: Most are ready in about four weeks. Pull them while they're small; they turn woody if left too long.

Varieties that do well here

Cherry Belle
French Breakfast
Easter Egg

Watch out for

Cabbage root maggots tunnel into roots in cool, wet springs. Row cover laid on at sowing keeps the flies off.

Sow a short row every two weeks for a steady supply.

Common questions

When is the last frost in McMinnville and Newberg, OR?

Typically April 15. In 9 years out of 10, frost is over by May 6. These are 1991–2020 NOAA climate normals for McMinnville Municipal Airport.

Is it too late to plant radishes in McMinnville and Newberg?

The spring planting window runs through April 29. If you miss it, plant again for fall from September 3 to September 17.

How long until I can harvest radishes?

About 28 days after planting. Most are ready in about four weeks. Pull them while they're small; they turn woody if left too long.

Also plant in McMinnville and Newberg around the same time

Planting dates for radishes in nearby areas

Salem, OR Mar 1 – Apr 26
Eugene, OR Mar 1 – Apr 26
Corvallis and Albany, OR Mar 1 – Apr 26
Cottage Grove, OR Mar 13 – May 8
Portland, OR Mar 1 – Apr 26
Gresham, OR Mar 1 – Apr 26

Full planting calendar for McMinnville and Newberg · Radishes in every city