Rainline Garden

When to plant radishes in Klamath Falls, OR

Plant radishes from seed, directly in the garden in Klamath Falls, Apr 28 – Jun 23. For a fall harvest, plant again Aug 7–21.

Easy Plant seeds in the ground

Why these dates

Klamath Falls's typical last spring frost is June 9. As a cool-season crop that handles light frost, this crop can go in about 6 weeks before that.

High desert and mountains. Central and high eastern Oregon. Frost is possible almost any month. Use row covers, wall-o-water or cloches for warm crops, and choose short-season varieties.

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

  1. Prepare the bed: loosen the soil and mix in an inch or two of compost.
  2. Plant seeds Apr 28 – Jun 23, ½ inch deep, 1 inch apart (thin to 2 inches).
  3. Keep the soil evenly moist until sprouts appear, which can take one to three weeks in cool soil.
  4. Plant again Aug 7–21 for a fall harvest.
  5. 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 Klamath Falls, OR?

Typically June 9. In 9 years out of 10, frost is over by June 26. These are 1991–2020 NOAA climate normals for Klamath Falls Airport.

Is it too late to plant radishes in Klamath Falls?

The spring planting window runs through June 23. If you miss it, plant again for fall from August 7 to August 21.

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 Klamath Falls around the same time

Planting dates for radishes in nearby areas

Full planting calendar for Klamath Falls · Radishes in every city