Rainline Garden
Freshly picked spinach leaves in a metal colander
Photo: Pexels

When to plant spinach in Klamath Falls, OR

Plant spinach from seed, directly in the garden in Klamath Falls, Apr 28 – Jun 2. For a fall harvest, plant again Jul 24 – Aug 14.

Moderate 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
Moderate
Sun
Full sun to part shade
Spacing
3 inches apart
Planting depth
½ inch deep
Frost
Handles light frost
First harvest
About 45 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 2, ½ inch deep, 3 inches apart.
  3. Keep the soil evenly moist until sprouts appear, which can take one to three weeks in cool soil.
  4. Plant again Jul 24 – Aug 14 for a fall harvest.
  5. Harvest: Cut outer leaves once plants have five or six, or cut the whole plant before it sends up a flower stalk.

Varieties that do well here

  • Bloomsdale Long Standing
  • Space
  • Giant Winter (for fall sowing)

Watch out for

Bolts (goes to seed) as days lengthen in late spring. Sow early, and sow again in late summer for fall and winter.

Bolts when days get long and warm, so spring sowings should go in early.

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 spinach in Klamath Falls?

The spring planting window runs through June 2. If you miss it, plant again for fall from July 24 to August 14.

How long until I can harvest spinach?

About 45 days after planting. Cut outer leaves once plants have five or six, or cut the whole plant before it sends up a flower stalk.

Also plant in Klamath Falls around the same time

Planting dates for spinach in nearby areas

Full planting calendar for Klamath Falls · Spinach in every city