Rainline Garden

When to plant thyme in Ellensburg, WA

Plant young thyme plants in Ellensburg Apr 15 – Jun 10.

Easy Plant young plants

Why these dates

Ellensburg's typical last spring frost is April 28. As a cool-season crop that handles light frost, this crop doesn't need to wait for that date. In the Inland Northwest, though, the soil usually isn't ready to work until about April 15.

Inland Northwest. Higher, colder interior valleys. Cold springs and an earlier fall mean a shorter season; quick-maturing varieties pay off.

Difficulty
Easy
Sun
Full sun
Spacing
12 inches apart
Planting depth
Plant at the depth it grew in the nursery pot
Frost
Handles light frost
First harvest
Pick lightly the first year, freely after that

Step by step

  1. Pick a sunny spot with soil that drains well, and mix in an inch or two of compost.
  2. Plant young thyme plants Apr 15 – Jun 10, 12 inches apart. Plant at the depth it grew in the nursery pot.
  3. Water only until established; thyme prefers dry soil. Replace plants every few years when they get woody.
  4. Harvest: Snip sprigs before the plant flowers for the best flavor. Trim lightly after flowering to keep it compact.

Varieties that do well here

  • English thyme
  • French thyme
  • Lemon thyme

Watch out for

Root rot in heavy, wet soil. Give it gravelly soil or a raised spot.

Drought-tolerant once established and hates wet feet. Raised beds and rocky edges suit it.

Common questions

When is the last frost in Ellensburg, WA?

Typically April 28. In 9 years out of 10, frost is over by May 12. These are 1991–2020 NOAA climate normals for Ellensburg Bowers Field.

Is it too late to plant thyme in Ellensburg?

The spring planting window runs through June 10. Later plantings tend to struggle in summer heat.

How long until I can pick thyme?

Pick lightly the first year, freely after that. Snip sprigs before the plant flowers for the best flavor. Trim lightly after flowering to keep it compact.

Also plant in Ellensburg around the same time

Planting dates for thyme in nearby areas

Full planting calendar for Ellensburg · Thyme in every city