When to plant lettuce in Ellensburg, WA

Plant lettuce in the garden in Ellensburg Apr 1 – May 27, either as seeds or as young plants started indoors Feb 18 – Mar 4. For a fall harvest, plant again Aug 12–26.

Easy Plant seeds or 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 1.

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 in spring; afternoon shade in summer
Spacing: 8 to 10 inches apart for heads
Planting depth: ¼ inch deep (it needs light to sprout)
Frost: Handles light frost
First harvest: About 50 days after planting

Step by step

Start seeds indoors Feb 18 – Mar 4 in trays or small pots under a grow light or in your sunniest window. Or skip this step and buy young plants (starts) at a garden center.
Harden off the young plants: about a week before planting, set them outside for a few hours a day, a little longer each day.
Plant them in the garden Apr 1 – May 27, 8 to 10 inches apart for heads. If you plant seeds instead, sow them ¼ inch deep (it needs light to sprout).
Water deeply once or twice a week rather than a little every day, and mulch once the soil is warm.
Plant again Aug 12–26 for a fall harvest.
Harvest: Pick outer leaves as needed, or cut whole heads when full. Harvest in the morning for the crispest leaves.

Varieties that do well here

Buttercrunch
Black Seeded Simpson
Winter Density

Watch out for

Slugs are the Northwest lettuce pest. Iron phosphate slug bait is safe around pets and edible crops.

Tolerates light frost. Sow every two to three weeks; choose heat-tolerant types for later sowings.

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 lettuce in Ellensburg?

The spring planting window runs through May 27. If you miss it, plant again for fall from August 12 to August 26.

When should I start lettuce from seed indoors in Ellensburg?

February 18 to March 4, which is 6 to 4 weeks before the April 1 planting date. Or buy young plants at a garden center instead.

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Gardening in Bend and Central Oregon's Short SeasonHow to grow vegetables where frost can come almost any month: what to plant, when, and how to protect it.
How to Control Slugs in a Northwest GardenPractical, pet-safe ways to protect seedlings, lettuce and strawberries from the Pacific Northwest's most famous garden pest.

Also plant in Ellensburg around the same time

Planting dates for lettuce in nearby areas

Spokane, WA Apr 1 – May 27
Omak and Okanogan, WA Apr 1 – May 27

Full planting calendar for Ellensburg · Lettuce in every city