Rainline Garden

When to plant eggplant in Yakima, WA

Start eggplant from seed indoors Feb 27 – Mar 13, then plant the young plants in the garden in Yakima May 8–29.

Tricky here Plant young plants (starts)

Why these dates

Yakima's typical last spring frost is May 8. Frost kills eggplant, so planting starts once frost risk drops, around May 8. Keep row cover or a frost blanket handy for the first couple of weeks, since a late frost is still possible.

Columbia Basin and low eastern valleys. Hot, dry summers and quick spring warm-up. Warm crops go in earlier than west of the Cascades, and irrigation matters more than rain.

Difficulty
Tricky here
Sun
Full sun; the hottest spot you have
Spacing
18 to 24 inches apart
Planting depth
Plant starts at the depth they grew in the pot
Frost
Killed by frost
First harvest
About 80 days after planting

Step by step

  1. Start seeds indoors Feb 27 – Mar 13 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.
  2. Harden off the young plants: about a week before planting, set them outside for a few hours a day, a little longer each day.
  3. Plant them in the garden May 8–29, 18 to 24 inches apart. Plant starts at the depth they grew in the pot.
  4. Water deeply once or twice a week rather than a little every day, and mulch once the soil is warm.
  5. Harvest: Pick when the skin is glossy and springs back when pressed. Dull skin means it's overripe and seedy.

Varieties that do well here

  • Hansel (early, small fruit)
  • Fairy Tale
  • Orient Express

Watch out for

Flea beetles riddle young leaves, and cool nights stall growth. Keep row cover on until plants are growing strongly.

Needs even more heat than peppers. Small-fruited, early varieties do best west of the Cascades, helped by black plastic mulch or a warm wall. Hot eastern valleys grow them easily.

Common questions

When is the last frost in Yakima, WA?

Typically May 8. In 9 years out of 10, frost is over by May 27. These are 1991–2020 NOAA climate normals for Yakima Air Terminal.

Is it too late to plant eggplant in Yakima?

The spring planting window runs through May 29. Later plantings may not have time to produce before the first fall frost, which usually arrives around October 4.

When should I start eggplant from seed indoors in Yakima?

February 27 to March 13, which is 10 to 8 weeks before the May 8 planting date. Or buy young plants at a garden center instead.

Also plant in Yakima around the same time

Planting dates for eggplant in nearby areas

Full planting calendar for Yakima · Eggplant in every city