Rainline Garden

When to plant leeks in Burns, OR

Start leeks from seed indoors Mar 5–19, then plant the young plants in the garden in Burns May 14 – Jun 25.

Easy Plant young plants (starts)

Why these dates

Burns's typical last spring frost is June 11. As a cool-season crop that handles light frost, this crop can go in about 4 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
Spacing
6 inches apart
Planting depth
Set seedlings in a hole about 6 inches deep so the stems grow long and white
Frost
Handles light frost
First harvest
About 120 days after planting

Step by step

  1. Start seeds indoors Mar 5–19 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 14 – Jun 25, 6 inches apart. Set seedlings in a hole about 6 inches deep so the stems grow long and white.
  4. Water deeply once or twice a week rather than a little every day, and mulch once the soil is warm.
  5. Harvest: Dig whenever stems are an inch or more across. West of the Cascades you can leave them in the ground and harvest all winter.

Varieties that do well here

  • King Richard (early)
  • Bandit (winter-hardy)
  • American Flag

Watch out for

Weeds crowd young leeks. Mulch and weed regularly while the plants are small.

Slow but nearly foolproof. West of the Cascades they stand in the garden all winter, ready to dig as you need them.

Common questions

When is the last frost in Burns, OR?

Typically June 11. In 9 years out of 10, frost is over by June 28. These are 1991–2020 NOAA climate normals for Burns Municipal Airport.

Is it too late to plant leeks in Burns?

The spring planting window runs through June 25. Later plantings tend to struggle in summer heat.

When should I start leeks from seed indoors in Burns?

March 5 to March 19, which is 10 to 8 weeks before the May 14 planting date. Or buy young plants at a garden center instead.

Also plant in Burns around the same time

Planting dates for leeks in nearby areas

Full planting calendar for Burns · Leeks in every city