When to plant parsley in Astoria, OR

Plant parsley in the garden in Astoria Apr 1 – May 20, either as seeds or as young plants started indoors Feb 4–18.

Easy Plant seeds or young plants

Why these dates

Astoria's typical last spring frost is March 26. On the coast, the soil is usually ready for parsley around April 1.

Coast. Mild winters but cool, foggy summers. Frost is rarely the problem; warmth is. Pick early, cool-tolerant varieties of tomatoes and squash.

Start seeds indoors Feb 4–18 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 20, 8 inches apart. If you plant seeds instead, sow them ¼ inch deep.
Water deeply once or twice a week rather than a little every day, and mulch once the soil is warm.
Harvest: Cut outer stems at the base and let the center keep growing.

Slow, patchy sprouting. Soak seeds overnight before sowing, or buy young plants.

Slow to sprout (up to three weeks), so many gardeners buy starts. Often keeps going through a mild Northwest winter.

When is the last frost in Astoria, OR?

Typically March 26. In 9 years out of 10, frost is over by April 18. These are 1991–2020 NOAA climate normals for Astoria Regional Airport.

Is it too late to plant parsley in Astoria?

The spring planting window runs through May 20. Later plantings tend to struggle in summer heat.

When should I start parsley from seed indoors in Astoria?

February 4 to February 18, which is 8 to 6 weeks before the April 1 planting date. Or buy young plants at a garden center instead.