Washington · zones 6b–9a
When to plant snap peas in Washington.
Sow between Feb 21 to Apr 4 in a typical year, keyed to Washington's median last frost around Apr 14. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Snap Peas dates for a typical Washington season.
Direct sow
Feb 21 to Apr 4
Keyed to the ~Apr 14 last frost. Sow 1" deep, 2" apart.
Harvest
~62 days later
~0.4 lb per plant over ~3 weeks.
Washington spans more than one climate: Zone 8 is the most common zone, but the state runs 6b to 9a. That's why the planner works from your ZIP code's frost dates, not your zone — mountain and coastal gardens in the same state can be three weeks apart.