Washington Planting Zones & Schedule

Washington’s USDA growing zones range from Zone 4 to Zone 9, depending on where you are in the state. Most of the state ranges from Zone 9 along the western coast to Zone 6a in the east. These areas are suitable for cool-weather vegetables as well as warm-season crops.

Small areas of high elevation in northern Washington fall in Zones 4 or 5 where you can grow cold-hardy crops. Warm-season crops may thrive if started early indoors.

 

Washington Last & First Frost Dates

  • *Keep in mind that frost can occur before or after these dates. Watch your local weather to determine the best time to plant.

  • The growing season in Washington ranges from about 125 days in high elevation areas up to 250 days along the coast. Refer to the planting schedules below to determine the best timing for your zone.

Zone 4 Planting Schedule

Zone 5 Planting Schedule

Zone 6 Planting Schedule

Zone 7 Planting Schedule

Zone 8 Planting Schedule

Zone 9 Planting Schedule