When to Plant Swiss Chard in Washington
State
Washington
Cities Covered
488
USDA Zones
5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Plant Type
Direct Sow
📅 Planting Calendar for Washington
Based on Seattle (Zone 9a). Dates may vary by city.
Note: Washington spans multiple zones (5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b). Select your city below for more precise dates.
🌿 Plant Details
Find Your City in Washington
Other Plants for Washington
Browse Other States
Growing Swiss Chard in Washington
Swiss Chard (Beta vulgaris subsp. vulgaris) is a popular garden vegetable in Washington. The state spans USDA Hardiness Zones 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, so planting dates can vary significantly depending on your location.
In most areas of Washington, you can direct sow Swiss Chard outdoors around Friday, January 23, 2026.
For the most accurate planting dates, enter your ZIP code on our homepage or select your city from the list above.