When to Plant Swiss Chard in Zone 6
In USDA zone 6a, start seeds indoors around March 7, transplant or plant outdoors April 11 to June 10, and expect your first harvest around June 10. Zone 6 also has a fall planting window opening around July 25. (6a shown here — see 6a and 6b dates separately below.)
Swiss Chard planting calendar for USDA Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
spring planting
Start seeds indoors
Mar 7
Transplant outdoors
Apr 11
Projected first harvest
Jun 10
fall planting
Direct sow
Jul 25
Projected first harvest
Sep 23
spring planting
fall planting
Most swiss chard mature in about 60 days, needing roughly 168 frost-free days in zone 6a.
Swiss Chard planting calendar for USDA Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
spring planting
Start seeds indoors
Mar 2
Transplant outdoors
Apr 6
Projected first harvest
Jun 5
fall planting
Direct sow
Jul 30
Projected first harvest
Sep 28
spring planting
fall planting
Most swiss chard mature in about 60 days, needing roughly 178 frost-free days in zone 6b.
Not sure whether you're in 6a or 6b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
2 varieties of swiss chard in the HomeSown library. Tap any for its full grow guide.
Common problems with swiss chard
What to watch for, with identification and treatment for each
🌱 Grow swiss chard with a calendar built for your exact yard
HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.
Start your free garden →