When to Plant Swiss Chard in Zone 3
In USDA zone 3, start seeds indoors around April 11, transplant or plant outdoors May 16 to July 15, and expect your first harvest around July 15. Zone 3 also has a fall planting window opening around June 25.
Swiss Chard planting calendar for USDA Zone 3
spring planting
Start seeds indoors
Apr 11
Transplant outdoors
May 16
Projected first harvest
Jul 15
fall planting
Direct sow
Jun 25
Projected first harvest
Aug 24
spring planting
fall planting
Most swiss chard mature in about 60 days. Dates use USDA zone 3a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 3 means for swiss chard
Average last spring frost
May 30
Average first fall frost
September 10
Those two dates are what set the schedule above. Zone 3 gives you roughly 103 frost-free days, and swiss chard need about 60 days to mature.
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 →