When to plant swiss chard in Madison
Common questions
When can I sow swiss chard outdoors in Madison?
Direct-sow around late April (Apr 21–May 12) in Madison, based on its local frost dates. Confidence 89%.
When will swiss chard be ready to harvest in Madison?
Expect to harvest from around early June (Jun 10–Jun 20) in Madison, based on its local frost dates. Confidence 80%.
When should I start swiss chard seeds indoors in Madison?
Start seeds indoors around early April (Apr 7–Apr 28) in Madison, based on its local frost dates. Confidence 85%.
When can I transplant swiss chard outdoors in Madison?
Transplant outdoors around late April (Apr 21–May 12) in Madison, based on its local frost dates. Confidence 89%.
Can I plant swiss chard in autumn in Madison?
Yes — Madison supports a second, autumn sowing of swiss chard around early July (Jul 3–Jul 17), timed to mature before the first fall frost.
How long is the growing season in Madison?
Madison has roughly 151 frost-free days, which is enough time to grow swiss chard to maturity outdoors.
Sow swiss chard as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and Madison's frost dates.