When to plant swiss chard in St. Louis
Common questions
When can I sow swiss chard outdoors in St. Louis?
Direct-sow around mid March (Mar 17–Apr 7) in St. Louis, based on its local frost dates. Confidence 81%.
When will swiss chard be ready to harvest in St. Louis?
Expect to harvest from around early May (May 6–May 16) in St. Louis, based on its local frost dates. Confidence 76%.
When should I start swiss chard seeds indoors in St. Louis?
Start seeds indoors around early March (Mar 2–Mar 23) in St. Louis, based on its local frost dates. Confidence 80%.
When can I transplant swiss chard outdoors in St. Louis?
Transplant outdoors around mid March (Mar 17–Apr 7) in St. Louis, based on its local frost dates. Confidence 81%.
Can I plant swiss chard in autumn in St. Louis?
Yes — St. Louis supports a second, autumn sowing of swiss chard around early August (Aug 6–Aug 20), timed to mature before the first fall frost.
How long is the growing season in St. Louis?
St. Louis has roughly 218 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 St. Louis's frost dates.