When to plant swiss chard in Charleston
Common questions
When can I sow swiss chard outdoors in Charleston?
Direct-sow around late January (Jan 25–Feb 15) in Charleston, based on its local frost dates. Confidence 89%.
When will swiss chard be ready to harvest in Charleston?
Expect to harvest from around mid March (Mar 16–Mar 26) in Charleston, based on its local frost dates. Confidence 80%.
When should I start swiss chard seeds indoors in Charleston?
Start seeds indoors around mid January (Jan 11–Feb 1) in Charleston, based on its local frost dates. Confidence 85%.
When can I transplant swiss chard outdoors in Charleston?
Transplant outdoors around late January (Jan 25–Feb 15) in Charleston, based on its local frost dates. Confidence 89%.
Can I plant swiss chard in autumn in Charleston?
Yes — Charleston supports a second, autumn sowing of swiss chard around early September (Sep 7–Sep 21), timed to mature before the first fall frost.
How long is the growing season in Charleston?
Charleston has roughly 310 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 Charleston's frost dates.