When to plant swiss chard in Charleston
Common questions
When can I sow swiss chard outdoors in Charleston?
Direct-sow around early April (Apr 2–Apr 23) in Charleston, based on its local frost dates. Confidence 88%.
When will swiss chard be ready to harvest in Charleston?
Expect to harvest from around late May (May 22–Jun 1) in Charleston, based on its local frost dates. Confidence 79%.
When should I start swiss chard seeds indoors in Charleston?
Start seeds indoors around mid March (Mar 19–Apr 9) in Charleston, based on its local frost dates. Confidence 84%.
When can I transplant swiss chard outdoors in Charleston?
Transplant outdoors around early April (Apr 2–Apr 23) in Charleston, based on its local frost dates. Confidence 88%.
Can I plant swiss chard in autumn in Charleston?
Yes — Charleston supports a second, autumn sowing of swiss chard around mid July (Jul 20–Aug 3), timed to mature before the first fall frost.
How long is the growing season in Charleston?
Charleston has roughly 186 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.