When to plant swiss chard in Baltimore
Common questions
When can I sow swiss chard outdoors in Baltimore?
Direct-sow around mid March (Mar 18–Apr 8) in Baltimore, based on its local frost dates. Confidence 81%.
When will swiss chard be ready to harvest in Baltimore?
Expect to harvest from around early May (May 7–May 17) in Baltimore, based on its local frost dates. Confidence 76%.
When should I start swiss chard seeds indoors in Baltimore?
Start seeds indoors around late February (Feb 21–Mar 14) in Baltimore, based on its local frost dates. Confidence 80%.
When can I transplant swiss chard outdoors in Baltimore?
Transplant outdoors around mid March (Mar 18–Apr 8) in Baltimore, based on its local frost dates. Confidence 81%.
Can I plant swiss chard in autumn in Baltimore?
Yes — Baltimore supports a second, autumn sowing of swiss chard around late August (Aug 21–Sep 4), timed to mature before the first fall frost.
How long is the growing season in Baltimore?
Baltimore has roughly 249 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 Baltimore's frost dates.