When to plant swiss chard in Ottawa
Common questions
When can I sow swiss chard outdoors in Ottawa?
Direct-sow around late April (Apr 26–May 17) in Ottawa, based on its local frost dates. Confidence 86%.
When will swiss chard be ready to harvest in Ottawa?
Expect to harvest from around mid June (Jun 15–Jun 25) in Ottawa, based on its local frost dates. Confidence 80%.
When should I start swiss chard seeds indoors in Ottawa?
Start seeds indoors around early April (Apr 1–Apr 22) in Ottawa, based on its local frost dates. Confidence 85%.
When can I transplant swiss chard outdoors in Ottawa?
Transplant outdoors around late April (Apr 26–May 17) in Ottawa, based on its local frost dates. Confidence 86%.
Can I plant swiss chard in autumn in Ottawa?
Yes — Ottawa supports a second, autumn sowing of swiss chard around early July (Jul 10–Jul 24), timed to mature before the first fall frost.
How long is the growing season in Ottawa?
Ottawa has roughly 161 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 Ottawa's frost dates.