When to plant swiss chard in Tulsa
Common questions
When can I sow swiss chard outdoors in Tulsa?
Direct-sow around mid March (Mar 17–Apr 7) in Tulsa, based on its local frost dates. Confidence 88%.
When will swiss chard be ready to harvest in Tulsa?
Expect to harvest from around early May (May 6–May 16) in Tulsa, based on its local frost dates. Confidence 79%.
When should I start swiss chard seeds indoors in Tulsa?
Start seeds indoors around early March (Mar 3–Mar 24) in Tulsa, based on its local frost dates. Confidence 84%.
When can I transplant swiss chard outdoors in Tulsa?
Transplant outdoors around mid March (Mar 17–Apr 7) in Tulsa, based on its local frost dates. Confidence 88%.
Can I plant swiss chard in autumn in Tulsa?
Yes — Tulsa supports a second, autumn sowing of swiss chard around early August (Aug 2–Aug 16), timed to mature before the first fall frost.
How long is the growing season in Tulsa?
Tulsa has roughly 214 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 Tulsa's frost dates.