When to plant kale in St. Louis
Common questions
When can I sow kale outdoors in St. Louis?
Direct-sow around early March (Mar 9–Mar 30) in St. Louis, based on its local frost dates. Confidence 84%.
When will kale be ready to harvest in St. Louis?
Expect to harvest from around early May (May 3–May 23) in St. Louis, based on its local frost dates. Confidence 76%.
When should I start kale seeds indoors in St. Louis?
Start seeds indoors around mid February (Feb 16–Mar 9) in St. Louis, based on its local frost dates. Confidence 80%.
When can I transplant kale outdoors in St. Louis?
Transplant outdoors around early March (Mar 9–Mar 30) in St. Louis, based on its local frost dates. Confidence 84%.
Can I plant kale in autumn in St. Louis?
Yes — St. Louis supports a second, autumn sowing of kale around early August (Aug 1–Aug 15), timed to mature before the first fall frost.
How long is the growing season in St. Louis?
St. Louis has roughly 218 frost-free days, which is enough time to grow kale to maturity outdoors.
Sow kale 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 St. Louis's frost dates.