When to plant cauliflower in St. Louis
Common questions
When will cauliflower be ready to harvest in St. Louis?
Expect to harvest from around mid May (May 16–Jun 10) in St. Louis, based on its local frost dates. Confidence 76%.
When should I start cauliflower 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 cauliflower outdoors in St. Louis?
Transplant outdoors around mid March (Mar 17–Apr 7) in St. Louis, based on its local frost dates. Confidence 81%.
Can I plant cauliflower in autumn in St. Louis?
Yes — St. Louis supports a second, autumn sowing of cauliflower around mid July (Jul 12–Jul 26), 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 cauliflower to maturity outdoors.
Sow cauliflower 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.