When to plant kale in Osaka
Common questions
When can I sow kale outdoors in Osaka?
Direct-sow around mid March (Mar 20–Apr 10) in Osaka, based on its local frost dates. Confidence 45%.
When will kale be ready to harvest in Osaka?
Expect to harvest from around mid May (May 14–Jun 3) in Osaka, based on its local frost dates. Confidence 40%.
When should I start kale seeds indoors in Osaka?
Start seeds indoors around late February (Feb 27–Mar 20) in Osaka, based on its local frost dates. Confidence 43%.
When can I transplant kale outdoors in Osaka?
Transplant outdoors around mid March (Mar 20–Apr 10) in Osaka, based on its local frost dates. Confidence 45%.
Can I plant kale in autumn in Osaka?
Yes — Osaka supports a second, autumn sowing of kale around mid August (Aug 18–Sep 1), timed to mature before the first fall frost.
How long is the growing season in Osaka?
Osaka has roughly 228 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 Osaka's frost dates.