When to plant kale in San Bernardino
Common questions
When can I sow kale outdoors in San Bernardino?
Direct-sow around late December (Dec 26–Jan 16) in San Bernardino, based on its local frost dates. Confidence 76%.
When will kale be ready to harvest in San Bernardino?
Expect to harvest from around mid February (Feb 19–Mar 11) in San Bernardino, based on its local frost dates. Confidence 70%.
When should I start kale seeds indoors in San Bernardino?
Start seeds indoors around mid January (Jan 12–Feb 2) in San Bernardino, based on its local frost dates. Confidence 74%.
When can I transplant kale outdoors in San Bernardino?
Transplant outdoors around late December (Dec 26–Jan 16) in San Bernardino, based on its local frost dates. Confidence 76%.
Can I plant kale in autumn in San Bernardino?
Yes — San Bernardino supports a second, autumn sowing of kale around early September (Sep 4–Sep 18), timed to mature before the first fall frost.
How long is the growing season in San Bernardino?
San Bernardino has roughly 284 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 San Bernardino's frost dates.