When to plant kale in New Haven
Common questions
When can I sow kale outdoors in New Haven?
Direct-sow around early April (Apr 5–Apr 26) in New Haven, based on its local frost dates. Confidence 81%.
When will kale be ready to harvest in New Haven?
Expect to harvest from around late May (May 30–Jun 19) in New Haven, based on its local frost dates. Confidence 75%.
When should I start kale seeds indoors in New Haven?
Start seeds indoors around early March (Mar 8–Mar 29) in New Haven, based on its local frost dates. Confidence 79%.
When can I transplant kale outdoors in New Haven?
Transplant outdoors around early April (Apr 5–Apr 26) in New Haven, based on its local frost dates. Confidence 81%.
Can I plant kale in autumn in New Haven?
Yes — New Haven supports a second, autumn sowing of kale around mid July (Jul 15–Jul 29), timed to mature before the first fall frost.
How long is the growing season in New Haven?
New Haven has roughly 184 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 New Haven's frost dates.