When to plant kale in Phoenix
Common questions
When can I sow kale outdoors in Phoenix?
Direct-sow around late December (Dec 27–Jan 17) in Phoenix, based on its local frost dates. Confidence 80%.
When will kale be ready to harvest in Phoenix?
Expect to harvest from around mid February (Feb 20–Mar 12) in Phoenix, based on its local frost dates. Confidence 74%.
When should I start kale seeds indoors in Phoenix?
Start seeds indoors around mid December (Dec 16–Jan 6) in Phoenix, based on its local frost dates. Confidence 78%.
When can I transplant kale outdoors in Phoenix?
Transplant outdoors around late December (Dec 27–Jan 17) in Phoenix, based on its local frost dates. Confidence 80%.
Can I plant kale in autumn in Phoenix?
Yes — Phoenix supports a second, autumn sowing of kale around early September (Sep 2–Sep 16), timed to mature before the first fall frost.
How long is the growing season in Phoenix?
Phoenix has roughly 314 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 Phoenix's frost dates.