When to plant kale in Tucson
Common questions
When can I sow kale outdoors in Tucson?
Direct-sow around late December (Dec 26–Jan 16) in Tucson, based on its local frost dates. Confidence 81%.
When will kale be ready to harvest in Tucson?
Expect to harvest from around mid February (Feb 19–Mar 11) in Tucson, based on its local frost dates. Confidence 75%.
When should I start kale seeds indoors in Tucson?
Start seeds indoors around mid January (Jan 16–Feb 6) in Tucson, based on its local frost dates. Confidence 79%.
When can I transplant kale outdoors in Tucson?
Transplant outdoors around late December (Dec 26–Jan 16) in Tucson, based on its local frost dates. Confidence 81%.
Can I plant kale in autumn in Tucson?
Yes — Tucson supports a second, autumn sowing of kale around late August (Aug 23–Sep 6), timed to mature before the first fall frost.
How long is the growing season in Tucson?
Tucson has roughly 278 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 Tucson's frost dates.