When to plant cauliflower in Phoenix
Common questions
When will cauliflower be ready to harvest in Phoenix?
Expect to harvest from around late February (Feb 25–Mar 22) in Phoenix, based on its local frost dates. Confidence 74%.
When should I start cauliflower 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 cauliflower 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 cauliflower in autumn in Phoenix?
Yes — Phoenix supports a second, autumn sowing of cauliflower around mid August (Aug 12–Aug 26), 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 cauliflower to maturity outdoors.
Sow cauliflower 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.