When to plant swiss chard in Tucson
Common questions
When can I sow swiss chard outdoors in Tucson?
Direct-sow around late December (Dec 26–Jan 16) in Tucson, based on its local frost dates. Confidence 81%.
When will swiss chard be ready to harvest in Tucson?
Expect to harvest from around mid February (Feb 14–Feb 24) in Tucson, based on its local frost dates. Confidence 75%.
When should I start swiss chard seeds indoors in Tucson?
Start seeds indoors around late January (Jan 30–Feb 20) in Tucson, based on its local frost dates. Confidence 79%.
When can I transplant swiss chard 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 swiss chard in autumn in Tucson?
Yes — Tucson supports a second, autumn sowing of swiss chard around late August (Aug 24–Sep 7), 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 swiss chard to maturity outdoors.
Sow swiss chard 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.