When to plant swiss chard in Modesto
Common questions
When can I sow swiss chard outdoors in Modesto?
Direct-sow around late December (Dec 26–Jan 16) in Modesto, based on its local frost dates. Confidence 84%.
When will swiss chard be ready to harvest in Modesto?
Expect to harvest from around mid February (Feb 14–Feb 24) in Modesto, based on its local frost dates. Confidence 78%.
When should I start swiss chard seeds indoors in Modesto?
Start seeds indoors around late December (Dec 30–Jan 20) in Modesto, based on its local frost dates. Confidence 83%.
When can I transplant swiss chard outdoors in Modesto?
Transplant outdoors around late December (Dec 26–Jan 16) in Modesto, based on its local frost dates. Confidence 84%.
Can I plant swiss chard in autumn in Modesto?
Yes — Modesto supports a second, autumn sowing of swiss chard around early September (Sep 1–Sep 15), timed to mature before the first fall frost.
How long is the growing season in Modesto?
Modesto has roughly 310 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 Modesto's frost dates.