When to plant swiss chard in London
Common questions
When can I sow swiss chard outdoors in London?
Direct-sow around late March (Mar 23–Apr 13) in London, based on its local frost dates. Confidence 82%.
When will swiss chard be ready to harvest in London?
Expect to harvest from around mid May (May 12–May 22) in London, based on its local frost dates. Confidence 74%.
When should I start swiss chard seeds indoors in London?
Start seeds indoors around early March (Mar 9–Mar 30) in London, based on its local frost dates. Confidence 78%.
When can I transplant swiss chard outdoors in London?
Transplant outdoors around late March (Mar 23–Apr 13) in London, based on its local frost dates. Confidence 82%.
Can I plant swiss chard in autumn in London?
Yes — London supports a second, autumn sowing of swiss chard around early August (Aug 7–Aug 21), timed to mature before the first fall frost.
How long is the growing season in London?
London has roughly 234 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 London's frost dates.