In Wales, spring onion sets such as Sturon, Snowball, and Red Karmen can be planted from March to mid-April, depending on your local microclimate. For overwintering onions like Troy F1 and Senshyu Yellow, aim for mid-September to early November.
Wales’ wetter climate and milder winters are generally favourable, but raised beds or free-draining soil help prevent rot in heavy rain.
Avoid planting after heavy rain or when frost is forecast. Mulching or fleece is useful protection during colder snaps in upland or inland areas.
Absolutely! Onion sets grow well throughout Wales. The key is choosing the right variety and planting time. For coastal or southern regions, overwintering sets like Troy F1 thrive. In cooler or wetter inland areas, focus on spring planting with Sturon or Snowball.
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