In England, spring-planted onion sets like Sturon and Red Karmen are best sown from early March through April. For overwintering types like Troy F1 and Senshyu Yellow, sow from mid-September to early November.
The relatively mild English climate offers excellent conditions for both spring and autumn sowings—just ensure well-draining soil to avoid rot during wet periods.
In most of England, onions do well in open, sunny plots. Use mulch or fleece if planting late in the season or in exposed areas.
Yes—onion sets grow very successfully throughout England. Whether you're in the South East or the Midlands, you'll find spring and overwintering varieties thrive. Just match your variety to the season—Troy F1 or Senshyu for autumn, Sturon or Snowball for spring.
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