How to Grow Shallots in a Greenhouse: UK Guide 2026
Matt W · 31st Mar 2025
Shallots grow faster and more reliably in a greenhouse than outdoors in the UK. Plant sets from January in modules at 15-20cm spacing. Maintain 10-21 degrees C and water when the top 25mm of compost dries out. Most varieties reach harvest in 90-120 days.