Heat Treated Onion Sets

Make growing your own onions a breeze with Fothergill's heat-treated onion sets. The best choice for beginners, or an easy shortcut for experienced gardeners, heat-treated onion sets grow and establish much more rapidly. This means larger bulbs and higher yields, with virtually no risk of premature ‘bolting’.

Expertly heat-treated for several months, these onion sets will arrive at your door ready for immediate planting. Choose from many popular varieties, including the AGM-winning Red Baron, known for its beautiful crimson-skinned bulbs. Beginners will appreciate our reliable Stuttgarter Riesen sets, which boast great disease resistance. Discover our full range of heat-treated onion sets below.