Heat Treated Onion Sets

Make growing your own onions a breeze with Mr 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.

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Steve L.

Quality of plants and seeds

I found seeds that were not apparently easy to find elsewhere at a very reasonable price. The delivery time and service was first class.

Sarah R.

Love the choice of seeds

There are many varieties of lettuce (I’m having a go at growing my own) so I was spoilt for choice - many I’d not seen on other sites.

Teresa T.

30 plug plants in really good condition

Just received my first ever order from here. 30 plug plants in really good condition, healthy and in bud. Very happy and will order from here again.