Planting Guide – Sowing Onions

If you want to grow onions at home, you can choose to sow onions from seed or sets (immature onions). This planting guide runs you through the best methods to get you started. Sowing onions means you’ll have a crop of home-grown onions to last you through the winter.

Onions store very well and, looked after properly, will keep you in supply for months.

This planting guide covers sowing onions. It is simple to follow and will give you great results.

Download your onion sowing planting guide now and start to reap the rewards of growing your own onions.

Sowing Onions Using Thompson & Morgan Seeds

If you want to grow onions from seed, see the Thompson & Morgan range of onion seeds. Thompson & Morgan seeds are a great place to start for any of your grow-your-own gardening needs.

Thompson & Morgan Onion Seed Varieties

Future Garden sell a range of onion seeds, including the below examples.

Sowing Thompson & Morgan Ailsa Craig Onion Seeds

Thompson & Morgan Ailsa Craig Onion is an enduringly popular and well known variety of onion. It’s a gardener’s favourite for the show bench, and is also a great choice for cooking with. The quality, large, globe shaped bulbs have a rich, golden, straw-coloured skin, with a mild flavour. Plants grow to a height of 45 cm (18”) and spread of 10 cm (4”).

Sowing Thompson & Morgan Performer Onion Seeds

Thompson & Morgan Performer Onion seeds are used as a spring onion. This bunching onion produces upright, dark green leaves and mild-flavoured stems. Use this yearly onion as an addition to salads or chopped up as a garnish with a mild flavour.

Sowing Thompson & Morgan White Lisbon Spring Onion Seeds

Thompson & Morgan White Lisbon Spring Onion Seeds are a very quick growing salad onion. Sow White Lisbon Spring Onions in succession for a continuous crop all spring, summer and autumn. This gardener favourite is also the best variety for overwintering. Make late sowings in September. Expect heights of 30 cm (12”) and a spread of 5 cm (2”).