We're offering you a Onion Mixed Red, White + Brown Sets for £4.99, saving you up to 29% off Thompson and Morgan's's price of £6.99 (correct as of 08.10.2025).

Autumn planting

Grow a colourful onion harvest in your own garden with this mixed set of red, white, and brown onion varieties. Specially selected for autumn planting, these sets include ‘Red Winter’ (deep red, firm bulbs), ‘Snowball’ (white-skinned, maincrop, excellent storage), and ‘Shakespeare’ (golden-brown, crisp, heavy yields). Each variety brings unique flavour and colour to your cooking and garden beds.

• Red Winter: Dark red, flattish-round bulbs with red-rimmed flesh. Adds vibrant colour to salads and dishes.
• Snowball: White-skinned and fleshed, maincrop harvest in August. Renowned for good storage and a mild, sweet taste.
• Shakespeare: Golden-brown, crisp bulbs with a robust, traditional onion flavour. Heavy cropping and reliable yields.

Growing Guide

• Planting Time: Plant onion sets from autumn to early winter (September–December) for best results.
• Soil: Prefers well-drained, fertile soil with a neutral pH (6.0–7.0). Improve heavy soils with compost before planting.
• Sunlight: Full sun is ideal for strong growth and healthy bulb development.
• Spacing: Space sets 10–15cm apart in rows 25–30cm apart. Grows to 45cm tall, spreads 15cm.
• Watering: Keep soil moist but not waterlogged. Reduce watering as bulbs mature to encourage drying and storage life.
• Harvest: Harvest from July to August when foliage yellows and topples. Allow bulbs to dry before storing.

Care Tips

• Weed regularly to reduce competition for nutrients.
• Mulch lightly to retain moisture and suppress weeds.
• Rotate crops yearly to prevent disease build-up.
• Onions are hardy and tolerate light frosts.

Design & Companion Planting

• Perfect for containers, raised beds, or mixed vegetable borders.
• Companion plant with carrots, beetroot, or lettuce for a productive kitchen garden.

FAQs

• When is the best time to plant these onion sets?
  Plant from September to December for an early summer harvest the following year.
• How much space do I need?
  Each set needs about 10–15cm between bulbs. Suitable for small gardens, containers, or raised beds.
• What care do these onions require?
  Onions need well-drained soil, regular weeding, and full sun. Water moderately and harvest once the tops fall over and yellow.