Organic Radar Onion Sets

• Onion sets of this overwintering Japanese variety for planting from September, can even be planted in January, February and March.
• Very Winter hardy
• Can be pulled throughout Winter and Spring as scallions, or left to grow into mature onions.
• Radar onions will be ready for harvesting in late May/June, at least 4-5 weeks before spring planted sets will be ready.
• Onions need a friable, free-draining soil and it needs to be a fertile, weed-free, compost-enriched spot in full sun (no fresh manure).
• Sow 3cm deep and 4-5cm apart in the row with 30-40cm apart between the rows.

Average number of sets:

• 500g = 125 - 150 sets
• 1kg = 250 - 300 sets
• 10kg = 2,500- 3,000 sets
• 25kg bag = 6,000 - 7,000 sets

Autumn Planted Onions

The principal advantage of planting onion sets in the autumn is that your onions are ready to harvest around a month before spring-sown onion sets are. Also, because they are harvested around a month earlier, you can potentially immediately follow them with another crop that would be too late to plant a month later. Sweet corn and winter squash for example. For a good yield, onions need moist soil when they are bulking up in Spring.