Onion Sets Stur BC 20 – Late Season Storage Onion

Onion Sets ‘Stur BC 20’ – Late Season Storage Onion

Onion Sets ‘Stur BC 20’ is a reliable late-season onion variety, bred for strong performance and excellent long-term storage. Known for its slow bolting habit, this variety develops steadily and produces onions that keep well for extended periods after harvest.

Ideal for gardeners and allotment growers looking for a dependable storage onion, Stur BC 20 offers consistent results and is well suited to a wide range of growing conditions. Its late-season nature makes it a great complement to earlier onion varieties, extending harvest and storage availability.

These onion sets are part of the “Difference is JustSeed” range, selected for quality, reliability, and grower confidence.

Key Features

• Late-season onion set variety

• Slow to bolt, reducing the risk of premature flowering

• Excellent storage and keeping qualities

• Reliable performance in gardens and allotments

• Ideal for growers wanting onions that store well

• Easy to grow and suitable for all experience levels

• Part of the Difference is JustSeed range

How to Grow Onion Sets ‘Stur BC 20’

Store onion sets in a cool, dry, frost-free place until planting to prevent early sprouting.

Plant sets outdoors from March to April, or earlier in mild areas if conditions allow. Plant each set with the tip just visible above the soil surface, spacing sets around 10–15 cm apart, with 30 cm between rows.

Grow in a sunny position with well-drained soil. Keep beds weed-free and water during dry spells.

Harvest onions in late summer to early autumn once the foliage turns yellow and begins to fall over. Lift bulbs and dry thoroughly before storing in a cool, dry place.

Frequently Asked Questions

Is Stur BC 20 good for storage?
Yes. This variety is specifically valued for its long storage period.

Does it bolt easily?
No. Stur BC 20 is slow to bolt, making it more reliable than many other varieties.

How should I store the sets before planting?
Keep them cool, dry, and frost-free to avoid early growth.

Is this suitable for beginners?
Yes. Onion sets are easy to grow and Stur BC 20 is a forgiving and dependable variety.

Perfect For

• Garden and allotment growing

• Growers wanting long-storing onions

• Late-season onion production

• Beginner and experienced gardeners