(Allium cepa) If you’ve ever grown onions from Dutch sets before, chances are you’ve already grown Stuttgarter. For many years, it was the industry standard for set production. The somewhat flattened, medium-sized bulbs have a very attractive glossy bronze skin and excellent storing firm flesh. In a storage onion taste trial put on by the Culinary Breeding Network, it generated some of the most praise from Portland-area chefs and growers of the 15 or so varieties tasted. Excellent!
100 days. Long day. UO

Packet: 100 seeds

[split]

Growing Info

SOWING:

Sow indoors from late Feb-mid March, 6-8 weeks before your last frost.

Transplant out 4-6 weeks before the last frost date (April-early May).

Note: Long-day onions are perfect for growing at higher latitudes, north of 35 degrees.

PLANTING DEPTH:

1/4-1/2"

SPACING:

4" spacing in rows 15-24" apart.

EMERGENCE:

7-14 days @ soil temp 60-75F

LIGHT:

Full sun

FERTILITY:

Medium-Heavy. Prefers well-drained, loamy, well-balanced fertile soil with a pH between 6.0-7.0.

ADDITIONAL NOTES:

Alliums would like you to keep them well-weeded as they are slow-growing and compete poorly.

Onion bulbing is sensitive to day-length.

Shallow-rooted onions prefer even watering.

Harvest when the tops have fallen over. We sun-cure, placing the bulbs on screens and taking care to cover each one with the next onions leaves.

Storage Onion, 'Stuttgarter Riesen'