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Gerald L. Klingaman
Liliaceae
ALLIUM cepa 'Yellow Stuttgarter'
Garden Onion, Yellow Onion
The garden onion is a biennial widely grown as a vegetable. Pale hollow green leaves and long flower stems that sometimes have bulbils rather than flowers arise from bulbs with papery outer coverings. The cultivar ‘Yellow Stuttgarter’ is a deep yellow onion with pale yellow flesh. It has a strong flavor when eaten raw, but cooking reduces its potency.
Garden onions are categorized according to the day length at which they form bulbs. This cultivar requires the long days (14 hours or more) of the upper latitudes. It also stores well.
Garden onions require full sun and regular water. Grow them in loose, rich, well-drained soil. If you are planting onions from sets, or small bulbs, plant the bulbs just below the surface, with the neck showing. When most of the leaves are in decline, dig the bulbs and dry them in a shady well-ventilated place for several days. 'Yellow Stuttgarter’ matures early and is ready to harvest 120 days after sowing.
A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Vegetable
Full Sun, Partial Sun
2'-3' / 0.6m - 0.9m
4"-12" / 10.2cm - 30.5cm
Late Spring, Early Summer
World/Pandemic, North America, Europe, Russia/Siberia, Northern Africa, Asia, India
Neutral
Well Drained
Loam, Sand
Fast
Average Water
Upright/Erect
Showy
White, Yellow Green
Green, Gray Green
Green, Gray Green, Yellow Green
Yes
No
Single
Medium
Matte
Edible, Herb / Vegetable
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