About

Allium cepa (Cepa Group) 'Stuttgarter' is a well-regarded onion variety characterized by its flat, round shape and yellow-brown outer skin. This onion can be harvested in the summer months and is known for its excellent storage capabilities. It offers a mild, sweet taste that enhances a variety of dishes.

About the genus

Allium consists of bulbous herbaceous perennials characterized by a pronounced onion or garlic aroma. They feature linear, strap-like, or cylindrical leaves that arise from the base. The flowers, which can be star-shaped or bell-shaped, are arranged in an umbel atop a stem that lacks leaves.

Growing conditions

Sunlight
Full sun
Soil type
Clay, Loam, Sand
Soil pH
Neutral
Soil moisture
Well-drained
Aspect
South-facing, West-facing
Exposure
Sheltered
UK hardiness
H3

Plant details

Plant type
Herbs - Culinary, Bulbs
Habit
Clump forming
Foliage
Deciduous
Height
0.1-0.5 metres
Spread
0.1-0.5 metres
Time to full height
1 year

Care notes

Cultivation
Grow in fertile, moist but well drained soil, in full sun, in a sheltered site. Grow mint or other strong smelling companion plants near onion to deter onion fly. See Vegetable Cultivation
Pruning
No pruning required
Propagation
Propagate by seed. See sowing vegetable seeds
Pest resistance
May be susceptible to onion fly. Birds may be a problem when young, cover with fleece until sets have rooted in
Disease resistance
May be susceptible onion white rot, leek rust and downy mildew