Allium cepa (Cepa Group) 'Sturon'

RHS Plant Profile
onion 'Sturon'
Award of Garden Merit
Herbs - Culinary Bulbs

A traditional variety popular for its reliability, producing semi-round, straw coloured bulbs with good keeping qualities

Position

Full sun

Soil Types

Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1 year
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Clay Loam Sand
Moisture
Well–drained
pH
Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness
H3

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Amaryllidaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Allium are bulbous herbaceous perennials with a strong onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem
Name Status
Accepted

How to Grow

Cultivation

Grow in fertile, moist but well drained soil, in full sun, in a sheltered site. Plant out sets in March-April for a late Summer harvest or in Autumn for a Summer harvest the following year. See Vegetable Cultivation

Propagation

Propagate by seed. See sowing vegetable seeds

Pruning

No pruning required

Pests

May be susceptible to onion fly. Birds may be a problem when young, cover with fleece until sets have rooted in

Diseases

May be susceptible to onion white rot, leek rust, downy mildew and bolting