Plants > Bulbs

Welsh onion

Allium fistulosum

Pollinator FriendlyFragrant

Genus: Allium
Family: Amaryllidaceae
Common Names: ciboul, Japanese bunching onion, Japanese leek, onion-leek, stone leek, Welsh leek

About this plant

An edible, bulbous perennial, remaining green virtually all year round and producing creamy-white flowers in mid-summer

Growing Information

Height

0.5-1 Metres

Spread

0.1-0.5 Metres

Hardiness

H3

Foliage

Deciduous, Semi Evergreen

Growing Conditions

Sunlight

Full SunPartial Shade

Soil

ClayChalkLoamSandy

pH

Acid

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Alkaline

Neutral

Moisture

Poorly Drained

Aspect

West FacingNorth FacingSouth FacingEast Facing

Exposure

ShelteredExposed

Care Guide

Cultivation

Easy to grow in fertile, well-drained soil. See the RHS A-Z guides to vegetable cultivation for further advice

Pruning

Deadhead after flowering

Propagation

Propagate by seed, or division at any time

Pests

Susceptible to slugs and snails

Diseases

Generally trouble-free but onion white rot and downy mildews may occur

Garden Uses

Uses

Ground CoverHedging Screens

Planting Places

Outdoor

Season of Interest

SpringSummerAutumnWinter

Size & Characteristics

Height

0.5-1 Metres

Spread

0.1-0.5 Metres

Habit

Climbing

Time to Full Height

Five To Ten Years