Overview

Allium stenopetalum is a plant with a clump-forming habit in the genus Allium, part of the Amaryllidaceae family, with deciduous foliage. Allium stenopetalum grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H6. Suggested uses include borders, cut flowers, dried flowers and architectural planting.

About

Allium stenopetalum is a clump-forming cultivar within the Allium genus, known for its deciduous foliage. It thrives best in full sun and benefits from a sheltered position with south, east, or west-facing aspects. This plant prefers well-drained soils such as loam, sand, or chalk, and can tolerate a range of soil pH from acid to alkaline. Hardy to UK zone H6, it is suitable for use in borders, as cut or dried flowers, and for architectural planting. Propagation can be achieved through offsets or seed.

About the genus

Allium is a large genus of monocotyledonous flowering plants with 1112 accepted species, making Allium the largest genus in the family Amaryllidaceae and among the largest plant genera in the world. Many of the species are edible, and some have a long history of cultivation and human consumption such as the onion, garlic, scallions, shallots, leeks, and chives.

Wikipedia contributors, "Allium", CC BY-SA 4.0Allium

Growing conditions

Best soil and position for Allium

Sunlight
Full sun
Soil type
Loam, Sand, Chalk
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Well-drained
Aspect
South-facing, East-facing, West-facing
Exposure
Sheltered
UK hardiness
H6

Plant details

Allium stenopetalum size, habit and characteristics

Habit
Clump-forming
Foliage
Deciduous
Suggested uses
Borders, Cut flowers, Dried flowers, Architectural planting

Care notes

Pruning and caring for Allium stenopetalum

Propagation
Offsets, Seed
Pest resistance
Allium leaf miner, Onion fly
Disease resistance
Onion white rot, Onion downy mildew, Leek rust

Frequently asked questions

Where is the best place to plant Allium stenopetalum?

Allium stenopetalum prefers full sun. It suits sheltered positions.

What soil does Allium stenopetalum need?

Allium stenopetalum is adaptable and grows happily in most soil types, including loam, sand and chalk. It is happy in soil of any pH. Aim for soil that stays well-drained.

Is Allium stenopetalum hardy in the UK?

Allium stenopetalum has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.

How do I propagate Allium stenopetalum?

Offsets, Seed.

More in the Allium genus

Browse all Allium