Allium 'Mont Blanc' (allium 'Mont Blanc') — Columnar upright

Overview

Allium 'Mont Blanc' is a columnar upright bulbs in the genus Allium, part of the Amaryllidaceae family, with deciduous foliage. It typically grows around 0.5-1 metres tall and 0.1-0.5 metres wide, reaching full size in around 2-5 years. Allium 'Mont Blanc' grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H6. Suggested uses include wildlife gardens and wildflower meadows.

About

Allium 'Mont Blanc' is a bulbous cultivar within the large Allium genus, known for its columnar upright habit and deciduous foliage. It typically reaches a height of 0.5 to 1 metre with a spread of 0.1 to 0.5 metres, taking 2 to 5 years to reach full height. This cultivar thrives in full sun with a preference for south- or west-facing, sheltered locations. It adapts well to various soil types including chalk, clay, loam, and sand, and tolerates a range of pH levels from acid to alkaline. Allium 'Mont Blanc' is notable for its interest during the spring and summer seasons.

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 4.0 — Allium

Growing conditions

Best soil and position for Allium

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

Plant details

Allium 'Mont Blanc' size, habit and characteristics

Plant type: Bulbs
Habit: Columnar upright
Foliage: Deciduous
Height: 0.5-1 metres
Spread: 0.1-0.5 metres
Time to full height: 2-5 years
Suggested uses: Wildlife gardens, Wildflower meadows

Care notes

Pruning and caring for Allium 'Mont Blanc'

Propagation: Seed, Division
Pest resistance: Generally pest-free
Disease resistance: Onion white rot, Downy mildews

Frequently asked questions

Where is the best place to plant Allium 'Mont Blanc'?

Allium 'Mont Blanc' prefers full sun. It suits sheltered positions.

What soil does Allium 'Mont Blanc' need?

Allium 'Mont Blanc' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to well-drained.