Allium 'Miami' (Ornamental onion 'Miami') — Clump forming

Overview

Allium 'Miami' is a clump forming 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 1-2 years. Allium 'Miami' 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 'Miami' is a clump-forming bulbous cultivar within the large genus Allium, which belongs to the Amaryllidaceae family. This deciduous plant typically reaches a height of 0.5 to 1 metre and spreads between 0.1 and 0.5 metres, achieving full height within 1 to 2 years. It thrives in full sun with a preference for west- or south-facing, sheltered positions. Suitable for chalk, loam, or sandy soils of varying pH levels, it requires moist but well-drained conditions. Allium 'Miami' is notable for its interest across spring, summer, and winter 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, Loam, Sand
Soil pH: Acid, Alkaline, Neutral
Soil moisture: Moist but well-drained, Well-drained
Aspect: West-facing, South-facing
Exposure: Sheltered
UK hardiness: H6

Plant details

Allium 'Miami' size, habit and characteristics

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

Care notes

Pruning and caring for Allium 'Miami'

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 'Miami'?

Allium 'Miami' prefers full sun. It suits sheltered positions.

What soil does Allium 'Miami' need?

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