Overview
Allium cristophii is a clump forming bulbs in the genus Allium, part of the Amaryllidaceae family, with deciduous foliage. It typically grows around 0.1-0.5 metres tall and 0.1-0.5 metres wide, reaching full size in around 1-2 years. Allium cristophii grows best in full sun, and tolerates most soils and any pH.
About
Allium cristophii, the Persian onion or star of Persia, is a species of flowering plant in the family Amaryllidaceae, native to Iran, Turkey, and Turkmenistan, though grown as an ornamental bulbous plant in many parts of the world. Star of Persia grows to 50 cm (20 in) and is cultivated in gardens for its large showy umbels of silvery pink star-shaped flowers, 20–25 cm (7.9–9.8 in) in diameter, which appear in early summer. The flowers are followed by attractive fruiting clusters. The plant has received the Royal Horticultural Society's Award of Garden Merit. Mature plants reach roughly 0.1-0.5 metres tall and 0.1-0.5 metres wide, carrying deciduous foliage. In the garden it prefers full sun and most soil types. It tolerates soil of any pH, moist but well-drained, well-drained conditions and west-facing and south-facing aspects.
Wikipedia contributors, CC BY-SA 4.0 — Allium cristophii
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
Plant details
Allium cristophii size, habit and characteristics
- Plant type
- Bulbs
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1-2 years
Frequently asked questions
Where is the best place to plant Allium cristophii?
Allium cristophii prefers full sun. It suits sheltered positions.
What soil does Allium cristophii need?
Allium cristophii 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.
How big does Allium cristophii grow?
Allium cristophii reaches a height of 0.1-0.5 metres and a spread of 0.1-0.5 metres. It takes around 1-2 years to reach full size.
More in the Allium genus
- Allium 'Judith'

- Allium 'Summer Beauty'

- Allium cepa 'Goldito'
- Allium christophii (albopilosum)Star of Persia

- Allium hookeri 'Zorami'Hooker Chives

- Allium phanerantherumconspicuous-anthered garlic

- Allium 'Millenium'
- Allium schmitzii