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Allium cristophii
Allium cristophii
Allium cristophii
Allium cristophii

Allium cristophii

TAXONOMY

FamilyAmaryllidaceae
GenusAllium
Zone5

ABOUT

Allium cristophii, commonly known as Star of Persia or Persian Onion, is a bulbous perennial plant in the Amaryllidaceae family. Native to Iran and Turkmenistan, it is known for its large, spherical flower heads composed of numerous star-shaped, metallic lilac flowers. The plant goes dormant in the summer after flowering.

ALSO KNOWN AS

Star Of Persia
Allium albopilosum
Allium bodeanum
Allium walteri
Caloscordum cristophii

OVERVIEW

WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Allium cristophii thrives in temperate climates with moderate temperatures. It prefers full sun and well-drained soil. Watering should be moderate, allowing the soil to dry out between waterings. The plant does not require high humidity and can tolerate average household humidity levels.
Soil
This plant prefers well-drained loamy soil. It is important to ensure good drainage to prevent bulb rot. A sandy loam mix can be beneficial, and the soil should be allowed to dry out almost completely between waterings.
Fertilizer
Allium cristophii benefits from a balanced fertilizer with a nutrient composition of 5-10-10. Fertilize in early spring as new growth begins and again after flowering to support bulb development.
Repotting
Repotting is generally not necessary for Allium cristophii as it is typically grown in the ground. However, if grown in containers, repot every 2-3 years in the fall after the plant has gone dormant. Use fresh, well-draining soil and ensure the container has adequate drainage holes.
Propagation
Propagation is typically done by dividing the bulbs in the fall. Carefully dig up the bulbs, separate the offsets, and replant them at the same depth. Ensure the soil is well-drained to prevent rot.
Pruning
Pruning is not required for Allium cristophii. After flowering, you can remove the spent flower heads to prevent self-seeding and tidy up the plant. Allow the foliage to die back naturally as it provides nutrients to the bulb for the next growing season.
Toxicity
Allium cristophii is not considered toxic to pets or humans. However, as with all Allium species, it is best to avoid ingestion by pets as it can cause mild gastrointestinal upset.
Additional
Allium cristophii is a striking ornamental plant that can add a unique architectural element to gardens. It is also deer and rodent resistant, making it a good choice for areas where these pests are a problem.
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