Description
Allium cristophii, also known as Star of Persia, is a stunning allium with unique, star-shaped, metallic purple flower heads that can reach up to 20cm in diameter. The flowers sit atop tall, sturdy stems that can grow up to 70cm tall. Blooming in late spring to early summer, this allium is a showstopper in the garden, and its dried seed heads can be used in dried flower arrangements. The blue-green leaves are strap-shaped and grow in a clump at the base of the stem. This hardy perennial is easy to grow in well-draining soil and full sun, making it a great addition to any garden or as a cut flower.
Key Facts
- Common Name(s):Star of Persia
- Hardiness:Fully hardy through most of the UK
- How big will I get? Allium cristophii can grow to a height of 0.5m and a spread of 0.5m.
- Did You Know That:If grown in soil with no sulphur present at all, all Allium species will lose all their typical scent?
Plant Calendar
A rough guide to how this plant will change through the year.
Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | |
Flowering Time | ||||||||||||
Foliage Colour |
J | F | M | A | M | J | J | A | S | O | N | D |
Care Guide
Soil Requirements
Allium cristophii is a versatile plant and can cope with wet or drier soils, but prefers there to be decent drainage. This plant can grow in soil with a wide range of pH levels, it is not picky about the pH level of the soil.
Best Position
Allium cristophii prefers a sheltered position and requires full sun to thrive, this consists of more than six hours of direct sunshine per day.
Maintenance
Allium cristophii is fairly low maintenance and doesn’t require any pruning. Alliums are often kept untouched through Autumn and Winter due to the attractive shape of their seed head which is reminiscent of the flowers just without the colour. Any remaining growth can be cut back in early Spring to encourage fresh growth or immediately after flowering if you are wanting more space in your borders.
Pest, Diseases and Wildlife
Allium cristophii is generally pest free, and it tends not to have problems with diseases. It is also known to attract bees, butterflies and other pollinators. It is toxic to cats and dogs.