Allium christophii, also known as Star of Persia, is another eye-catching Allium. I have a few on the east side of the Crabapple Bed, growing up out of a border of Daylilies.
What’s striking about this Allium is, first, the size of the flower head, usually about 10″. To me it has a silvery sheen, but Anna Pavord calls it “grayish mauve”.
The shape reminds me of the geodesic dome from the 1967 World’s Fair of my childhood memories.
The stems are upright, so that the flowers do not flop. They are not known for naturalizing. In fact I wonder how long they will last in their present home, where the foliage is mostly hidden and does not have much opportunity to absorb energy from the sun.
They may not be one of the most beautiful Alliums, but they are one of the most interesting. I’ll enjoy them as long as they last.