'Spider' produces perhaps the largest flower heads in the genus reaching up to a foot across! This hybrid Allium has the awesome firework effect of A. schubertii and the deeper, richer, red-purple flower colour of A. atropurpureum. Few plants can offer the unique flower forms of ornamental onions. Every garden should have Alliums. Plant in multiples of 3, 5, 7 or more. Don't fret when foliage starts to die back just before flowering. It's normal. Just trim the leaves.
Miscellaneous - Garden Origin