2018 PPA of the Year

Allium ‘Millenium’ has been selected by the Perennial Plant Association membership as the organization’s 2018 Perennial Plant of the Year.  And yes, the spelling is correct: There is only one “n” in the cultivar name.


The PPA’s Perennial Plant of the Year program began in 1990 to showcase a perennial that is a standout among its competitors.  In order to qualify for nomination, a plant must exhibit the following characteristics:

  • suitability for a wide range of climatic conditions
  • low maintenance requirements
  • relative pest and disease resistance
  • ready availability in the year of promotion
  • multiple seasons of ornamental interest


This Allium is amazing! From the Onion Man, Mark McDonough, `Millennium’ is the result of several generations of deliberate hybridizing. A compact grower, it is clothed in glossy green, narrow, upright strap like leaves which, during late summer, are topped with loads of shimmering iridescent pink-purple, 2-inch-wide, balloon like flower heads. Fantastic on a small or large scale, `Millennium’ looks great spread throughout a planting of sedums, or planted in groups as a terrific edger, ground cover, or accent plant. Great companions include Calamintha, Caryopteris, Echinacea, Heuchera, Perovskia, Sedums, Solidago, and ornamental grasses such as Pennisetums, Panicums, dwarf Miscanthus, and Sporobolus.


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