Airy plumes with numerous small, barely blue flowers over mint-scented, oregano-like foliage from June to October. Great in rock walls. It does need good drainage. It looks like a small, light blue Heuchera when in flower, which seems like all the time. 2021 Perennial Plant of the Year by the Perennial Plant Association.
Loose, white, flat-topped flowers over deep green foliage with hairy stems. E. perfoliatum is a clumping, slightly aromatic, easy to grow plant with low maintenance. Great for attracting butterflies. E. perfoliatum may be used in border and wildflower gardens, around the banks of a pond and in areas in which it may naturalize.