Veronica longifolia (V. maxima)
 

 
 
Small, lilac-blue, borne in pyramidal spikes
Summer
 
 
 
  • var. subsessilis - royal-blue flower spikes in late July and is called the Clump Veronica

  • 'Blue Champion' - Medium blue flowers from July-September

  • 'Icicle' - 2 foot clumps of gray foliage and provides 3 months of bloom

  • 'Sunny Border Blue' - stocky, 18-24 inches plant with good flowers during July-August

 
 

 

 
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