Plant Catalog › Penstemon barbatus 'Pristine Blue' Penstemon barbatus 'Pristine Blue' $0.00 Common Names: Beardlip Penstemon, Scarlet BuglerBlooms: SummerH: 15-20" W: 10-15"Color: Blue Shades Add To Cart Added! Common Names: Beardlip Penstemon, Scarlet BuglerBlooms: SummerH: 15-20" W: 10-15"Color: Blue Shades