Perovskia atriplicifolia Blue Spires (Blue Spires Russian Sage) is the best large growing Russian Sage selection blooming with dark blue flower spikes appearing in mid-summer. Though...

Rocky Mountain beardtongue, with its spikes of bright blue flowers and evergreen foliage, is one of the easiest-to-grow Penstemon. Long-lived, this beauty thrives in most any well-dr...

Dark Knight Blue Mist spirea (Caryopteris clandonensis) blooms with a profusion of dark blue flowers in late summer when few other shrubs are flowering. Its modest size makes it very...

First Choice is a newer selection with particularly deep blue flowers and a more compact mature size than other Blue Mist spirea. Blooming late summer it is an invaluable nectar sour...

Blue Glow is an Old World wildflower that blooms in mid-summer. The deep blue globe-like flowers are held high above the attactive thistle-like foliage. One of the very best flowers ...