Nepeta Walker's Low (Walker's Low Catmint) is a robust variety with dark lavender-blue flowers in late spring and aromatic gray-green foliage. Thriving in harsh conditions, this dur...

Veronica pectinata (Woolly Speedwell) is one of our finest groundcovers. Growing with long stems of wooly evergreen foliage, the plants cover themselves with blue blooms, aging to la...

Nepeta 'Select Blue' (Select Blue Catmint) is a fantastic xeric perennial with dramatic lavender-blue flowers and handsome gray-green foliage. A recurrent bloomer, the first flush of...

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...

Penstemon heterophyllus Electric Blue is a selected form of the Foothills Beardtongue, a small growing evergreen shrub from California, that blooms in late spring with a memorable d...

Blue Hill is a superb selection grown for its late spring display of clear blue flowers held over sturdy compact mounds of green foliage. It is extremely cold hardy, resistant to bro...

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...

Little Trudy® Nepeta (Nepeta ‘Psfike’ PP18,904) is a compact, long-blooming Catmint with warm purple flowers that bloom from late spring through summer, attracting bees and butt...

Blue Reflection® Veronica (Speedwell) is a vigorous groundcover that covers its garden space with handsome evergreen foliage and a profuse late spring display of small blue flowe...

Lacy Blue Russian Sage (Perovskia atriplicifolia Lacey Blue) is a true dwarf cultivar discovered in an English garden and just recently introduced to the US. Its smaller size makes ...

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...

Walker's Deep Blue Catmint (Nepeta) is just like 'Walker's Low'--long blooming and easily grown--but with noticeably darker blue flowers....

Blue Hyssop (Hyssopus officinalis ssp. aristadus) is one of the very best Old World plants for attracting and feeding bees and bumble bees. A medicinal herb, its aromatic foliage, an...

‘Royal Velvet’ English Lavender (Lavandula angustifolia Royal Velvet) is very showy in bloom. It is covered with long stemmed, dark navy blue and lavender flower spikes. The 3 to...

Browsing animals will pass up this fragrant collection of brightly-colored, long-blooming plants. Ideally suited for growing conditions in the east and mid-west. Choice of 5 or 15 pl...

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 ...

Exclusive. Blue Lips has beautiful flowers and foliage. It blooms in late spring with short spikes of blue-lipped, lavender throated flowers. Shear off the faded flowers to reveal th...

‘Korean Zest’ Agastache (Agastache rugosa), with its refreshing mint scented flowers and foliage, blooms all season and attracts an amazing number of bees and butterflies to its ...

This beautiful, small growing species is native to the open Ponderosa forests and foothills of eastern CO and WY. The dainty spikes of blue, lavender-throated flowers are held over e...

15-18" tall x 12-18" wide. Geranium 'Johnson's Blue' is a beautiful, durable, perennial geranium with large, true blue flowers blooming from late spring into mid-summer. Drought re...

Blue Spike Sage or Bog Sage (Salvia uliginosa) is a tough, long blooming sage that flowers for months with compact spikes of rich sky-blue flowers. This perennial is exceptionally ea...

Our ‘All Star Penstemon Collection’ is a showcase of colors and forms that delivers more flowers every year. Enjoy warm red, pale pink, magenta, and inky purple flowers blooming ...

Exclusive. Salvia arizonica ‘Deep Blue’ (Deep Blue Arizona Sage) is a great native plant for planting in the shade, blooming all summer with numerous small, deep blue flowers ov...

Eryngium planum ‘Blue Glitter’ (Blue Glitter Sea Holly) is an outstanding perennial that thrives in hot dry planting situations and blooms in summer with tall stems of spiny, g...

Grand Mesa Beardtongue is a rare beauty native to the slopes of western Colorado. Its stunning in bloom with numerous deep cobalt-blue flowers held over attractive evergreen foliage....

Desert Purple Sage is a showy late spring blooming native shrublet with silver foliage and blue flowers pushing out from mid-purple bracts. Impervious to browsing deer and rabbits, ...