Forms upright clumps with very thick stalks of large violet-blue flowers, deeply cut glossy green leaves are thicker and larger then other species, superb cut flower.

No staking required! Upright, lavender-blue flowers appear from late summer to early fall on strong stems with dark green, deeply cut glossy foliage.

Vigorous plants with narrow dissected leaves, tall spikes of violet-blue flowers, excellent cut flower.

Wonderful fragrant licorice-scented foliage, exceptional long bloom time, violet-blue flowers.

The world's first-ever gold foliaged version of everyone's favorite Ajuga 'Chocolate Chip'! Brilliant gold foliage in the spring and summer is topped with cobalt-blue flowers on this vigorous groundcover; thrives in shade to partial sun.

Glossy dark purple to near black foliage that shimmers when wet! Cobalt blue flowers bloom during the summer. 

Three colors on a single plant! Stunning tri-color leaves of bright yellow, orange, and red on this new ultra-hardy hybrid Ajuga, plants are topped in spring with beautifully contrasting cobalt-blue flowers. 

Very dark burgundy, almost black glossy foliage. Dark violet-blue flowers bloom early spring. Plants are resistant to powdery mildew; heat tolerant.

Bright tricolor foliage variegation of burgundy, cream, and green. Blue flower spikes bloom early spring.

Compact selection with narrow dark green foliage, spectacular clusters of dark lavender-blue flowers bloom late spring, foliage turns bright yellow in fall for added color.

Tall arching stems with long narrow leaves give this plant a very delicate and graceful appearance, terminal clusters of light blue flowers bloom late spring to early summer, bright golden yellow foliage in fall adds spectacular color to the garden, slow growing but very long lived perennial.

Cheerful two-toned flowers are lavender-purple with blue centers. Spring blooms occur on short stems just above the low mounding foliage. Prefers part sun.

Attractive rust resistant foliage, compact plants, clear light blue flowers.

Lilac-blue flowers with yellow centers will cover the foliage of this Aster for weeks in fall, tidy compact-clumping habit, this beauty adds lots of color to the late season garden.

Strong sturdy stems with small blue-green leaves, long tapering spikes of indigo-blue pea-shaped flowers offer wonderful early summer color, long green peapods turn black in fall for added winter interest.

Relatively compact foliage with exceptionally long 24" flowering spikes of shimmering blue and white flowers; attractive blue-green foliage; vigorous grower and one the earliest to bloom.

Large green, heart-shaped leaves with delicate sprays of sky-blue flowers; tolerates more sun than variegated types.

A giant version of 'Jack Frost'; wide clumps of fuzzy king-sized silver-veined leaves with green margins and sprays of sky blue flowers; blooms early to late spring.

A sport from B. Langtrees with colorful frosty-silver leaves accented by light green veins; provides beautiful contrast to the shady garden, delicate sky-blue flowers.

An improved Jack Frost with larger heart-shaped leaves with more pronounced variegation, foliage has greater substance and is more heat tolerant, panicles of delicate sky-blue flowers provide added color in spring.

Similar to Looking Glass with almost solid silver foliage and narrow green veins, plants are a bit more vigorous and exhibit greater heat tolerance during the summer, panicles of sky-blue flowers bloom early spring.

Produces tons of 2" cup-shaped, medium blue flowers on top a low-mounded cushion of green leaves with wavy edges; drought tolerant; deadhead for continuous bloom.

Blooms up to 4 weeks earlier than Clips; great vigor and uniformity; 1.5" cup-shaped, violet blue flowers and dark green foliage.

Forms low mounds of bright golden scalloped foliage contrasted with lavender blue flowers late spring; best color in full sun and more lime-green in partial shade.

Forms compact mounds with narrow foliage, numerous spikes of bell-shaped lavender-blue flowers bloom spring thru summer, flowers are more upward and outward facing.

Vigorous low-growing habit with sprays of starry lavender-blue flowers all summer. Excellent for rock gardens where you need a plant with a wonderful cascading effect.

Unique, lavender-blue flowers on short internodes; blooms late summer to early fall. Compact, well-branched habit with fragrant foliage.

A small mounding shrub that produces loads of deep blue flower clusters from summer to fall; great for late season color. Foliage is very fragrant and silver-gray. Attracts butterflies, bees and other pollinators.

The fuzzy, green foliage sits below bright blue, fringed petals that are butterfly magnets.

Wiry stems with shiny green foliage; terminal clusters of gentian blue flowers bloom late summer until frost.

A low mound shrub-type of Clematis that needs no support. Can also be used as a groundcover that will crawl around existing plants in the garden. Prolific 4" sapphire-blue flowers appear summer through fall.

Huge 7-8" deep purple-blue flowers. Continuous blooms June-thru-Sept.

Loved by pollinators, these striking blue fragrant flowers will appear in spring and then rebloom prolifically in fall; foliage is bronze and doesn't go dormant in summer like other varieties; a vigorous and tough grower.

Vibrant blue flowers with light purple accents and white bees. Uniform growth habit; more compact and bloom earlier than typical Delphiniums.

Showy spikes of dark blue flowers with black centers will bloom June thru August, no staking needed, stays naturally compact.

Showy spikes of dark blue flowers with white centers will bloom June thru August, no staking needed, stays naturally compact.

Showy spikes of light blue flowers with white centers will bloom June thru August, no staking needed, stays naturally compact

Short and compact with delicate fern-like foliage, plants produce open panicles of deep blue flowers.

Tall spires of dark blue flowers with white bee

First true dwarf Sea Holly, forms low rosettes of deeply serrated blue- green leaves, colorful silver stems and blue flowers with spiny bracts add a unique color and texture to the garden.

An easy to grow Gentian with vivid blue flowers that are unlike any other, clusters of creamy-blue buds open to bright blue flowers midsummer through fall, drought resistant and loved by hummingbirds and butterflies, requires well-drained soil.

Fast growing and longer blooming than 'Johnson's Blue'; medium green deeply divided foliage, large cup-shaped clear blue flowers with a small white eye; plants bloom May till July and rebloom in fall during cooler weather.

Very popular variety with violet-blue flowers; long flowering. Considered one of the best blue geraniums.

A seedling from Brookside with larger 1" blue flowers with attractive violet veins, deeply divided green foliage is slightly more compact, very long flowering with good rebloom in fall.

Best new introduction for continuous summer bloom. Huge 2½" saucer-shaped, violet-blue flowers with white centers; attractive deep green foliage with lighter chartreuse marbling. Plants are vigorous and quickly spreading, yet remain compact and under control. Better heat tolerance allows for continuous summer bloom.

Worlds first perennial Hydrangea! No cooling or daylength extenstion to initiate flowers, flowers continuously all spring and summer

Mid-late season blooms;  medium blue with billowing ruffled edges. Prolific bloomer with 8-10 buds per stem; reblooms.

Green and white striped foliage under very fragrant lavender-blue flowers.