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.

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.

Add intense color to the late-season garden with this violet-blue Aster. Eye-catching double blooms form a pom-pom shape and smother the compact and bushy foliage, fills out a container nicely.

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.

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.

The variegated leaves have an irregular almost pure white edge. Requires adequate moisture and shade to prevent leaf scorch. Very pretty sprays of sky-blue flowers appear in spring.

Grow and sell this new dwarf buddleia in the same year! This series features an abundance of flowers and continuous blooming from spring through late summer. The dense and upright container habit displays very well on benches and makes it perfect for garden borders, or even mixed combos and hanging baskets. Tolerant of rain and has a high drought tolerance once established. Downy mildew resistant. Great addition to any buttefly garden.

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.

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.

Large 6-7" rich periwinkle blue flowers with dark and light accents and a creamy yellow center. Compact plant perfect for small spaces. Blooms in late spring, reblooms in late summer. Very free flowering habit.

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.

Tall spires of dark blue flowers with white bee

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

An extremely floriferous and hardy series. Violet-blue double flowers bloom in spring and flush again in fall atop upright mounds of very fragrant blue-green foliage.

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.

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

Deep violet-blue flowers; very floriferous.

Large, 6 inch double, vibrant blue flowers. Long bloom time and attracts hummingbirds. Tetraploid; reblooms.

Large, 6 inch double, blue-violet flowers with gold and white sunburst blaze. Tetraploid.

Native species with blue-purple flowers in early summer; tolerant of wet soils.

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

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

Compact gray-green foliage with large violet-blue flowers. Flowers are larger than Munstead or Hidcote.