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.

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

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

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.

Selected for its unusual flower color and heavy bloom. Pale blue flowers with darket blue veining show off greenish-yellow signals.

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

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

A very short and compact selection. Deep blue flowers grow on short stems close to the foliage giving a dense appearance. Prune lightly after blooms fade in summer.

Forms shorter tufted clumps of grassy evergreen foliage. Dark violet-blue flower spikes that resemble hyacinth, bloom late summer through fall.

Forms attractive tufted clumps of green and cream variegated foliage. Short spikes of violet-blue flowers bloom late summer through fall.

Deep blue flowers make a beautiful contrast to this first gold foliage Lithodora; leaves hold their color all summer. Vigorous groundcover, surprisingly good in the sun.

Compact plants with 6-8" spires of blue flowers.

Dwarf selection of Walker's Low. Forms attractive clumps of aromatic grey-green foliage. Masses of lavender-blue flowers bloom early and continue to bloom all summer. Sterile flowers will not reseed and result in extremely long bloom time.

Medium-sized plant with grey-green foliage. Unbelievable display of large, lavender-blue flowers all summer.

Forms very compact mounds with distinct silver, serrated foliage. Lavender-blue flowers bloom all summer. Very tidy plants with long bloom time.

A truly dwarf Nepeta that still produces a big display of large blue flowers that will bloom throughout the spring, summer and fall! Clump habit stays tidy and won't take over.

Forms dense tufts of arching, strap-shaped, dark green leaves with bright blue berries. This popular evergreen grass is tough, durable, very compact and perfect for adding texture to the garden.

Purplish-blue, bell-shaped blooms on compact flower spikes; upright habit. Attracts bees, butterflies and hummingbirds.

Fragrant silver-green foliage with open growth habit. Lovely lavender-blue flowers.

This seed selection produces clouds of small lavender-blue flowers on sturdy stems in summer that do not break or split! Outstanding late season garden interest with aromatic, silvery foliage. Blue Steel does not need vernalization to produce flowers.

The first and only compact, branching and early finishing Perovskia from seed. With a controlled habit and long flowering period, the lavender-blue flowers and attractive silver-green leaves work well in patio containers. The fragrant flowers and scented foliage are magnets for bees and butterflies.

Spikes of violet-blue flowers held in smoky purple calyxes from summer until fall on a dense mound of fragrant gray-green foliage; vigorous and early blooming.

The shortest variety to date, with the largest flowers! Forms compact mounds of silver-green foliage. Upright silver stems bare dense panicles of large lavender-blue flowers; maintains nice form.

Short and more compact. Maintains nice form with lavender-blue flowers

Light blue flowers, dark green glossy foliage.

Loads of fragrant, five-petaled, dark blue flowers above compact, medium green, lance-shaped foliage; long lived and carefree.  

Wonderful dwarf balloon flower with fully double periwinkle-blue flowers. Colorful buds and thick petals result in long-lasting bloom. Compact habit with excellent branching.

Interesting balloon-like buds open into fully double violet-blue flowers. Long blooming on an upright mound of green foliage. Nice addition to the border or in mixed containers and especially good for cutting. 

Large flower series with giant star-shaped blue flowers on compact well-branched plants. Quick and easy to grow.

Late spring upright blue flowers contrast boldly with the variegated cream and green ferny foliage. Use in borders where partial shade and protection from the hot afternoon sun is available, especially where summers are warm and humid.

A shade garden favorite with both excellent foliage and lovely flowers. Delicate, compound leaves and smooth, sprawling stems support clusters of bell-shaped, light blue flowers. Great source of nectar for the season's first pollinators. 

Stairway to Heaven' is a variegated form with cream and green foliage, leaf tips are pink in the cooler weather, fragrant violet-blue bell flowers rise above leaves in late spring, great for shade or beside a woodland path, prefers average to moist soil conditions, afternoon shade is recommended in warm summer regions.

Sport of Stairway to Heaven with more pure white variegation (no yellowing). A vigorous grower that holds up to the summer heat! Pale lavender blue flowers bloom early summer

Compact grower but more floriferous than most! Early pink buds open and mature to the deepest cobalt blue. Named for the small silver spots on the leaves.

Stunning recent introduction with solid silver-gray leaves edged with a fine dark green line mounds, under blue flowers. Extremely heat tolerant.

Deep green, brightly silver spotted leaves with profuse clusters of large, cobalt-blue flowers in spring; large, deer resistant mound.

The Mirage Salvias share all the best characteristics of other greggii such as their long blooming season and heat tolerance, but feature a more compact growth habit with better branching. Can be sold as an annual in the north; overwinters in the south.

Forms an impressive display of large, dark blue flowers that bloom early and will rebloom throughout the summer season, compact and well branched.

Very short and compact plants. Dark blue flowers; excellent rebloomer

April Night blooms about a month earlier than most varieties of this species! Vivid blue flowers on compact and branching plant. Tolerant of drought and mildew resistant. Suited for containers and/or gardens.

A short day Salvia variety that will finish in time for early spring sales- only 10 hours of daylength needed to set buds. Deep blue flowers appear on black stems in spring.

Largest flowers of all nemerosa varieties! Compact form; large spikes of deep blue flowers blooms all summer long. Remove faded flowers to encourage repeat blooming.