previous
  • Fragrant Plants for Pathways
    Fragrant Plants for Pathways
  • Pretty in Pink
    Pretty in Pink
  • Plants that Spark!
    Plants that Spark!
  • Lawn Alternatives
    Lawn Alternatives
  • Indeterminate or Determinate Tomatoes?
    Indeterminate or Determinate Tomatoes?
  • NEW Video Series: There's a Better Way
    NEW Video Series: There's a Better Way
  • 6 Tips for Weed Control
    6 Tips for Weed Control
  • Slideshow: Beautiful Clematis
    Slideshow: Beautiful Clematis
  • Thoughts From a Foreign Field
    Thoughts From a Foreign Field
  • Elephant's Ears
    Elephant's Ears
  • Comfortable Alfresco Dining
    Comfortable Alfresco Dining
  • Make a Succulent Topiary
    Make a Succulent Topiary
  • Garden Confidential: A Plant Walks into a Bar
    Garden Confidential: A Plant Walks into a Bar
  • Save Money by Growing Your Own
    Save Money by Growing Your Own
  • Homegrown / Homemade
    Homegrown / Homemade
  • In Pursuit of the Perfect Potting Shed
    In Pursuit of the Perfect Potting Shed
  • Designing with Curved Terraces
    Designing with Curved Terraces
  • Plant an Easy-to-Water Strawberry Jar
    Plant an Easy-to-Water Strawberry Jar
  • Stylish Shady Containers
    Stylish Shady Containers
  • Fast-Growing Trees for Impatient Gardeners
    Fast-Growing Trees for Impatient Gardeners
  • Containers as Focal Points
    Containers as Focal Points
  • Mulch for a Healthy Garden
    Mulch for a Healthy Garden
  • Building a Compost Bin
    Building a Compost Bin
  • Dwarf Citrus Trees
    Dwarf Citrus Trees
  • Colorful Selections for Shade
    Colorful Selections for Shade
next

Browse Plants

Narrowed By:Tolerance: Frost Tolerant+ Flower Color: Blue
Displaying 1 - 20 of 21 listings   1 | 2View AllNext > Sort By: Sort
Aster oblongifolius 'October Skies' Aster oblongifolius 'October Skies'
(October skies aster)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'October Skies' is a dwarf aster that is low to the ground and mounding. It flowers in the fall when most other plants have finished for the season, covering itself with hundreds of dark sky-blue flowers.

Aster tataricus Aster tataricus
(Tatarian aster)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Tatarian aster is an impressive, stately perennial with a flowering height of 3 to 6 feet. It can look you in the eye yet require no staking. More important, this aster flowers longer than any other garden aster, beginning in late September and early October and continuing into November. The 1-inch-wide, light lavender flowers are a magnet for local and migrating monarch butterflies. This plant tolerates many soil types, can form large colonies in a few years, and is easily divided.

Browallia americana Browallia americana
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces distinct, 2-inch blossoms primarily in rich blue (but also in shades of purple and white), with dark eyes smudged white. It is suitable for sun and partial shade.

Buddleia davidii 'Black Knight' Buddleia davidii 'Black Knight'
(Butterfly bush, Summer lilac)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Butterfly bushes are carefree deciduous shrubs that are reliably fragrant and easy to grow. Butterflies swarm to their blooms all summer long. 'Black Knight' has deep purple-blue, almost black, flowers in elongated clusters on arching branches to 10 feet tall if not cut back, and half that size if cut back. The blooms come from early summer to first frost. The foliage is willow-like and grayish green.

Festuca glauca 'Elijah Blue' Festuca glauca 'Elijah Blue'
(Blue fescue, Gray fescue)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These compact tufts of 8-inch-long powder-blue leaves are well suited for edging and naturalizing in the rock garden. 

Helleborus 'Ivory Prince' Helleborus 'Ivory Prince'
(Hellebore)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Year-round gray-green foliage persists through shade and snow and is fairly deer and rabbit resistant. Flowers appear in early spring with daffodils and tulips. This cultivar produces flowers that sit well above the foliage and point upward, which adds to its showiness.

no image available Hepatica acutiloba
(Liverwort, Sharp-leaved hepatica)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

An early bloomer, liverwort has tiny, cup-shaped, blue, pink, or white flowers in spring. Three-lobed, mottled, mid-green leaves appear after the blooms.

Hydrangea macrophylla Hydrangea macrophylla
(Bigleaf hydrangea, Hortensia, Lace-cap hydrangea, Florist's Hydrangea)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the most widely recognized species of hydrangeas. It boasts a plentiful number of cultivars. The species is divided into two groups: the Hortensias (or "mopheads") have globe-shaped flowers made up of large male flowers, and the Lacecaps have flattened flower heads, with central, female blossoms ringed in larger, male blossoms. 

Hydrangea macrophylla 'Mathilda Gutges' Hydrangea macrophylla 'Mathilda Gutges'
(Bigleaf hydrangea)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This compact shrub bears attractive deep green leaves and large, rounded flower heads of deep pink in neutral soil, and intense violet-blue in acidic soil.

Hydrangea macrophylla 'Nikko Blue' Hydrangea macrophylla 'Nikko Blue'
(Bigleaf hydrangea, Florist's hydrangea)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a well-loved and vigorous cultivar with large, rounded flower heads of a rich, gorgeous blue.

Hydrangea macrophylla 'Variegata' Hydrangea macrophylla 'Variegata'
(Bigleaf hydrangea, Florist's hydrangea)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mound-forming shrub has white leaf margins and blue or pink lacecap inflorescences.

Hydrangea serrata Hydrangea serrata
(Mountain hydrangea)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species was formerly grouped with the Lacecap hydrangeas because of its flattened flowerheads that consist of central, small florets surrounded by showy, larger florets. It is similiar to H. macrophylla but is a more compact plant with smaller flowers and leaves.

Muscari armeniacum 'Blue Spike' Muscari armeniacum 'Blue Spike'
(Grape hyacinth)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These double-flowered grape hyacinths are a good candidate for beds and borders because they increase only by division. They also bloom longer than those that hasten through spring eager to set seed. April-flowering 'Blue Spike' has the largest inflorescence of the species, with fully double flax-blue fluffy heads (each pedicel carries multiple individual flowers instead of one) and narrow, linear leaves.

Muscari armeniacum 'Fantasy Creation' Muscari armeniacum 'Fantasy Creation'
(Grape hyacinth)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These double-flowered grape hyacinths are a good candidate for beds and borders because they increase only by division. They also bloom longer than those that hasten through spring eager to set seed. 'Fantasy Creation', a sport of 'Blue Spike', has a large pyramidal raceme resembling broccoli. Its blue flowers gradually turn purple, then green, fading toward yellow. It doesn't wilt and rarely sets seed, making it useful for dried flower arrangements.

Muscari armeniacum 'Saffier' Muscari armeniacum 'Saffier'
(Grape hyacinth)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Grape hyacinths are hardy, easy to grow, and have long-lasting blooms--no garden should be without them. 'Saffier' is a good candidate for beds and borders because it increases only by division. Its strong, rigid flower stalks start celery-green and mature to robust medium-blue blossoms with distinct pale-green lips at the mouth of each floret. The constricted openings prevent access to pollinating insects, resulting in blooms that last a full month and making them excellent cut flowers.

Muscari azureum Muscari azureum
(Grape hyacinth)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Grape hyacinths are hardy, easy to grow, and have long-lasting blooms--no garden should be without them. They are particularly spectacular when allowed to naturalize, whether under trees, along a pathway, tucked into ground covers, or in a bed. This species blooms early, in March in some areas. It has sky-blue frilled bells with indigo stripes. Although the blossoms aren't long-lived, they self-sow freely, providing more flowers to enjoy the following year.

Muscari latifolium Muscari latifolium
(Grape hyacinth)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

From fleshy leaves arise bell-shaped, purplish blue, sometimes almost black, flowers. Flower heads appear two-toned due to paler crowns, which are sterile flowers. Grape hyacinth is good for naturalizing in gardens or lawns, for forcing or growing in container displays, and for rock gardens.

Veronica longifolia 'Sunny Border Blue' Veronica longifolia 'Sunny Border Blue'
(Speedwell)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This fine Veronica was the Perennial Plant of the Year in 1993. From early summer to frost this upright cultivar forms branched spikes (to 7 inches long) of dark violet-blue flowers. It has glossy and crinkled dark green leaves, and grows to less than 2 feet tall. It is a fine choice for adding long-season color to a mixed border.

no image available Veronica pectinata
(Blue woolly speedwell, Woolly speedwell)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This dense, mat-forming species has 3-inch-tall evergreen foliage with toothed gray leaves. Its saucer-shaped flowers are deep blue with white eyes, and they bloom from early spring to summer. It is drought tolerant and makes a good groundcover. In garden sites, it needs protection from winter moisture.

no image available Veronica peduncularis 'Georgia Blue'
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Georgia Blue' forms beautiful mats of purple-tinged leaves. In spring, this free-flowering groundcover boasts abundant iridescent blue flowers. It grows to about 9 inches high and a foot wide. It is a vigorous and easy-to-grow cultivar.


Displaying 1 - 20 of 21 listings   1 | 2View AllNext > Sort By: Sort