GARDENS BY THE BAY

Papaver somniferum - Opium Poppy

SILVER FOLIAGE PERENNIALS & THEIR COMPANIONS - 2



Part of the family of colours called "white", silver can be a gray-green hue, a gray hue or a silver hue, all with darker and lighter tones. Gray-greens and grays will blend with nearly any colour and are excellent when used to separate discordant colours.

Note, however, that a pure silver, like white itself, should be used with care as it can overwhelm everything nearby.


* Watch for the animated hummingbird and butterfly with the plants that attract them. *
The deer icon indicates plants that deer are not usually attracted to.

* * The best time and method to propagate the plants below can be found on our image-intensive PROPAGATION page. * *
* * To help your plants grow their best, follow the link to our FERTILIZATION page. * *

* * * To find a particular plant, activate Find with Ctrl+F, type in the plant name, then click the Find button * * *


CORNUS

Dogwood, a shrub that can remain attractive throughout the year, has some forms with silvery foliage. Plant them in full sun to part shade and enjoy the show.

Cornus alba var. 'Argenteo-Marginata':  Silverleaf Dogwood

    above:  Eranthis hyemalis, pale Narcissus forms
There are other ornamental forms of Dogwood with showy spring flowers. Check them out at the link below.

  • white-flowered Dogwood



  • CYNARA

    Cardoon, with wonderful silvery-grey foliage, makes an excellent albeit huge and dramatic background plant. Only hardy to Zone 7, it is worth growing as an annual in colder zones.

    Cynara cardunculus:  

      with:   4' tall Euphorbia palustris (Marsh Spurge)
        for foliage contrast with:  Schizachyrium scoparium (Little Blue Stem grass) & Stachys 'Big Ears'

      DIANTHUS

      Pinks come in a variety of forms with silvery foliage, usually with a grey or bluish tint.

      Dianthus arenarius:  Sand Pinks, 8"/20 cm, fringed petals, fragrant white flowers, silvery-blue foliage

        white Dianthus arenarius
        seen in the photograph above offset in front of new foliage of Helictotrichon sempervirens (Blue Oat Grass)
          in front of:  Iris x germanica
            between:  Nepeta x faassenii & Iberis sempervirens
              over bulbs:  Iris reticulata, Iris histrioides major
            Dianthus deltoides 'Mrs. Sinkins':  12", highly fragrant double white flowers, steel-grey foliage
              with:  dark foliage plants i.e. Heuchera
            Dianthus plumarius 'Ballad Blend':  colours include white, pink, red, rose, salmon, 15", silvery-blue somewhat spiky foliage
              Dianthus plumarius 'Ballad Blend'
              note:  some flowers are "banded", all have dark eyes, may rebloom slightly in late summer, not as fragrant as Cottage Pinks
                synonym:  Dianthus Ballade Strain
                  with:  lavender, Nepeta x faassenii
                    with:  pink Rosa of various hues
                  For a multitude of other Dianthus forms, more information about their culture and preferred sites and numerous images, be sure to try some of the links below.

                • edging Dianthus forms
                • pink-flowered Dianthus
                • red-flowered Dianthus
                • white-flowered Dianthus
                • yellow-flowered Dianthus



                • ECHINOPS

                  Globe Thistle, its foliage a lovely grey-green, nevertheless gives an over-all silvery appearance to the spot it normally occupies as a backdrop in a garden setting.

                  Echinops:  Globe Thistle

                    Echinops ritro - Globe Thistle
                    with:  Achillea 'Red Beauty', Achillea x 'Moonshine', Aster novi-belgii 'Benary's Composition Mix',
                      Heuchera sanguinea, Lavandula, Lavandula angustifolia 'Munstead', Liatris
                    with:  Hemerocallis (lemon yellow), canary yellow 'Hyperion', light orange 'Painted Lady', golden-yellow 'Stella d'Oro'
                      with:  Phlox paniculata 'Mount Fujiyama' (an excellent white)
                        with:  Lilium 'Thunderbolt' (an apricot Trumpet type), Perovskia atriplicifolia, Rudbeckia laciniata 'Goldquelle'
                          beside:  Alcea, Alcea rugosa (soft yellow)
                            in moist soil with:  Ligularia stenocephala 'The Rocket'
                              in dry soil with:  Verbena including Verbena bonariensis
                                combined with:  Echinacea purpurea 'White Swan', Scabiosa 'Pink Mist' & Verbascum 'Benary's Hybrids'
                                  combined with: Echinacea purpurea 'White Swan', Liatris ligulistylis, Alcea rugosa & Buddleia 'Red Plume'
                                Echinops ritro 'Taplow Blue':  steel-blue flowers, 2" across, foliage 6-8" long, Zone 6
                                  with:  Achillea x 'Coronation Gold', Kniphofia 'Royal Castle Hybrids'
                                Echinops ruthenicus:  bright blue
                                  with:  Hemerocallis (especially lemon or creamy yellow ones
                                    with:  Hemerocallis 'Ice Cap' (pale cream-petalled, lemon-yellow throated)
                                  Follow the links below for more ideas and information.

                                • Globe Thistle to attract Butterflies
                                • blue-flowered Globe Thistle



                                • ERYNGIUM

                                  Sea Holly, otherwise known as Eryngo, blooms in summer and fall and thrives in full sun and dry soil. Steely-blue flowers steal the show but the subtly silvery foliage is handsome even before the blooms appear. Choose the site carefully. These are tap-rooted perennials which are difficult to move once established.

                                  Eryngium:  

                                    with:  Artemisia x 'Powis Castle'
                                  For an amazing number of forms of this wonderful perennial, information about their care, and plant partnership ideas, just follow the link below.

                                • Simply Special Perennials - Sea Holly's many forms



                                • EUPHORBIA

                                  You will be delighted with the effect created by the silvery foliage of some forms of Spurge.

                                  Euphorbia myrsinites:  Donkey-Tail Spurge, Myrtle Euphorbia, blue-gray foliage

                                    Euphorbia myrsinites - Donkey-Tail Spurge
                                    where:  at border edges, to drape over rocks
                                      seen above with:  purple Aubrieta in the spring
                                    Follow the link below for more forms of Spurge and the companions that suit them best.

                                  • yellow-flowered Spurge



                                  • FESTUCA

                                    Even Ornamental Grasses can possess a silvery effect, such as that of some of the Fescues.

                                    Festuca:  Blue Fescue, under 12"x8-12"


                                    GYPSOPHILA

                                    Baby's Breath, with its airy flowers, is as useful in the garden as it is in any flower arrangement. Consider as well the foliage - it can be blue-green to a gray-green which assumes a silvery appearance.

                                    Gypsophila paniculata:  Baby's Breath

                                    Gypsophila paniculata 'Double White':  Baby's Breath Gypsophila paniculata 'Perfecta':  double white Baby's Breath Not all forms of Baby's Breath have silvery foliage, or for that matter, white flowers. Follow the links before for alternatives.

                                  • pink-flowered Baby's Breath
                                  • white-flowered Baby's Breath



                                  • HELICTOTRICHON

                                    Blue Oat Grass is often described more as a metallic blue colour than silver or grey. There are those who think its overall effect is silvery. However you describe it, this grass will fare best in well-drained, fertile soil in full sun. Good air circulation will ensure handsome foliage. Hot, humid summers are definitively not to its liking. Do not cut this grass back in spring as with other ornamental grasses. Use your fingers to comb out old, loose foliage.

                                    Helictotrichon sempervirens:  


                                    HEUCHERA

                                    Coral Bells, in its myriad forms, has nearly always been about the foliage. The wonderful variations create quite a sensation when there is a haze of silver above the underlying patterns and colours. The degree of silvering on the leaves can range from heavy to subtle. The cultivars mentioned below only touch the surface of the many new and wonderful silver Heuchera forms widely available today.

                                    CULTIVARS WITH HEAVILY SILVERED FOLIAGE

                                  • Heuchera 'Fantasia':  highly silvered, lobed foliage looks shimmery, pink flowers
                                  • Heuchera 'Geisha's Fan:  8"x15", elegant, silver foliage with charcoal veining, light pink flowers on 18" stems
                                  • Heuchera x 'Silver Scrolls':  18-24"x18", bronze, silver & maroon foliage etched wine-red, pink buds open to white blooms


                                  • CULTIVARS WITH MORE SUBTLY SILVERED FOLIAGE

                                  • Heuchera 'Autumn Haze':  8"x18", crimson foliage with silver veins, pink flowers on 24" stalks
                                  • Heuchera 'Can Can':  metallic silver foliage, heavy ruffling at edges, foliage to 9", flower stems to 26"
                                  • Heuchera 'Cascade Dawn':  8"x17", deep purple foliage with lavender & silvery tones, flowers on 26" stems
                                  • Heuchera 'Green Spice':  silvery-white foliage with green veining, turning purple in colder weather, cream flowers on 28" stems
                                  • Heuchera 'Guardian Angel':  young foliage is bright purple, becoming heavily silvered with age, white flowers on purple stems
                                  • Heuchera 'Plum Pudding':  plum-coloured, silver-tinged foliage to 10", insignificant white flowers
                                  • Heuchera 'Quicksilver':  metallic silver foliage with bronze veins, pale pink flowers age to white, to 18"
                                  • Heuchera 'Raspberry Ice':  two-toned pink flowers, silver veined dark raspberry foliage to 12", flower stems to 24"
                                  • Heuchera 'Silver Indiana':  silver and burgundy marbled foliage, white bell-shaped flowers, foliage to 9", stems to 36"
                                  • Heuchera 'Silver Lode':  pink buds open into white flowers, silver-marbled foliage to 12", flower stems 30-36"
                                  • Heuchera 'Stormy Seas':  silver, lavender, pewter and charcoal grey, ruffled foliage to 8", stems to 28"


                                  • For many more forms of Heuchera and the companion plants that suit them best, try some of the links below.

                                  • Coral Bells edgers
                                  • Coral Bells to attract Hummingbirds
                                  • pink-flowered Coral Bells
                                  • purple-foliaged Coral Bells
                                  • red-flowered Coral Bells
                                  • white-flowered Coral Bells
                                  • variegated foliage Coral Bells



                                  • LAMIUM

                                    The groundcover plant, Dead Nettle, always prettier than its common name would suggest, has many forms with silvery accents that shine in shady areas of the garden. Whether the silvering is along the edges, down the centre or covering the leaves, the effect is always handsome.

                                    Lamium maculatum 'Beacon Silver':  4"x12", pink flowers, small silvery-green leaves, tinted purple in fall

                                    Lamium maculatum 'Shell Pink':  green with silver along stem (silvery striped) If you want more choices, use Google Images to view some of the several forms below, then find your own perfect companions for the shady spots where you plant them.

                                  • Lamium maculatum 'Album':  4"x12", white flowers, silver-striped foliage
                                  • Lamium maculatum 'Chequers':  4"x12", rosy-coloured flowers, small leaves, dark green with a silver stripe
                                  • Lamium maculatum 'Pink Chequers':  4"x12", bright pink flowers, silver-striped dark green leaves
                                  • Lamium maculatum 'Red Nancy':  4"x12", true pink flowers, silver foliage
                                  • Lamum 'Rice Creek Gardens':   plum-coloured flowers, silvery foliage


                                  • Rich combination plantings with this perennial and suggestions for its care are suggested at the links below.

                                  • pink-flowered Lamiums
                                  • white-flowered Lamiums
                                  • Lamiums in shade



                                  • LAVANDULA

                                    Lavender has grey-green foliage that shows to best effect when planted together in masses. Try it and see for yourself.

                                    Lavandula angustifolia:  

                                      Lavandula angustifolia
                                      note:  watch for a better image of both the foliage and flowers here in 2007
                                    More attractive forms of lavender can be found at the links below.

                                  • blue Lavender forms
                                  • purple Lavender forms



                                  • LEYMUS

                                    Another warm season Ornamental Grass, Lyme Grass, or wild rye, has a somewhat blue-grey appearance to its foliage. Beware of its invasive nature however and take steps from the start to curb its enthusiastic spread. If you are determined to give this genus a try, some of its forms are listed below. Do your own research to see which might be right for your purposes. The most attractive form is probably the first in the list. Some forms are in the Elymus genus, some in the Leymus genus. My updated information about the forms below is from Rick Darke's Timber Press Pocket Guide to Ornamental Grasses.

                                  • Leymus arenarius 'Glaucus:  Blue Lyme Grass, Zone 4
                                  • Leymus arenarius 'Findhorn':  wild rye, a compact cultivar
                                  • Elymus canadensis:  Canadian wild rye, Zone 3, of little ornamental value
                                  • Leymus condensatus:  Giant wild rye, Zone 7
                                  • Leymus condensatus 'Canyon Prince':  Zone 7
                                  • Elymus glaucus:  Blue wild rye, Zone 5, clump-forming, densely tufted
                                  • Elymus magellanicus:  Blue Wheatgrass, Zone 6, highly ornamental, a clump-former, the most intense blue foliage of all grasses
                                  • Leymus mollis:  Pacific dune grass, Sea Lyme Grass, Zone 4
                                  • Leymus racemosus 'Glaucus':  Giant dune grass, Zone 4


                                  • Find more information by following the link below to our Ornamental Grasses page.

                                  • Lyme Grass Ornamental Grass



                                  • LIMONIUM

                                    Sea Lavender is sometimes called a Baby's Breath look-alike to be used as a "filler" in the garden. Its flowers are produced in airy clusters and are good used as dried flowers as well as in fresh arrangements. With a preference for average to rich, moist, well-drained soil in full sun or part shade this plant is sure to find a suitable home somewhere in your beds. Site the plant well. Moving established plants is difficult but not impossible. To propagate, separate new crowns with roots attached from the outside of plants in spring.

                                    Limonium latifolium:  

                                      watch for a picture of this plant in summer 2007
                                    For more information about this perennial, and ideas for attractive companions, follow the links below.

                                  • Sea Lavender to attract Butterflies
                                  • white-flowered Sea Lavender



                                  • FOR MORE SILVER FOLIAGE PERENNIALS & ORNAMENTAL GRASSES, FOLLOW THE LINKS BELOW.




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                                    SHADE PERENNIALS     Aegopodium - Erythronium  |  Ferns - Polemonium  |  Polygonatum - Vinca new gif


                                    SILVER FOLIAGE PERENNIALS    Achillea - Cerastium   |    Cornus - Limonium    |    Lunaria - Veronica

                                    SIMPLY SPECIAL PERENNIALS    Acanthus - Saxifraga

                                    WHITE PERENNIALS     Achillea - Iris  |  Kalimeris - Yucca

                                    YELLOW PERENNIALS     Achillea - Hypericum  |  Inula - Verbascum

                                    VARIEGATED-FOLIAGE PERENNIALS     Acorus - Erythronium  |  Hakonechloa - Lysimachia  |  Miscanthus - Yucca

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                                    Trollius  |  Veronica 'Sunny Border Blue'

                                    PERENNIALS WITH A DIFFERENCE

                                    Perpixelations  |   Aquilegia

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                                    Hepatica  |   Hypericum kalmianum

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