The upright stems of Abutilon 'Biltmore Ballgown' are festooned with dangling two-inch orange bells streaked with scarlet throughout summer.

Echinacea 'Lemon Drop' has cheery, bright yellow double cones with reflexed yellow ray florets.

Echinacea 'Yellow Rainbow Marcella' has a red cone with lovely, bicolour yellow and pink ray florets.

Leontopodium alpinum 'Blossom of Snow' has larger, white, star-shaped flowers and can rebloom in the fall.

Scrophularia macrantha has curious, bird-like, bright red, tubular flowers that bloom from early summer to frost.

Geum 'Fire Storm' has bright, tangerine orange, double flowers on compact plants.

Pleione limprichtii produces beautiful fuchsia-pink flowers with red spotted, tubular lips.

Pleione speciosa is one of the easiest and hardiest species to grow with exquisite magenta-pink flowers in spring.

Echinacea Cara Mia 'Yellow' is a double coneflower producing masses of gorgeous, brilliant lemon-yellow blooms.

Echinacea 'Moab Sunset' is a semi-double coneflower producing non-stop blooms in the brightest of oranges and orange reds from summer to frost.

Echinacea Prima Ruby offers a massive wow-factor with single, ruby red blooms with big, bold, central, brown cones.

Lavandula 'Sensational' produces huge, re-blooming, fragrant purple flowers on strong stems with silver foliage.

Convallaria majalis 'Bordeaux' is an improved version of the old-fashioned lily-of-the-valley with larger and more plentiful flowers.

Echinacea Sunseekers 'Apple Green' is a coneflower with semi-double green and white flowers.

Echinacea Sunseekers 'Rainbow' is an amazing coneflower with semi-double salmon pink flowers.

Delphinium New Millennium 'Dusky Maidens' blooms with dense spikes in frilly shades of pink and lavender.

Delphinium New Millennium 'Green Twist' blooms with dense spikes of frilly white flowers with streaks of green.

Miscanthus sinensis 'Gracillimus' has narrow green leaves with a silver midrib which form a substantial, rounded, arching clumps.

Imperata cylindrica 'Red Baron' is one of the most dramatic of grasses with brightly coloured red and green foliage.

Gold Bar' has some of the boldest variegation in Miscanthus sinensis.

Euphorbia polychroma 'Bonfire' is a fiery cushion spurge with foliage that burns with shades of red all season long.

Miscanthus sinensis 'Morning Light' has very narrow green leaves with white marginal variegation giving a silvery appearance.

Hosta 'Fire Island' has brilliant yellow leaves that emerge on red petioles in spring.

Hydrangea macrophylla Kimono is a compact, bigleaf hydrangea with semi-double blooms of wine red and white atop burgundy foliage.

Mahonia repens is a very adaptable, native, woodland ground cover with bright, canary-yellow blooms.

Hosta 'Funny Mouse' has blue-green foliage with white margins and lavender flowers.

Phlox paniculata 'Olympus' is a tall garden phlox with striking variegated foliage and fragrant magenta-pink flowers.

Echinacea Sunseekers 'Red' is an amazing coneflower with bold red, single flowers.

Allium 'In Orbit' is an ornamental onion that forms 3 inch wide drumstick spheres of lavender-purple.

Allium 'Medusa's Hair' is an ornamental onion with snake-like, green foliage and purple flower spheres.

Hemerocallis 'Lies & Lipstick' is a fragrant, re-blooming daylily with creamy-white blossoms and dark pink centres and edges.

Panicum virgatum 'Blood Brothers' is a sport of 'Heavy Metal' with red tipped, blue-green foliage and red to tan seed heads.

Anemone Fantasy 'Snow Angel' is a vigorous, clumping selection with semi-double, pure white flowers.

Geranium pratense 'Boom Chocolatta' is a semi-evergreen, cranesbill with bronze foliage and single purple-blue flowers.

Delphinium New Millennium 'Blue Buccaneers' offers dense spikes of glowing deep blue, single flowers with black centres.

Salvia guaranitica Bodacious 'Hummingbird Falls' is a trailing sage perfect for hanging baskets and hungry hummingbirds.

Iris japonica, known as fringed or crested iris, has white petals decorated with blue and yellow markings atop evergreen foliage.

Polemonium reptans 'Touch of Class' has green and white variegated foliage with pink flower buds that open to light blue, fragrant flowers.

Hydrangea macrophylla Starfield offers superb fully double blue or pink florets in large, textural mopheads.

Asarum splendens is one of the finest wild gingers with arrow-shaped, deep green leaves with silver marbling.

Athyrium niponicum 'Burgundy Lace' is a top notch Japanese painted fern flushed with beautiful purple-pink tones on silver blades.

Ligularia 'Britt-Marie Crawford' forms lush mounds of deepest burgundy-black leaves and deep yellow daisy-like flowers.

Mahonia nervosa has emerald green, windmill-like leaves and canary yellow spring flowers and waxy blue berries.

Geranium x magnificum 'Rosemoor' is a sterile cranesbill with large, single violet-blue flowers and textured foliage.

Veronicastrum virginicum 'Cupid' is a Culver's root with architectural lilac-blue blooms on tall rigid stems.

Alocasia macrorrhizos 'Borneo Giant' is an upright elephant ear with huge, thick, sculpted, glossy blue-green leaves.

Burbidgea scheizocheila is the tender golden brush ginger with a twice-yearly bloom of bright orange.

Carex 'Feather Falls' is a gorgeous striped weeping sedge with narrow variegated foliage and plumes of feathery flowers.

Miscanthus sinensis 'Tiger Tail' is a tall maiden grass with horizontal bands of yellow and bronze late summer flowers.

Geranium maculatum 'Huggy Bear' has bronze foliage and beautiful violet pink flowers.

Echinacea Sunseekers 'Mineola' is a bold coneflower with semi-double orange-tangerine flowers and big brown cones.

Limonium 'Dazzle Rocks' is a hardy sea lavender with purple-violet blooms all summer long above beautiful green foliage.

Polemonium pulcherrimum 'Golden Feathers' is a Jacob's ladder with variegated green and yellow foliage and mauve flowers.

Euphorbia schillingii is a deciduous spurge with long-lasting bright yellow flowers and long green leaves with white stripes.

Echinacea Cara Mia 'Seashell' is a double coneflower producing masses of gorgeous, eye-catching, -pink blooms.

Echinacea 'Fresco Apricot ' has semi-double flowers in apricot tones for a bicolour effect surrounding its large burnt-orange cones.

Echinacea 'Carrot Cake' offers double flowers in various orange shades with a big orange cone and dark orange centre.

Gentiana "Little Pinkie' is a low-growing Summer Gentian with masses of bright pink to purple flowers from late spring to early fall

Hemerocallis 'Tigereye Spider' is a reblooming daylily with large, spider-like petals in bright shades of orange and red.

Ligularia dentata 'Pandora' is a hardy, compact leopard plant with mustard-yellow flowers and contrasting burgundy foliage.

Agastache 'Royal Raspberry' is a long-blooming hummingbird mint with fragrant purple tubular flowers and aromatic foliage.

Agastache Meant to Bee 'Queen Nectarine' has soft peach flowers with mauve calyxes on tall three foot stems.

Campanula lactiflora 'Loddon Anna' is a special form of the milky bellflower with pale pink star-like flowers.

Miscanthus sinensis 'Flamingo' is a distinctive maiden grass with slightly pendant, light pink flower plumes.

Miscanthus sinensis 'Ferner Osten' has dark red and pink plumes and striking bright copper and red fall foliage autumn.

Pennisetum orientale 'Karley Rose' has great dusty rose flowers that lighten to silver through the summer.

Tricyrtis 'Kristen' Ninja Star is a bold and beautiful toad lily with dramatically variegated leaves and lavender pink flowers.

Crocosmia 'Peach Melba' is a montbretia with vivid dark orange flowers atop tall, spiky, sword-like foliage.

Crocosmia 'Sunglow' is a montbretia with brilliant yellow flowers atop tall, spiky, sword-like foliage.

Alstroemeria Inticancha 'Bryce' is a dwarf Peruvian lily that has yellow, orange and red flowers that bloom from summer to fall.

Alstroemeria Inticancha 'Romance' is a dwarf Peruvian lily with pink and white flowers that bloom from summer to fall.

Alstroemeria Inticancha 'Sunstar' is a dwarf Peruvian lily with fuchsia-pink petals, yellow throats, and red speckles.

Geranium pratense 'Cloud Nine' is a cranesbill with fully double, light blue flowers and dark green bushy foliage.

Geranium pratense Dark Eyes is a bold cranesbill with single, dark-eyed magenta flowers and burgundy foliage.

Lavandula Exceptional is a fragrant, white-flowered, reblooming lavender with silver-green foliage.

Amsonia hubrichtii 'Butterscotch' is a blue star with powder-blue flowers and willow-like foliage with bright gold fall colour.

Echinacea Sunseekers 'Pumpkin Pie' is a bold coneflower with semi-double orange flowers and big green cones

Echinacea Sunseekers 'Sweet Fuchsia' is a gorgeous coneflower with semi-double fuchsia-pink flowers and brown cones.

Geum Coral Tempest is a long-blooming avens with multitudes of semi-double, peachy-orange flowers.

Filipendula vulgaris 'Multiplex' or fern-leaf dropwort is an old-fashioned perennial with rose-tinged, white flowers.

Filipendula 'Kahome' is a dwarf meadowsweet with panicles of tiny, fragrant, rosy-pink flowers.

Anemone Puff 'Pink' is a compact Japanese anemone with amazing rosy-pink pompon flowers.

Anemone Satin Doll 'Glow' is a long-blooming, dwarf Japanese anemone with large, mauve-pink flowers.

Echinacea Cara Mia 'Sands' is a double coneflower with masses of gorgeous white flowers with creamy cones.

Echinacea Kismet 'Pink Lemonade' is a single coneflower producing large, bright pink flowers with yellow tips.

Echinacea Prima 'Berry' is a petite coneflower with large flowers with pink petals and dark reddish brown cones.

Echinacea Prima 'Tiger' is a petite coneflower with large, single flowers in autumn shades of orange and red.

Heuchera Dolce 'Spearmint' is a coral bell with reddish pink tubular flowers and silver-green, evergreen foliage.

Gentiana makinoi 'Blue Star' has upright, tubular-shaped violet-blue flowers with yellow stamens and glossy green foliage.

Rhododendron 'Minnetonka' has light purple to pink flowers with yellow-green specks from red-violet flower buds.

Heuchera villosa (syn. macrorhiza) 'Autumn Bride' offers fabulous sizeable plants and impressive foamy spikes.

Kniphofia 'Rocket Jr.' is a non-stop blooming dwarf red hot poker that offers fiery spikes through summer into fall.

Hydrangea serrata Pink Dynamo is a stunner with glowing pink lace cap flowers atop rich burgundy-black foliage.

Hydrangea serrata Tuff Stuff Red is a sturdy, reblooming mountain hydrangea with deep pink and chartreuse lacecaps.

Hydrangea paniculata Dragon Baby is super compact with cones of green and white aging to rich pink.

Hypericum x inodorum Magical Midnight Glow is a shrubby St. John's wort with bright yellow flowers cherry red fruit.

Succisa pratensis, known as blue buttons or devil's-bit scabious, is a perennial wildflower with globular, purple pincushions.

Persicaria bistorta 'Superba' is a common bistort with spikes of soft pink flowers and semi-evergreen foliage.

Phlomis tuberosa 'Bronze Flamingo' is a dramatic Jerusalem Sage with whorled clusters of lavender-pink flowers on dark red stems.

Campanula lactiflora 'White Pouffe' is a special compact form of the milky bellflower with white flowers.

Doodia media (syn. Blechnum medium) is a stunning fern with bright red to pink new fronds that darken to green.

Phlox paniculata 'Jeana' is a standout pollinator magnet with excellent powdery mildew resistance.

The superlative evergreen sedge, Carex Evercolor 'Everillo', emerges lime green, then turns to golden yellow.

Rubus 'Raspberry Shortcake' from the Bushel and Berry line is a thornless, dwarf, container raspberry with lots of sweet red berries.

Bletilla striata 'Alba' is a beautiful white terrestrial ground orchid. Easy to grow.

Geranium 'Azure Rush' is a sport of 'Rozanne' with lighter blue flowers and a more compact habit.

Dicentra spectabilis 'Valentine' is a red form of the classic cottage garden favourite with flowers that are so dark pink they border on true red!

Liriope 'Okina' has striking, frosted white new growth slowly changing to green by summer.

Two tones of dark and light blue make the flowers of Amsonia 'Blue Ice' the best in the genus.

Umbrella plant (Darmera peltata 'Nana') is a great shade perennial that is smaller than the species.

Colocasia 'Mojito' has incredible black-speckled taro/elephant ear leaves. A magnificent focal point for containers or garden.

'Lilac Squirrel' comes from a rare species of Sanguisorba or burnet. It has intriguing, pendulous, lilac-pink bottlebrushes.

'Beauty of Ernst' Color Flash is an Astilbe with an ever-changing foliage display topped with pink flowers in summer.

Athyrium 'Godzilla' is a giant Japanese painted fern growing 3 feet tall by 6 feet wide! Your shade garden will never be the same.

Cirsium rivulare 'Atropurpureum' is a rare perennial with long-blooming, lipstick red, thistle-like flowers.

Clivia miniata is one of the best and easiest of all houseplants with glowing orange flowers and attractive foliage.

Adenophora 'Gaudi Violet' is a beautiful bellflower relative with elegant spikes of light violet bell-shaped flowers.

Euphorbia 'First Blush' has delicate tricoloured slightly ruffled foliage is white and green and blushed with beguiling pink in spring and fall.

Thalictrum 'Black Stockings' is a Meadow Rue with large, flat topped fluffy clusters of lavender flowers on top of tall dark stems.

Lupinus Westcountry 'Manhattan Lights' is a bold and beautiful lupin with warm purple wings and bright yellow banners.

Lupinus Westcountry 'Masterpiece' is a magnificent lupine with rich royal purple buds opening to flowers with warm purple wings and banners, the banners flecked with orange.

Lupinus Westcountry 'Red Rum' is a subtle tricolour with red wings and rose banners with a flush of white.

Agapanthus 'Twister' is a striking bicolour lily-of-the-nile with rich blue and white flowers.

Baptisia 'Lunar Eclipse' is an exciting cultivar with shrub sized plants and lupine-like flowers that age from cream to lavender-blue.

Farfugium 'Wavy Gravy' has distinctively crinkled, grey-green leaves for striking texture in the shade garden.

Lupinus Westcountry 'Blacksmith' is a magnificent lupin with iron grey and white flowers.

Lupinus Westcountry 'Desert Sun' is a magnificent lupin with bright yellow and creamy white flowers.

Persicaria 'Blackfield' has wands of deep red flowers that last for months above bold mounds of lance-shaped, mid green foliage.

Geranium 'Anne Thomson' emerges with bright yellow foliage turning to lime green with small magenta flowers with black veins.

Panicum virgatum 'Niagara Falls' is a dramatic switch grass with arching powder blue foliage and creamy seedheads.

Anemone 'Dainty Swan' is the pink version of 'Wild Swan' with rich, rose pink reverses on large, white flowers all summer long.

Anemone 'Elfin Swan' is the dwarf version of 'Wild Swan' with large, white outward-facing flowers with purple reverses reaching just 14 inches high and blooming all summer.

Heliopsis 'Bleeding Hearts' offers a dramatic colour break emerging in shades of fiery red and orange red.

Dicentra spectabilis 'Cupid' is a baby pink form of the classic bleeding heart.

Iris versicolor 'Purple Flame' has eggplant-purple new foliage in spring followed by purple summer flowers.

Alstroemeria 'Little Miss Zoe' displays red flowers that have a flush of yellow in the throat and lovely variegated leaves.

Lupinus Westcountry 'Rachel de Thame' is a magnificent lupin with bicoloured pink and white flowers.

Lupinus Westcountry 'Tequila Flame' is a magnificent lupin with bicoloured red and yellow flowers.

Dietes vegeta is an iris-like plant with narrow blades of foliage and white flowers accented with yellow and purple.

Astrantia major 'Sparkling Stars Pink' forms clumps of palmate foliage topped with intriguing, bicolour pink and cream flowers.

Rubus idaeus 'Honey Queen' is the hardiest of yellow raspberries and deliciously sweet.

Anemone 'Curtain Call Pink' has rose pink, double flowers with yellow centres on short, compact plants.

Anemone rupicola 'Frilly Knickers' is a Japanese anemone with flowers in white and violet tones around yellow centres.

Iris pseudata 'Yarai' is a has tones of peach with royal-purple veining and a bright yellow signal.

Kniphofia 'High Roller' is a red hot poker with torches of tubular flowers in bi-colours of cream and coral-orange.

Lupinus Westcountry 'Polar Princess' is a lupin with magnificent pure white flowers.

Hibiscus Carousel 'Pink Passion' has huge deep salmony pink flowers with red centres atop purple foliage.

Astrantia major 'Ruby Wedding' is a fabulous boldly coloured masterwort with rich ruby red umbels.

Miscanthus x giganteus is a giant clumping hybrid grass that grows to fourteen feet every year like a columnar fountain of foliage.

Astrantia major 'Hadspen Blood' is a masterwort with rich, deep pinkish red flowers that last for months.

Dryopteris wallichiana Jurassic Gold 'Hollasic' has stunning gold and orange new foliage.

Lupinus 'Terracotta' is magnificent with multi-coloured flowers that begin pink, mature to a rusty-orange, then blush red.

Lupinus Westcountry 'Blossom' is a lupin with baby-pink and white blossoms.

Lupinus Westcountry 'Salmon Star' is a magnificent lupin with shades of pinks and oranges.

Hylomecon japonica is a rare Japanese forest poppy with single, saucer-shaped, bright yellow flowers.

Athyrium niponicum 'Crested Surf' is a Japanese painted fern with lacey, silver-green fronds and red stems with double crested tips.

Geranium Azure Skies is a beautiful cranesbill with unusual blue to lavender-blue double flowers.

Iris foetidissima 'Citrina' is an evergreen, shade tolerant species with pretty pale yellow flowers and bright orange seeds in autumn.

Hibiscus Carousel 'Red Wine' has huge dark red flowers with yellow stamens and deeply lobed purple foliage.

Lamium orvala, balm-leaved red deadnettle, is an upright, shade-loving perennial with pink and purple orchid-like flowers.

Agapanthus Fireworks is a striking lily-of-the-Nile with bicolour flowers of violet blue and white.

Astrantia 'Star of Beauty' forms clumps of dark green foliage topped with branching stems of intriguing, deep pinkish red flowers.

Myosotidium hortensia is an exceedingly rare species in horticulture and in the wild. Known as the Chatham Islands forget-me-not.

Lupinus Westcountry 'Towering Inferno' is a magnificent lupin with shades of pink, apricot, and red.

Astrantia major 'Sparkling Stars Red' forms clumps of palmate foliage topped with intriguing red-maroon and white flowers.

Veronicastrum virginicum 'Challenger' is a Culver's root with architectural pale pink blooms on tall rigid stems.

Monarda Upscale 'Red Velvet' is a tall and large, mildew-resistant beebalm with fragrant red flowers and aromatic foliage.

Pennisetum alopecuroides 'Lemon Squeeze' is a fountain grass with chartreuse-golden foliage and copper seedheads.

Hibiscus Carousel 'Giant Red' has huge bright red flowers with yellow stamens and deeply lobed burgundy foliage.

The Chilean guava, Ugni molinae, has evergreen variegated foliage and tasty ruby red fruit.

Alstroemeria 'Dusty Rose' is a Peruvian lily with unique dusty pink flowers with yellow highlights.

Alstroemeria 'Summer Break' is a cold hardy Peruvian lily with pink petals, white throats and burgundy markings on extra tall stems.

Alstroemeria 'Summer Pepper' is a Peruvian lily with red petals, yellow throats and dark markings on tall stems.

Alstroemeria 'Summer Saint' is a cold-hardy Peruvian lily with pink petals and creamy-yellow throats on tall stems.

Alstroemeria 'Summer Sky' is a cold-hardy Peruvian lily with white petals and yellow throats on tall stems.

Alstroemeria 'Spring Valley' is a cold-hardy Peruvian lily with yellow petals with dark orange highlights.

Begonia brevirimosa 'Exotica' offers metallic-looking, bronze-green leaves with pink veining and pretty pink flowers.

Verbascum 'Plum Smokey' is a compact mullein with large, pinkish-purple flowers and silver-green foliage.

Anthericum liliago known as St. Bernard's lily, produces lily-like, star-shaped white flowers with yellow anthers.

Asclepias viridis is the green milkweed with large clusters of green petals and purple throats.

Sanguisorba 'Blackthorn' is a 2-3 foot tall burnet with long-blooming rosy-pink, bottlebrush flowers.

Sanguisorba 'Strawberry Fost' is a medium sized burnet with long-blooming white and frosted-pink, pipe cleaner-like flowers.

Iris sibirica 'Purring Tiger' is a Siberian iris with elegant yellow falls that are heavily veined in purple with ruffled purple standards.

Iris sibirica 'Ruffled Velvet' has lightly ruffled, purple-blue standards and darker purple falls, golden throats and dark veining.

Iris sibirica 'Sunfisher' is a Siberian iris with lightly ruffled lemon-yellow standards and deeper yellow falls.

Rhododendron 'Bloombux' is a dwarf evergreen shrub with soft pink flowers and glossy green leaves.

Rhododendron 'Capistrano' has large, pastel-yellow flowers with frilly edges and muted, deep green foliage.

Rhododendron 'Cherry Cheesecake' has beautiful white flowers with dark red flecks and lightly ruffled bright pink edges.

Rhododendron 'Landmark' has large trusses of dark pink flowers with red specked throats and dark bronze winter foliage.

Cytisus x boskoopii 'Boskoop Ruby' is a sterile broom with sprays of fragrant, ruby-red, pea-like flowers.

Cytisus x boskoopii 'White Lion' is a sterile broom with sprays of fragrant, pure white, pea-like flowers.

Cytisus x boskoopii 'Zeelandia' is a sterile broom with fragrant pink, peach, yellow, and white, pea-like flowers.

Rhodoendron catawbiense 'Royal Resilience' has glowing lavender-pink flowers and great disease resistance.

Bletilla striata is an easy terrestrial orchid that produces elegant, cattleya-like, pinkish-purple flowers.

Dicentra 'Amore Rose' is a bleeding heart with rose-pink flowers for months over lacy foliage.

Trillium erectum is an awesome red species for the woodland garden.

'Orange Vanilla Popsicle' is a reblooming Kniphofia with two-toned flower spikes of red orange over creamy white.

Kniphofia 'Redhot Popsicle' has lively, cinnamon red flowers on short, compact plants for the smaller garden that bloom for months.

Ligularia 'Garden Confetti' forms big mounds of cream and green foliage liberally sprinkled with lime, pine green and pink.

Jeffersonia diphylla has unique two-lobed leaves and delicate white flowers with yellow centres in spring.

Gelsemium 'Margarita' is a hardy Carolina jessamine with masses of large, bright yellow flowers on a semi-evergreen vine.

Asclepias speciosa is the western North American sister species to the eastern common milkweed (Asclepias syriaca).

Colocasia Thailand Giant is a taro or elephant ear with gigantic foliage. Buy first, worry about where to put it later. ;-)

Mukgenia 'Nova Flame' is an unusual intergeneric hybrid breakthrough between useful Bergenia and the lesser known Mukdenia.

Perovskia 'Denim 'n' Lace' is a dwarf cultivar of Russian sage with silvery foliage and purple-blue flowers.

Trillium grandiflorum is a large-flowered species with petals up to two inches long. It is the floral emblem of Ontario.

The citrus-scented, lemon yellow blooms of Trillium luteum sit on top of the mottled leaves.

Echinacea 'Fiery Meadow Mama' has deep yellow to orange-yellow petals with dramatic red bases all surrounding a red cone.

Musa basjoo, the hardy japanese fibre banana, is reportedly ground hardy to zone 5 (but don't tell anyone in Ontario!).

Comptonia peregrina, commonly known as sweet fern for its fragrant, lustrous, fern-like foliage, is a super hardy shrub for terrible, infertile soils.

Hydrangea paniculata Confetti is a dwarf cultivar with lightly scented, lacy cones of white flowers turning to baby pink.

Brunnera 'Mr Morse' is the white-flowered version of 'Jack Frost' with the same silvered, heart-shaped leaves.

Hemerocallis Golden Zebra is an intriguing daylily with golden flowers and boldly yellow variegated leaves.

Anemone Spring Beauty Pink has fragrant, bubble gum-pink flowers in early spring.

Kniphofia 'Lady Luck' offers torches of flowers on dramatic 5 foot spikes with chartreuse buds that open to white.

Dicentra spectabilis 'Ruby Gold' is the gold-leaved form of 'Valentine' with red hearts dripping from red, arching stems and gold foliage.

Corydalis flexuosa Hillier 'Porcelain Blue' produces clusters of fragrant, glowing blue flowers atop finely textured foliage.

Delphinium Highlander 'Flamenco' is magnificent with ruffled, fully double flowers in shades of dusky, deep raspberry pink.

Delphinium Highlander 'Moonlight' is magnificent with ruffled, fully double flowers in shades of lilac blue with apple-green centres.

Hemerocallis 'Passionate Returns' is an ever-blooming daylily with rosy-red, recurved, ruffled petals and yellow throats.

Penstemon digitalis 'Onyx and Pearls' is a beard tongue with lavender-white flowers and contrasting dark foliage and stems.

Phlox paniculata Luminary 'Opalescence' is a tall garden phlox that has light pink flowers with dark pink eyes and great fragrance.

Camellia sinensis 'Large Leaf' is a tea plant from China that produces abundance of shoots to harvest from.

Kniphofia 'Jade' has greenish white flowers opening from green buds on spikes rising to 3.5 feet high.

Stunning Lysichiton americanum or skunk cabbage has large, golden yellow spathes in early spring and large "tropical", 3 foot foliage.

Echinacea 'Pretty Parasols' is a delicate and beautiful coneflower with single, reflexed petals of white and pink.

Delphinium Highlander 'Cha Cha' is a larkspur with ruffled, fully double flowers in shades of soft lilac-pink with darker eyes.

Delphinium Highlander 'Mystery Sensation' is a larkspur with ruffled, fully double flowers in soft shades of pink with yellow centres.

Delphinium 'Red Lark' is a compact larkspur with fully double flowers in bold coral-red atop lacy green foliage.

Hosta 'Paisley Border' is a plantain lily with wavy, variegated green and white foliage and lavender flowers.

Hibiscus Summerific 'Edge of Night ' is a perennial hibiscus with large, bright pink flowers and burgundy foliage.

Hosta 'Time in a Bottle' is a beautiful plantain lily with wavy yellow foliage and late summer purple   flower buds that do not open.

Kniphofia 'Rocket's Red Glare' is a red hot poker with torches of tubular flowers in bi-colours of bright red and yellow.

Phormium 'Yellow Wave' is a bright and beautiful New Zealand flax with arching, green and gold striped leaves.

Delphinium elatum 'Celebration' is a large larkspur with semi-double soft lemon to cream flowers.

Delphinium elatum 'Princess Caroline' is a mid-sized larkspur with semi-double flowers in salmon-pink with red streaks.

Kniphofia rooperi is a late summer blooming red hot poker with large, orange-red, egg-shaped flowers fading to yellow.

Actaea japonica 'Silver Dance' has wands of creamy-white bottle brush flowers and silver foliage maturing to green.

Hemerocallis 'Born in California' is a premium fragrant daylily with large, highly ruffled flowers in various purple tones.

Hemerocallis 'Vegas Jackpot' is a reblooming daylily with large ruffled flowers in various purple and pink tones.

Buddleja Monarch 'Prince Charming' is a mid-sized, long-blooming butterfly bush with huge cones of fragrant, raspberry-pink flowers.

Campanula glomerata 'Angel Bells' is a clustered bellflower with large clusters of well formed white flowers.

Campanula glomerata 'Church Bells' is a clustered bellflower with large clusters of well formed violet-blue flowers.

Echinacea Double Dipped 'Rainbow Sherbet' is a coneflower with fragrant, large, fully double, orange to pink flowers with broad, horizontal rays.

Hosta 'Echo the Sun' is a plantain lily with heart-shaped, golden yellow leaves that are corrugated with ruffled margins.

Hosta 'Seasons in the Sun' is a plantain lily with heart-shaped, golden yellow, corrugated leaves with wavy margins.

Hosta 'Voices in the Wind' is a plantain lily with wedge-shaped, variegated blue-green leaves with creamy yellow ruffled margins.

Hosta 'Wild Imagination' is a large, strap-leaved plantain lily with narrow, twisted and ruffled blue leaves and lavender flowers.

Kniphofia Pyromania 'Hot and Cold' is a red hot poker with torches of tubular flowers in bi-colours of yellow and orange.

Kniphofia Pyromania 'Solar Flair' is a red hot poker with torches of tubular flowers in brilliant yellow.

Ligularia japonica 'Tractor Seat' is a cold hardy goldenray with huge, heavily serrated and dissected leaves and yellow flowers.

Monarda Upscale 'Lavender Taffeta' is a large, mildew-resistant beebalm with fragrant lavender-purple flowers and aromatic foliage.

Delphinium Highlander 'Bolero' offers ruffly, fully double flowers in shades of lavender purple, blue, and creamy white

Hosta Shadowland 'Above the Clouds' is a large, impressive plantain lily with cloudy blue leaves that are cupped and puckered.

Hosta 'When I Dream' is a large, impressive plantain lily with tricolour variegated leaves.

Hydrangea macrophylla L.A. Dreamin' 'Lindsey Ann' blooms on new and old wood in a range of flower colours all at the same time.

Sedum Sunsparkler 'Dazzling Dynamite' has dramatically variegated leaves in shades of glowing pink, orange, yellow, and purple.

Agapanthus 'Silver Moon' has variegated leaves light lavender-blue flowers in rounded clusters.

Asarum caudatum f. album known as western wild ginger has glossy evergreen leaves and 3-petaled creamy-white flowers.

Sarracenia 'Bug Bat' is a carnivorous pitcher plant with red flowers and hoods atop tall, chartreuse-green pitchers.

Colocasia esculenta 'Waikiki' is a taro or elephant ear with stunning, shiny, variegated foliage with white and pink veins.

Grewia asiatica is a small deciduous shrub known as sherbet berry that produces sour-sweet edible purple berries.

Pandanus amaryllifolus, known as pandan or screw pine, is an evergreen tropical with fragrant leaves used in culinary dishes.

Hydrangea paniculata 'Candle Light' has large conical flower heads in creamy white that slowly age to gorgeous pinks.

Dicentra Amore 'Titanium' is a bleeding heart with pure white flowers for months on end and lacy blue-green foliage.

Artemisia 'Silver Lining' is a mounding white sagebrush with beautiful, broadly dissected, silver-gray foliage.

Echinacea Double Dipped 'Watermelon Sugar' is a coneflower with large, fragrant, fully double, deep pink flowers.

Echinacea Eye-Catcher 'Canary Feathers' is a single coneflower with large, fragrant flowers with yellow horizontal petals.

Echinacea Eye-Catcher 'Tanager' is a single coneflower with large, fragrant, orange flowers with dark cones.

Echinacea Summersong 'Firefinch' is a single coneflower with fragrant, multicoloured red and pink flowers.

Penstemon 'Midnight Masquerade' is a tall beardtongue with very dark foliage and lavender flowers with white interiors.

Hydrangea arborescens 'Candybelle Bubblegum' is a dwarf smooth hydrangea with domed white and pink umbels.

Athyrium niponicum 'Aubergine Lady' is a Japanese painted fern with green fronds maturing to deep purple-black.

Kirengeshoma palmata or Korean waxbells is a stately shade perennial with maple-like leaves and yellow bell flowers.

Agapanthus 'Valencia' offers sky blue flowers with darker veins and reverses on dark stems.

The most beautiful Hydrangea in the world? The gorgeous 'Miss Saori' won Plant of the Year at the 2014 Chelsea Garden Show.

Hydrangea paniculata 'Wim's Red' offers creamy white cones that age to pink then rich, glowing red.

Asphodeline lutea, king's spear or yellow asphodel, has tall, vertical spikesof fragrant, yellow, lily-like flowers.

'Soeur Therese' is a classy mophead hydrangea with icy white florets growing on full size plants to six feet tall.

Aloe polyphylla is a stunning, rare succulent with light green leaves arranged in a mesmerizing spiral.

'Mandela's Gold' (formerly 'Kirstenbosch Gold') is a special form of Strelitzia reginae with yellow flowers.

Actinidia deliciosa 'Jenny' is a self-fertile kiwi that produces fruit just like you find in the supermarket.

A great textural and foliage plant with cute apple green cupped flowers.

Acanthus 'Whitewater' forms vigorous mounds of variegated foliage and pink stems holding white flowers.

'Blue Heron' is a true blue, fragrant Corydalis with finely textured foliage.

Rodgersia 'Chocolate Wing' has rich, chocolate, shimmery, textured, palmate leaves -- amazing in the shade garden.

Alstroemeria 'Indian Summer' has flowers in orange, red, and yellow with luscious bronze-infused foliage. Potentially hardy to zone 5!

Perennial Hibiscus have the largest flowers in the mallow family. 'Midnight Marvel' has bold, burgundy foliage topped with huge, scarlet red flowers in summer and fall.

Convallaria 'Albostriata' is a special form of lily-of-the-valley with green leaves striped with yellow.

Kirengeshoma palmata 'Black Style' is a Korean waxbells with black stems that hold up the creamy yellow flowers.

Amsonia 'Storm Cloud' displays star-like periwinkle blue flowers above silver veined foliage on dramatic near-black stems.

Wasabia japonica is the true wasabi, not the fake stuff served in most Japanese restaurants. 'Daruma' has great vigour and flavour.

Wasabia japonica is the true wasabi, not the fake stuff served in Japanese restaurants. 'Mazuma' has great vigour and more heat.

Aruncus 'Chantilly Lace' produces lacy, branched, horizontal spikes of creamy white flowers atop Astilbe-like foliage.

Hibiscus 'Starry Starry Night' has wine purple, maple-like foliage and pink buds opening to 8-9 inch wide, pale pink flowers.

Hosta 'Sorbet' has beautifully variegated leaves and striking deep burgundy petioles, leaf bases, and flower stalks.

Rodgersia aesculifolia 'Cherry Blush' has large, palmate leaves flushed bronze and bright pink flowers.

Hemerocallis 'Voodoo Dancer' is a fragrant, reblooming daylily with double, burgundy-black flowers.

Iris pseudata 'Shiryukyo' is a tall cultivar to four feet with violet and purple tones and veining set off with a bright yellow signal.

'Dark Side of the Moon' is a unique Astilbe with dark foliage and purple flowers that bloom in late summer.