	Acanthus mollis Tall spikes of showy mauve bracts revealing white flowers.

	Achillea 'Moonshine' Profusely blooming plants with aromatic foliage. Flat clusters of lemon-yellow flowers.

	Achillea 'Pretty Belinda' Strongly colored pink flowers. Plants have a more compact habit and stay upright.

	Achillea millefolium 'Marie Ann' Profusely blooming plants with aromatic foliage. Flat clusters of pale lemon-yellow flowers. Dwarf cultivar.

	Achillea millefolium 'Paprika' Profusely blooming plants with aromatic foliage. Flat clusters of dark cherry-red flowers with yellow centers.

	Achillea millefolium 'Red Velvet' Dark-red flowers that don't fade. Very floriferous and very good re-bloomer after being cut back. One of the best reds.

	Achillea millefolium 'Terracotta' Profusely blooming plants with aromatic foliage. Clusters of orange flowers that fade through shades of yellow.

	Aconitum carmichaelii 'Arendsii' Sturdy upright plants with spikes of large hooded blue flowers. Very good for cutting. One of the best aconitums.

	Aconitum carmichaelii 'Pink Sensation' Sturdy upright plants with spikes of hooded pale-pink flowers. EU 6335 PP 12,661 PBR.AF PPAF

	Aconitum fischeri Shorter plant with spikes of large purple-blue hooded flowers.

	Aconitum napellus Vigorous, robust plants with long spikes of hooded blue flowers and very finely divided foliage.

	Aconitum x cammarum 'Bicolor' Strong upright plants with branching spikes of hooded white flowers with a good blue edge.

	Aconitum x cammarum 'Bressingham Spire' Strong upright plants with branching spikes of hooded dark violet-blue flowers. Compact.

	Aconitum x cammarum 'Eleanora' Strong upright plants with branching spikes of hooded off-white flowers with a very narrow blue edge.

	Aconitum x cammarum 'Stainless Steel' Strong upright plants with loosely-branching spikes of hooded steel-blue flowers.

	Agapanthus 'Back in Black' Jet black stems with dark purple-blue flowers which open from near black buds. Attractive black seed pods after flowering. Gives plenty of flowering stems. Bright green foliage makes a sharp contrast with the stems. EU PBR PP 16,244

	Agapanthus 'Headborne hybrids Large, rounded umbels of funneled blue flowers. Thick, strap-shaped foliage. Hardier than other Agapanthus.

	Agastache 'Black Adder' Smokey lilac flowers opening from dark-purple buds, giving a good color contrast. Blooms till frost.

	Agastache 'Blue Fortune' Smokey violet-blue flowers. Long-blooming variety with good tolerance for heat, drought and diseases.

	Agastache 'Red Fortune' Carmine-red flowers. EU 6364 PP 11,816 PBR.AF PPAF

	Ajuga reptans 'Black Scallop' Glossy, very dark-burgundy foliage with scalloped edges. Deep-blue flowers. EU PBR PP 15,815 CAN 15815

	Alchemilla mollis Citrus-yellow flowers over a cushion-like bush of rounded, gray-green woolly-textured foliage.

	Anchusa azurea 'Loddon Royalist' Tall bushy plant with royal-blue buttercup-like flowers.

	Anemone 'Andrea Atkinson' Single, pure white flowers. One of the most vigorous cultivars.

	Anemone 'Honorine Jobert' Single pure-white flowers. Very floriferous.

	Anemone 'Konigin Charlotte' Large, semi-double, mid pink flowers.

	Anemone 'Max Vogel' Semi-double pearl-pink flowers. One of the most vigorous cultivars.

	Anemone 'Pamina' Semi-double lavender-rose flowers.

	Anemone 'Serenade' Double, dark pink flowers. One of the most vigorous cultivars. Produces excellent cuts.

	Anemone 'Whirlwind' Semi-double snow-white flowers with soft ruffled edges.

	Anemone crispa Large, ruffled, crispate foliage which is very decorative even before the flowers appear. Single pink flowers.

	Anemone hupehensis 'Praecox' Single dark-pink flowers on lower-growing plants. Earlier bloomer.

	Anemone hupehensis 'Prinz Heinrich' Semi-double mauve flowers on lower-growing plants.

	Anemone hupehensis 'September Charm' Large, single rose-pink flowers.

	Anemone leveillei Early-blooming species bearing many smallish, single white flowers, flushed blue on the reverse. Plants have a sturdy, compact, branching habit. Good both in the border and for naturalizing.

	Anemone sylvestris 'Elise Feldman' Very unusual Dahlia-like double white flowers with a greenish tinge. Compact plants. Early blooming and re-blooms in fall. US PPAF

	Anemone tomentosa 'Robustissima' Single china-pink flowers. Hardy, vigorous and very floriferous.

	Aquilegia 'McKana's Giant' Mix of huge (up to 3"), vibrant, bi-color flowers with long spurs and a very flared shape.

	Aquilegia vulgaris 'Black Barlow' Fully double Dahlia-like near-black flowers.

	Aquilegia vulgaris 'Blue Barlow' Fully double Dahlia-like violet-blue flowers.

	Arrhenatherum bulbosum 'Variegatum' Brightly variegated blue-green blades with white edges. Purple-green flowers.

	Aruncus dioicus Fine feathery plume-shaped panicles of cream-colored flowers. Astilbe-like foliage.

	Aruncus dioicus 'Kneiffii' Fine feathery plume-shaped panicles of cream-colored flowers. Very delicately-cut foliage.

	Aster (Dumosus hybr.) 'Purple Dome' Violet purple flowers.

	Aster novi-belgii 'Woods Blue' Clear light-blue flowers. Compact. Very healthy plants with good resistance to mildew and rust. US PPAF

	Aster novi-belgii 'Woods Pink' Clear light-pink flowers. Compact. Very healthy plants with good resistance to mildew and rust. US PPAF

	Aster novi-belgii 'Woods Purple' Clear light-purple flowers. Compact. Very healthy plants with good resistance to mildew and rust. US PPAF

	Astilbe 'Alive and Kicking' Dark rose-pink flowers. Robust, fast-growing plants with strong stems due to chinensis crossing.

	Astilbe 'Heart and Soul' Full and fluffy light-pink flowers with a lavender-blue sheen most visible when the sun is low at the start and end of the day. Dark-green foliage. Strong-growing, robust plants with good sun tolerance due to chinensis crossing. 26"/65cm tall in first yea

	Astilbe 'Stand and Deliver' Large, full, bright-pink plumes. Dark-green foliage has curling, toothed edges. EU PBR US PPAF

	Astilbe (Arendsii hybr.) 'Brautschleier' White flowers in loosely clustered plumes. This profuse bloomer is one of the best whites.

	Astilbe (Arendsii hybr.) 'Burgundy Red' Long-lasting deep-red flowers - very good color. Glossy deep-green foliage. Grows fast and flowers early. The best grower for its color. RHS Award of Garden Merit.

	Astilbe (Arendsii hybr.) 'Cattleya' Rose-pink flowers in tall, loosely-branched plumes. Dark stems and foliage.

	Astilbe (Arendsii hybr.) 'Darwin's Dream' Deep-pink flowers in dense plumes. Excellent compact plants with shiny, dark-green foliage. Produces many flowers. Looks really good in a pot. EU PBR US PPAF

	Astilbe (Arendsii hybr.) 'Fanal' Very dark maroon-red flowers. Sport of 'Gertrud Brix'.

	Astilbe (Arendsii hybr.) 'Federsee' Dark carmine rose flowers. Profuse bloomer.

	Astilbe (Arendsii hybr.) 'Flamingo' EUBR 7360. Flamingo-pink flowers in long, arching plumes. EU 7360 PP 12,664 CAN 1441 PPAF

	Astilbe (Arendsii hybr.) 'Sister Theresa' Short, densely-fluffed pale-pink plumes. Early foliage is dark-green while later foliage is lighter. Very vigorous.

	Astilbe (Arendsii hybr.) 'Snowdrift' White flowers.

	Astilbe (Arendsii hybr.) 'Spinell' Carmine-red flowers.

	Astilbe (Arendsii hybr.) 'Weisse Gloria' White flowers in thick, dense plumes. Profuse bloomer.

	Astilbe (Crispa hybr.) 'Perkeo' Dark rose-pink flowers. RHS award winner. Very compact plants with frilly-edged foliage.

	Astilbe (Japonica hybr.) 'Bremen' Full, dark-pink plumes. Profuse bloomer. Excellent for forcing.

	Astilbe (Japonica hybr.) 'Deutschland' Cream-white flowers.

	Astilbe (Japonica hybr.) 'Ellie' Very full and large pure-white plumes that fade to green rather than brown, making it the best white variety.

	Astilbe (Japonica hybr.) 'Lollypop' Pink flowers with a white sheen in dense plumes on red stems. PP 11,966 CAN 1442 PPAF

	Astilbe (Japonica hybr.) 'Montgomery' Dark-red flowers in dense plumes. Sport of A. 'Dusseldorf'.

	Astilbe (Japonica hybr.) 'Peach Blossom' Pale salmon-pink flowers.

	Astilbe (Japonica hybr.) 'Red Sentinel' Full, intense-red plumes. Sport of A. 'Koblenz'

	Astilbe (Japonica hybr.) 'Rheinland' Pink flowers. Profuse bloomer.

	Astilbe (Simplicifolia hybr.) 'Darwin's Snowsprite White flowers in loose plumes over dark foliage.

	Astilbe (Simplicifolia hybr.) 'Hennie Graafland' Pale-rose flowers in loose plumes over dark-green foliage. Produces very uniform pots. Very good plants.

	Astilbe (Simplicifolia hybr.) 'Pink Lightning' Light-pink flowers in airy plumes. Very dark foliage. EU 11596 PP 11,963 CAN 1443 PPAF

	Astilbe (Simplicifolia hybr.) 'Sprite' Pale-rose flowers and bronze-green foliage.

	Astilbe (Thunbergii hybr.) 'Straussenfeder' Deep dusty-rose flowers in long, drooping plumes. Sport of 'Betsy Cuperus'.

	Astilbe chinensis 'Diamonds and Pearls' Silver-white flowers and dark-green foliage. The first chinensis species Astilbe with white flowers. EU PBR US PPAF

	Astilbe chinensis 'Love and Pride' Strong purple-pink flowers. Attractive young foliage is bright green with bronze tinges. Strong, vigorous grower. EU PBR US PPAF