Anthurium x 'Lady Jane' Anthurium andraeanum
Anthurium andraeanum 'Kozuhara' Anthurium x ferrierense
Anthurium jenmannii Anthurium scherzerianum
Anthurium superbum Anthyllis vulneraria ssp. coccinea
Apium graveolens var. rapaceum Aponogeton distachyos
Aptenia cordifolia Aptenia cordifolia 'Red Apple'
Aquilegia 'Spring Magic®' Aquilegia 'Towering Light Blue'
Aquilegia alpina Aquilegia caerulea
Aquilegia caerulea 'Red Hobbit' Aquilegia canadensis
Aquilegia canadensis 'Corbett' Aquilegia chrysantha
Aquilegia chrysantha var. hinckleyana Aquilegia flabellata
Aquilegia flabellata 'Alba' Aquilegia flabellata 'Cameo Mix'
Aquilegia flabellata 'Cameo Pink-White' Aquilegia flabellata 'Nana'
Aquilegia formosa Aquilegia x hybrida
Aquilegia x hybrida 'Blue Shades' Aquilegia x hybrida 'Crimson Star'
Aquilegia x hybrida 'Dorothy Rose' Aquilegia x hybrida 'Dragon Fly Mix'
Aquilegia x hybrida 'Heidi' Aquilegia x hybrida 'McKana's Giant'
Aquilegia x hybrida 'Ministar' Aquilegia x hybrida 'Musfe'
Aquilegia x hybrida 'Music' Aquilegia x hybrida 'Nora Barlow'
Aquilegia x hybrida 'Nora Barlow Mix' Aquilegia x hybrida 'Origami Blue and White'
Aquilegia x hybrida 'Robin (Songbird Series)(n)' Aquilegia sibirica 'Biedermeier'
Aquilegia triternata Aquilegia vulgaris
Aquilegia vulgaris 'Black Barlow' Aquilegia vulgaris 'Grandmother's Garden'
Aquilegia vulgaris 'Tower Light Pink' Aquilegia vulgaris 'Winkie'
Aquilegia vulgaris 'Winky Blue-White' Aquilegia vulgaris 'Winky Purple-White'
Aquilegia vulgaris 'Winky Red-White' Aquilegia vulgaris 'Winky Rose-Rose'
Arabis blepharophylla 'Spring Charm' Arabis caucasica
Arabis caucasica 'Snowcap' Arabis caucasica 'Variegata'
Arabis ferdinandi-coburgi 'Old Gold' Arabis ferdinandi-coburgi 'Variegata'
Arabis sturii Arabis sturii 'Skyrocket'
Aralia cordata 'Sun King' Arctotheca calendula
Arctotis acaulis Arctotis x hybrida
Arctotis x hybrida 'Sunset Gold' Arenaria montana
Arenaria tmolea Argyranthemum 'Sunlite'
Argyranthemum foeniculaceum Argyranthemum foeniculaceum 'Jamaican Primrose'
Argyranthemum frutescens Argyranthemum frutescens 'Argymip (Molimba® Pink)'
Argyranthemum frutescens 'Vanilla Butterfly®' Argyranthemum x hybrida 'Comet White'
Argyranthemum vera Argyreia nervosa
Arisaema ringens Arisaema sikokianum
Arisaema triphyllum Aristea ecklonii
Aristolochia chilensis Aristolochia gigantea
Aristolochia macrophylla Armeria 'Apple Blossom'
Armeria 'Dusseldorf Pride' Armeria 'Juncea'
Armeria 'Victor Reiter' Armeria girardii
Armeria leucocephala 'Corsica' Armeria maritima
Armeria maritima 'Bloodstone' Armeria maritima 'Cotton Tail'
Armeria maritima 'Pink Lusitanica' Armeria maritima 'Rubrifolia'
Armeria maritima 'Sea Thrift' Armeria maritima 'Splendens'
Armeria pseudarmeria 'Joystick Lilac' Armeria pseudarmeria 'Joystick Red'
Armoracia rusticanna 'Variegata' Arnica chamissonis