Ageratina 'Chocolate' Ageratum, Garden (spp.)
Ageratum, Garden 'Bavaria' Ageratum, Garden 'Blue Danube'
Ageratum, Garden 'Blue Horizon' Ageratum, Garden 'Hawaii White'
Ageratum, Garden 'Leilani Blue' Ageratum, Garden 'Purple Fields'
Ageratum, Garden 'Red Sea' Ageratum, Garden 'Shell Pink Hawaii'
Ageratum, Garden 'True Blue' Ageratum, Hardy
Ageratum, Yellow 'Agincourt' Venus' Slipper
'Aglaia' Shasta Daisy Aglaonema
Aglaonema: pictum Agrimony, Hemp
Agrimony: repens Air Pine
Air Pine 'Bert' Airplane Plant
Aizoon Saxifrage Aizoon Stonecrop (spp.)
Aizoon Stonecrop 'Aurantiacum' Alabaster Plant
'Alan Bloom' Tube Clematis Alaska Fringecup (spp.)
Alaska Fringecup 'Rubra' 'Alaska' Nasturtium
'Alaska' Shasta Daisy 'Alba Minor' Horned Violet
Albanian Spurge (spp.) Albanian Spurge 'Portuguese Velvet'
Albardine 'Alba-variegata' Sweet Iris
Albertina Thatching Reed 'Albiflorus' Gas Plant
'Albo Strata' Hakone Grass 'Albovariegata' Little Club Moss
'Albu Marginatai' Bromeliad Albuca
'Alcazar' Common Torch Lily: Kniphofia Alder, Yellow (spp.)
'Alert' New England Aster 'Alexander' Clematis
'Alexander' Garden Loosestrife Algerian Iris
'Alice' Chinese Anemone 'Alida's Pesto' Coral Bells: sanguinea
'Alisha' Florist's Chrysanthemum 'All Gold' Hakone Grass
'All Gold' Lemon Balm Allamanda 'Janelle'
Allamanda 'Leah' 'Allan P. McConnell' Hosta
Alleghany Pachysandra Alleghany, Spurge
Allegheny Monkey Flower 'Allegiance' Daylily
'Allegro' Oriental Poppy 'Allen Chickering' Sage: Salvia
Alluaudia Alluaudia: procera
'Alma Potschke' New England Aster Almond Geranium
Almond Spurge 'Purpurea' Alocasia, Giant (spp.)
Aloe Aloe Yucca (spp.)
Aloe Yucca 'Marginata' Aloe Yucca Variegated
Aloe, American (spp.) Aloe, American 'Medio'
Aloe, American Variegated Aloe, American Variegated
Aloe, American 'White Striped' Aloe, Arabian
Aloe, Barbados Aloe, Blue
Aloe, Bullock's Bottlebrush Aloe, Candelabra (spp.)
Aloe, Candelabra Variegated Aloe, Cape
Aloe, Cat's Tail Aloe, Climbing
Aloe, Coast Aloe, Coral
Aloe, Fan Aloe, Flat Flowered
Aloe, Golden Tooth Aloe, Gold-Spined
Aloe, Ground Spotted Aloe, Hardy
Aloe, Jackal's Tail Aloe, Kokerboom
Aloe, Kralalwyn Aloe, Medicinal
Aloe, Mountain Aloe, Namaqua
Aloe, Nubian (spp.) Aloe, Nubian Variegated
Aloe, Red Spined Blue Aloe, Reitz's
Aloe, Short Leaved (spp.) Aloe, Short Leaved Variegated
Aloe, Snake Aloe, Soap
Aloe, Spiny Aloe, Spiral
Aloe, Stone Aloe, Sunset
Aloe, Tiger Tooth Aloe, Warty
Aloe, Windhoek Aloe, Zebra Leaf
Aloe: bainesii Aloe: buhri
Aloe: camperi Aloe: chabaudii
Aloe: commutata Aloe: deltoideodonta
Aloe: esculenta Aloe: kambensis
Aloe: longibracteata Aloe: marlothii, Mountain
Aloe: mubendiensis Aloe: mutabilis
Aloe: rupestris Aloe: scabinofolia
Aloe: sinkatana Aloe: striata, Coral
Aloe: suprafoliata Aloe: trichosantha
Aloe: vulgaris