Aglaonema commutatum Aglaonema modestum
Aglaonema nitidum Aglaonema nitidum 'Emerald Beauty'
Aglaonema nitidum 'Emerald Star' Aglaonema nitidum 'Green Lady'
Aglaonema nitidum 'Mary Ann' Aglaonema nitidum 'Queen of Siam'
Aglaonema nitidum 'Rhapsody in Green' Aglaonema nitidum 'Silver Bay'
Aglaonema nitidum 'Silver King' Aglaonema nitidum 'Silver Queen'
Aglaonema pictum Aglaonema romana
Agonis flexuosa Agonis flexuosa 'Belbra Gold'
Agonis flexuosa 'Nana' Agrimonia repens
Agrostemma githago Agrostis x 'Pennlinks'
Ailanthus altissima Aiphanes caryotifolia
Ajania pacifica Ajania pacifica 'Gold & Silver'
Ajania pacifica 'Pink Ice' Ajania pacifica 'Yellow Splash'
Ajuga 'Gaiety' Ajuga 'Royalty'
Ajuga 'Tropic King' Ajuga australis
Ajuga genevensis Ajuga pallisandra
Ajuga pyramidalis 'Metallica Crispa' Ajuga reptans
Ajuga reptans 'Alba' Ajuga reptans 'Atropurpurea'
Ajuga reptans 'Binblasca (Black Scallop)' Ajuga reptans 'Bronze Beauty'
Ajuga reptans 'Burgundy Glow' Ajuga reptans 'Catlin's Giant'
Ajuga reptans 'Chocolate Chip' Ajuga reptans 'Crispa'
Ajuga reptans 'Jungle Beauty' Ajuga reptans 'Metallica'
Ajuga reptans 'Pink Surprise' Ajuga reptans 'Purple Torch'
Ajuga reptans 'Purpurea' Ajuga reptans 'Renick'
Ajuga reptans 'Rosea' Ajuga reptans 'Silver Beauty'
Ajuga reptans 'Silver Queen' Akebia quinata
Akebia trifoliata Albizia julibrissin
Albizia julibrissin 'Pendula' Albizia julibrissin 'Rosea'
Albizia julibrissin 'Summer Chocolate' Albizia lebbeck
Albizia saman Albizia sinaloensis
Albuca canadensis Albuca spiralis
Alcantarea imperialis Alcea x 'Summer Memories'
Alcea ficifolia Alcea rosea
Alcea rosea 'Chater's Double' Alcea rosea 'Creme de Cassis'
Alcea rosea 'Indian Spring' Alcea rosea 'Nigra'
Alcea rosea 'Peaches 'n' Dreams' Alcea rosea 'Powder Puff'
Alcea rosea 'Queeny Purple' Alcea rosea 'Summer Carnival'
Alcea rosea 'The Watchman' Alcea rugosa
Alchemilla alpina Alchemilla conjuncta
Alchemilla erythropoda Alchemilla mollis
Alchemilla mollis 'Thriller' Alchemilla xanthochlora
Aleurites fordii Aleurites moluccana
Alisma plantago-aquatica Allamanda blanchetii
Allamanda bolivinensis Allamanda cathartica
Allamanda cathartica 'Cherries Jubilee' Allamanda cathartica 'Chocolate Cherry'
Allamanda cathartica 'Florepleno' Allamanda cathartica 'Hendersonii'
Allamanda schottii Alliaria petiolata