Delphinium x belladonna Delphinium x belladonna 'Bellamosum'
Delphinium x cultorum 'Centurion Sky Blue' Delphinium elatum
Delphinium elatum 'Black Knight' Delphinium elatum 'Blue Bird'
Delphinium elatum 'Blushing Brides' Delphinium elatum 'Galahad'
Delphinium elatum 'Innocence' Delphinium elatum 'King Arthur'
Delphinium elatum 'Magic Fountains' Delphinium elatum 'New Millennium Mix'
Delphinium elatum 'Royal Aspirations' Delphinium grandiflorum 'Blue Butterfly'
Delphinium grandiflorum 'Connecticut Yankee' Delphinium grandiflorum 'Pennant'
Delphinium nudicaule 'Laurin' Delphinium virescens
Dicentra spectabilis Dicentra spectabilis 'Alba'
Diervilla sessilifolia 'Butterfly' Dimocarpus longan
Diospyros texana Diospyros virginiana
Dipsacus fullonum Dulichium arundinaceum
Echeveria simulans Echinacea 'Evan Saul (Sundown™)'
Echinacea paradoxa Echinacea purpurea
Echinacea purpurea 'Bright Star' Echinacea purpurea 'Double Decker'
Echinacea purpurea 'Kim's Knee High' Echinacea purpurea 'Kim's Mophead'
Echinacea purpurea 'Magnus' Echinacea purpurea 'Rubinstern (Ruby Star)'
Echinacea purpurea 'White King' Echinacea purpurea 'White Swan'
Echinacea tennesseensis Epilobium canum ssp. canum
Epilobium canum ssp. canum 'Cloverdale' Epilobium canum ssp. latifolium
Erythrina lysistemon Eucalyptus kruseana
Eugenia foetida Eugenia rhombea
Eugenia spp. Eugenia uniflora
Euonymus japonicus Euonymus japonicus 'Aureo-marginatus'
Euonymus japonicus 'Microphyllus' Euonymus japonicus 'Silver King'
Eupatorium purpureum Eupatorium purpureum 'Gateway'
Eurybia divaricata Exothea paniculata
Fagus grandifolia Fagus sylvatica 'Purpurea Pendula'
Fatsia japonica Ferocactus chrysacanthus
Ferocactus cylindraceus Ferocactus emoryi
Ferocactus gracilis Ferocactus histrix
Ferocactus latispinus var. spiralis Ferocactus peninsulae
Ferocactus pilosus Ferocactus robustus
Ferocactus viridescens Ferocactus wislizeni
Festuca rubra 'Penn Lawn' Ficus benjamina
Ficus carica Ficus pumila
Foeniculum vulgare Foeniculum vulgare 'Bronze'
Foeniculum vulgare 'Purpureum' Forestiera pubescens
Forestiera segregata Fouquieria diguetii
Fouquieria leonilae Fouquieria macdougalii
Fouquieria purpusii Fragaria ovalis
Fragaria vesca Fragaria vesca 'Improved Rugen'
Fragaria vesca ssp. californica Frangula californicus
Frangula californicus 'Seaview Improved' Fraxinus americana
Fraxinus americana 'Champaign County' Fraxinus americana 'Tures (Windy City™)'
Fraxinus caroliniana Fraxinus pennsylvanica
Fraxinus pennsylvanica var. subintegerrima Fraxinus quadrangulata