Foothill Penstemon 'Blue Bedder' Foothill Penstemon 'Electric Blue'
Foothill Penstemon 'Margarita BOP' Foothill Penstemon 'Platina White'
Foothill Shooting Star Forbes Glory of the Snow
Forest Cabbage Tree 'Electric Pink' Forest Lily (spp.)
Forest Lily 'Rosalba' Forget-Me-Not
Forget-me-not (spp.) Forget-me-not 'Bobo Blue'
Forget-me-not 'Early Bird Blue' Forget-me-not 'Indigo Compacta'
Forget-me-not 'Rosylva' Forget-me-not White
Forget-Me-Not, Creeping (spp.) Forget-Me-Not, Creeping White
Forget-Me-Not, True (spp.) Forget-Me-Not, True 'Pink'
Formosa Lily Formosa Toad Lily 'Amethystina'
Formosa Toad Lily 'Samurai' Fortnight Lily
Fosteriana Tulip 'Zombie' 'Foundling' Daffodil
Fountain Bamboo Fountain Dracaena (spp.)
Fountain Dracaena 'Red Star' Fountain Grass 'Red Buttons'
Fountain Grass (spp.) Fountain Grass 'Hamelin'
Fountain Grass 'Little Bunny' Fountain Grass 'Little Honey'
Fountain Grass 'Moudry' Fountain Grass 'Orientale'
Fountain Grass 'Purpurascens' Fountain Grass 'Weserbergland'
Fountain Grass: setaceum (spp.) Fountain Grass: setaceum 'Giant Purple'
Fountain Grass: setaceum 'Graceful Grasses® Fireworks' Fountain Grass: setaceum 'Graceful Grasses® Rubrum'
Fountain Grass: setaceum 'Purpureum' Fountain Grass: setaceum 'Rubrum'
Four Leaf Sorrel Four O'Clock (spp.)
Fox Nuts Fox Red Curley Sedge
Foxglove Penstemon (spp.) Foxglove Penstemon 'Husker Red'
Foxglove, Chinese Foxglove, Common (spp.)
Foxglove, Common 'Excelsior Hybrids' Foxglove, Common 'Foxy'
Foxglove, Common 'Giant Shirley' Foxglove, Common 'Pam's Choice'
Foxglove, Large Yellow Foxglove, Rusty 'Yellow Herald'
Foxglove, Straw Foxglove, Strawberry
Foxglove, Wild Foxglove, Willow
Foxglove: obscura Fox's Brush (spp.)
Fox's Brush 'Coccineus' Foxtail Agave (spp.)
Foxtail Agave 'Nova' Foxtail Asparagus 'Myers'
Foxtail Asparagus 'Sprengeri' Fox-Tail Barley
Foxtail Lily: robustus Foxtail Lily: stenophyllus
'Foxy' Common Foxglove 'Fragrant Blue' Hosta
'Fragrant Bouquet' Hosta Fragrant Evening Primrose
Fragrant Giant Hyssop 'Golden Jubilee' Fragrant Hosta (spp.)
Fragrant Hosta 'Aphrodite' Fragrant Hosta 'Venus'
Fragrant Iris (spp.) Fragrant Iris 'Alba-variegata'
Fragrant Iris 'Gold Edge' Fragrant Iris Variegated
'Fragrant Sunshine' Wallflower: Erysimum Fragrant Waterlily (spp.)
Fragrant Waterlily 'Sulphurea Grandiflora' 'Francee' Hosta: fortunei
'Frances Grate' Hybrid Geranium 'Frances Williams' Hosta: sieboldiana
'Frans Hals' Daylily 'Frans Hals' Double Daylily
'Franz Schubert' Summer Phlox Freckle Face (spp.)
Freckle Face 'Confetti Red' 'Freckles' Foamflower: Tiarella
'Freckles' Zonal Geranium 'Freddie Boy' Louisiana Iris
'Fredricka' Variegated Bromeliad