Plant WitchPlants: F
- Fairy Duster Calliandra eriophylla Flowering shrub
- Fairy Primrose Primula malacoides Garden perennial
- False Aster Boltonia asteroides Garden perennial
- False Indigo Bush Amorpha fruticosa Flowering shrub
- False Lily Of The Valley Maianthemum canadense Creeping perennial
- Fan Columbine Aquilegia flabellata Wildflower
- Fan Flower Scaevola aemula
- Farewell to Spring Clarkia amoena Wildflower
- Father Hugo's Rose Rosa xanthina Flowering shrub
- Fava Bean Vicia faba Legume
- Feather Dalea Dalea formosa
- Fendler's Ceanothus Ceanothus fendleri Flowering shrub
- Fennel Foeniculum vulgare Herb
- Fenugreek Trigonella foenum-graecum Herb
- Fernleaf Biscuitroot Lomatium dissectum Wildflower
- Fernleaf Peony Paeonia tenuifolia Garden perennial
- Fernleaf Phacelia Phacelia bipinnatifida Wildflower
- Fernleaf Yarrow Achillea filipendulina Garden perennial
- Fetterbush Lyonia lucida Flowering shrub
- Feverfew Tanacetum parthenium Garden perennial
- Fewflower Milkweed Asclepias lanceolata Wildflower
- Field Pussytoes Antennaria neglecta Creeping perennial
- Field Thistle Cirsium discolor Wildflower
- Fig Ficus carica Tree fruit
- Fig-Leaved Hollyhock Alcea ficifolia
- Finger Lime Citrus australasica Tree fruit
- Fire Pink Silene virginica Wildflower
- Firebush Hamelia patens Flowering shrub
- Firecracker Bush Bouvardia ternifolia Flowering shrub
- Firecracker Flower Crossandra infundibuliformis Flowering shrub
- Firecracker Penstemon Penstemon eatonii Wildflower
- Firecracker Plant Russelia equisetiformis Flowering shrub
- Firespike Odontonema cuspidatum
- Fireweed Chamerion angustifolium Wildflower
- Five Spot Nemophila maculata Garden annual
- Flame Acanthus Anisacanthus quadrifidus var. wrightii Flowering shrub
- Flame Azalea Rhododendron calendulaceum Flowering shrub
- Flame Vine Pyrostegia venusta Vine
- Flamingo Flower Justicia carnea Garden perennial
- Flannel Bush Fremontodendron californicum Flowering shrub
- Flat Sea Holly Eryngium planum Garden perennial
- Flat-Topped Aster Doellingeria umbellata
- Flatwoods Plum Prunus umbellata Tree fruit
- Flax Linum usitatissimum Grain
- Florida Flame Azalea Rhododendron austrinum Flowering shrub
- Florida Pearl Junebearing Strawberry Fragaria x ananassa Berry
- Floss Flower Ageratum houstonianum Garden annual
- Flowering Almond Prunus triloba Flowering shrub
- Flowering Dogwood Cornus florida Flowering tree
- Flowering Maple Abutilon × hybridum Flowering shrub
- Flowering Quince Chaenomeles speciosa Flowering shrub
- Flowering Tobacco Nicotiana alata Wildflower
- Foamflower Tiarella cordifolia Creeping perennial
- Foothill Palo Verde Parkinsonia microphylla Flowering tree
- Foothill Penstemon Penstemon heterophyllus Garden perennial
- Foothill Sedge Carex tumulicola Grass sedge
- Forget-Me-Not Myosotis sylvatica Garden perennial
- Formosa Lily Lilium formosanum Garden perennial
- Formosa Toad Lily Tricyrtis formosana Garden perennial
- Fortnight Lily Dietes iridioides Wildflower
- Fortune's Rhododendron Rhododendron fortunei Flowering shrub
- Fosteriana Tulip Tulipa fosteriana Garden perennial
- Fountain Butterfly Bush Buddleja alternifolia Flowering shrub
- Four O'Clock Mirabilis jalapa Garden perennial
- Four-Nerve Daisy Tetraneuris scaposa Wildflower
- Fox Sedge Carex vulpinoidea Grass sedge
- Foxglove Digitalis purpurea Wildflower
- Foxglove Beardtongue Penstemon digitalis Wildflower
- Foxtail Lily Eremurus stenophyllus Garden perennial
- Foxtail Millet Setaria italica Grain
- Fragrant Hosta Hosta plantaginea Creeping perennial
- Fragrant Sumac Rhus aromatica Low shrub
- Fragrant Water Lily Nymphaea odorata Wildflower
- Frangipani Plumeria rubra Flowering tree
- Franklin Tree Franklinia alatamaha Flowering tree
- Freesia Freesia × hybrida
- Fremont Cottonwood Populus fremontii Flowering tree
- Fremont's Leather Flower Clematis fremontii Wildflower
- French Lavender Lavandula dentata
- French Marigold Tagetes patula Garden annual
- French Rose Rosa gallica Garden perennial
- Frikart's Aster Aster × frikartii Garden perennial
- Fringe Tree Chionanthus virginicus Flowering tree
- Fringecup Tellima grandiflora Creeping perennial
- Fringed Bleeding Heart Dicentra eximia Garden perennial
- Fringed Bluestar Amsonia ciliata Garden perennial
- Fringed Hibiscus Hibiscus schizopetalus Flowering shrub
- Fringed Poppy Mallow Callirhoe digitata Garden perennial
- Fringed Redmaids Calandrinia ciliata Wildflower
- Fringed Sage Artemisia frigida Creeping perennial
- Frogfruit Phyla nodiflora Creeping perennial
- Frohnleiten Barrenwort Epimedium × perralchicum Creeping perennial
- Front Range Penstemon Penstemon virens Wildflower
- Frosted Mint Poliomintha incana Wildflower
- Frostweed Verbesina virginica Wildflower
- Fuchsia-Flowered Gooseberry Ribes speciosum Flowering shrub
- Fuzzy Deutzia Deutzia scabra Flowering shrub
- Fuzzytongue Penstemon Penstemon eriantherus Wildflower