Index of plants: Garden plants and flowers - T
Plants are organised by their common names in the flowers T table. The scientific name is also given.
| Tahoka daisy - Machaeranthera | Tampala - Amaranthus | |
| Tara vine - Actinidia | Tarragon - Artemisia | |
| Tartar lily - Ixiolirion | Tassel flower - Amaranthus, Emilia | |
| Tassel hyacinth - Muscari | Tatterwort - Sanguinaria | |
| Teasel - Dipsacus | Ten weeks stock - Matthiola | |
| Texas bluebonnet - Lupinus | Texas pride - Phlox | |
| Texas star - Xanthisma | Thimble flower - Gilia | |
| Throughwort - Eupatorium | Three birds flying - Linaria | |
| Thrift - Armeria | Throatwort - Trachelium | |
| Thyme - thymus | Tickseed - Coreopsis | |
| Tidy tips - layia | Toadflax - Linaria | |
| Toad lily - Tricyrtis | Toad lily - fritillaria , tricyrtis | |
| Tobacco - Nicotiana | ||
| Toper's plant - Sanguisorba | Torch lily - Kniphofia | |
| Touch-me-not - Impatiens | ||
| Townsendia | Trailing arbutus - Epigaea | |
| Transvaal daisy - Gerbera | Treasure flower - Gazania | |
| Tree Mallow - Lavatera | Trillium - Wakerobin | |
| Trinity Flower - Tradesscantia | Trout lily - Erythronium | |
| Trumpet Flower - Datura | Trumpet Leaf - Sarracenia | |
| Trumpet Plant - Incarvillea | Tulip poppy - Papaver | |
| Tuberose - Polianthes | Tufted pansy - Viola | |
| Tulip - Tulipa | Turkeybeard - Xerophyllum | |
| Turtle head - Chelone | Tunic Flower - Tunica | |
| Twin Flower - Linnaea | Twinleaf - jeffersonia | |
| Twinspur | ||
Index of Garden plants and flowers: U
| Umbrella grass - Cyperus | Unicorn plant - Martynia |
Index of Garden Plants and Flowers: V
| Valerian - Centranthus | Valerian - valeriana | |
| Velthemia | Vervain - Verbana | |
| Violet cress - Ionopsidium | Violet - Viola | |
| Viper's bugloss - Echium | Virginia bluebells - Virginia Cowslip - Mertensis | |
| Virginia Stock - Malcomia |