| Add to Export List | Image | Common Name | Scientific Name | Cultivar/Variety | Plant Type |
|---|---|---|---|---|---|
| Add To List Remove From List | Thornless Cockspur Hawthorn | Crataegus crus-galli var. inermis | Deciduous tree | ||
| Add To List Remove From List | Thornless Honey locust | Gleditsia triacanthos inermis | Deciduous tree | ||
| Add To List Remove From List | Thornless Japanese Barberry | Berberis thunbergii | 'Thornless' | Deciduous shrub | |
| Add To List Remove From List | Threadleaf Falsecypress | Chamaecyparis pisifera filifera | Evergreen shrub | ||
| Add To List Remove From List | Threadleaf Tickseed | Coreopsis rosea | Hardy perennial | ||
| Add To List Remove From List | Three Flowered Maple | Acer triflorum | Deciduous tree | ||
| Add To List Remove From List | Three-leaved coneflower | Rudbeckia triloba | Hardy perennial | ||
| Add To List Remove From List | Thriller Lady's Mantle | Alchemilla mollis | 'Thriller' | Hardy perennial | |
| Add To List Remove From List | Thumbelina® Lilac - Shrub | Syringa | 'Baillina' | Deciduous shrub | |
| Add To List Remove From List | Thunberg Spirea | Spiraea thunbergii | Deciduous shrub | ||
| Add To List Remove From List | Thunderbolt Hosta | Hosta | 'Thunderbolt' | Hardy perennial | |
| Add To List Remove From List | Tiger Eyes® Cutleaf Staghorn Sumac | Rhus hirta | 'Bailtiger' | Deciduous shrub | |
| Add To List Remove From List | Tiger Lily | Lilium lancifolium | Hardy bulb | ||
| Add To List Remove From List | Tiger Stripe Foamflower | Tiarella x | 'Tiger Stripe' | Hardy perennial | |
| Add To List Remove From List | Tina Crabapple | Malus | 'Tina' | Deciduous tree | |
| Add To List Remove From List | Tinkerbelle® Lilac | Syringa | 'Bailbelle' | Deciduous shrub | |
| Add To List Remove From List | Tiny Monster Cranesbill | Geranium | 'Tiny Monster' | Hardy perennial | |
| Add To List Remove From List | Tiny Rubies Cheddar Pink | Dianthus gratianopolitanus | 'Tiny Rubies' | Hardy perennial | |
| Add To List Remove From List | Toad Lily | Tricyrtis hirta | 'Alba' | Hardy perennial | |
| Add To List Remove From List | Tobacco plant | Nicotiana sylvestris | Annual | ||
| Add To List Remove From List | Toffee Twist Sedge | Carex flagellifera | 'Toffee Twist' | Ground cover, Hardy perennial, Ornamental grass | |
| Add To List Remove From List | Tojen Japanese Toad Lily | Tricyrtis hirta | 'Tojen' | Hardy perennial | |
| Add To List Remove From List | Toka Plum | Prunus | 'Toka' | Deciduous tree | |
| Add To List Remove From List | Tokajer Blanket Flower | Gaillardia | 'Tokajer' | Hardy perennial | |
| Add To List Remove From List | Tokudama Flavocircinalis Hosta | Hosta | 'Tokudama Flavocircinalis' | Hardy perennial | |
| Add To List Remove From List | Tolleson's Blue Weeping Juniper | Juniperus scopulorum | 'Tolleson' | Evergreen shrub | |
| Add To List Remove From List | Tom Thumb Cotoneaster | Cotoneaster apiculatus | 'Tom Thumb' | Evergreen ground cover, Ground cover | |
| Add To List Remove From List | Tompa Norway Spruce | Picea abies | 'Tompa' | Evergreen shrub | |
| Add To List Remove From List | Toothache Plant | Spilianthus oleracea | Annual | ||
| Add To List Remove From List | Tor Birchleaf Spirea | Spiraea betulifolia | 'Tor' | Deciduous shrub | |
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