All dahlias

Dahlia 'Red Bicolor'

Dahlia 'Red Cap'

Dahlia 'Rejmans Firecracker'

Dahlia 'Rocco'

Dahlia 'Rosella'

Giant flowered dahlia

Dahlia 'Ruby Murray'

Dahlia 'Ruskin Myra'

Dahlia 'Sam Hopkins'

Dahlia 'Sandra'

Ball dahlia

Dahlia 'Sascha'

Dahlia 'Shandy'

Dahlia 'Show 'n' Tell'

Giant flowered dahlia

Dahlia 'Sincerity Bronze Orange'

Dahlia 'Small World'

Dahlia 'Sorbet'

Dahlia 'Spartacus'

Dahlia 'Star Wars'

Dahlia 'Stevie D'

Dahlia 'Strawberry Bon Bon'

Dahlia 'Suffolk Punch'

Dahlia 'Summer Night'

Dahlia 'Sunset Glow'

Dahlia 'Sunshine'

Dahlia 'Sylvia'

Ball dahlia

Dahlia 'Tahiti Sunrise'

Dahlia 'Tally Ho'

Dahlia 'Tamburo'

Cactus dahlia

Dahlia 'Taratahi Ruby'

Dahlia 'Tartan'

Decorative dahlia

Dahlia 'Teesbrooke Audrey'

Dahlia 'Tessy'

Dahlia 'The Phantom'

Anemone-flowered dahlia

Dahlia 'Tiptoe'

Dahlia 'Totally Tangerine'

Dahlia 'Trelyn Rhiannon'

Dahlia 'Trelyn Seren'

Dahlia 'Twyning's After Eight'

Dahlia 'Twyning's Chocolate'

Dahlia 'Twyning's Smartie'

Dahlia 'Valerie McDonald'

Dahlia 'Vancouver'

Giant flowered dahlia

Dahlia 'Verrone's Obsidian'

Dahlia 'Waltzing Mathilda'

Open dahlia

Dahlia 'Weston Pirate'

Dahlia 'Weston Spanish Dancer'

Dahlia 'White Alva's'

Dahlia 'White Aster'

Dahlia 'White Perfection'

Giant flowered dahlia