Slender Petals And Distinctive Colouring And Shape Will Make This Dahlia A Star Turn In Your Garden. Showy Single Flowers Take Dahlias To A Whole New Level. They Were A Sensation At The Shows And They Will Be In Your Garden.plant The Tubers At Least 20cm8in Deep And 75cm30in Apart When There Is No Risk Of Frost And The Soil Has Warmed Up. When Stems Are Around 30cms1ft Tall Start Staking Them. Dahlias Will Grow In Almost Any Location