Introducing Dahlia 'Imperialis Tree Dahlia,' a giant and exotic half-hardy species that stands out for its enormous size and tropical allure. This remarkable dahlia, also known as the Imperial dahlia, can reach up to an impressive three meters in a single growing season. Its defining feature includes massive, elder-like leaves, each stretching around a metre in length, held on impressive stems reminiscent of bamboo. While often grown for its huge tropical foliage, Dahlia 'Imperialis' transforms into a magnificent specimen in a tropical border, adding a jungle-look to your garden.