Pompon dahlias, as their name suggests, have pompon-like flowers. The flowers of these varieties all have round honeycomb formation. With diameters of around 50mm and 75mm for the large pompons, they can be expected to reach a height of around 1m.
The petals curve inwards to create stunning, intricate blooms up to 5cm across. Ball dahlias have a slightly flattened top, with blunt or rounded petals arranged in a spiral pattern.