Most elephantâs ears are perennials and will come back every summer in the Lower, Coastal, and Tropical South. Some are perennials in the lower part of the Middle South.
Dahlias are available in different heights, dwarf dahlias are normally 12 to 18, and the taller dahlias grow 5' to 6'.Dahlias up to 2 ft.ahlias are available in different heights, dwarf dahlias are normally 12 to 18, and the taller dahlias grow 5' to 6'. Dahlias up to 2 ft.
Select a container with a diameter of 12 to 14 inches and depth of 12 inches or more. Containers with flat bottoms provide better support than tapered pots for these massive plants. Check that the container has adequate drainage holes, as dahlias suffer from wet soil. Drill holes to increase drainage, if necessary.