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.
1 Dahlias are most often grown from tubers (like bulbs) planted in the spring. 2  If you want the best varieties though, be taking notice of the plants that are blooming in early fall, and take note of the variety. 3  One way to do this is to visit a nursery and check out plants in pots.ereâs how to grow dahlias, the easy way! 1  Dahlias are most often grown from tubers (like bulbs) planted in the spring. 2  If you want the best varieties though, be taking notice of the plants that are blooming in early fall, and take note of the variety.