"The Petunia Supertunia « Lemon Plume, 'Petunia hybrids', are brilliant in color and are very low maintenance. The Lemon Plume has beautiful lemon yellow flowers. Supertunias are a vigorously trailing species of an everblooming, long-living petunia from Australia. They will provide long-term color in full sun areas throughout the season, and can grow nearly an inch a day. They do not need to have their dead flower heads removed to continue flowering and they are not leggy. For zones 9-11, this plant can also be a perennial."