10-14″ x 12-18″ Plant breeders have a home run with Petchoas, a hybrid cross between Petunia and Calibrachoa, with the best characteristics of both. First the foliage is non sticky, as all Petuniaa are. Second the flowers are much larger than Calibrachoa, although somewhat smaller then the largest Petunia varieties. The color range is extensive, blues to red to purple. These perennials are strong performers in the garden, taking heat, wind and rain in stride.
Blue Petchoa is my favorite with large deep blue flowers and having a semi-trailing habit. Cut back into green leafy areas after a flush of bloom and fertilize for another show. Plant in full sun to light shade and give moderate water.