The best annual flowers aren't really annuals. They bloom, drop seed, and come back the following spring without being replanted not because the plant survives winter, but because the seeds do. Summer Bloom Arizona Wildflower Mix Charcoal gray fiberglass planters on the east side of the patio, by the basement entrance to the house, are planted with Japanese maples, Acer palmatum 'Sango kaku', Dichonrda argentea, Carex flagellifera, and Calibrachoa. Photo How to Grow Echinacea Perennial Favorite Medicinal Herb Sow Right Seeds Liquorice (Glycyrrhiza glabra) seeds Full Size Yucca Cane