Some of the most familiar perennials out there are species of the genus Rudbeckia, commonly called black-eyed Susans. Their cheery, bright yellow, daisy-like flowers are medium in size.
Like any plant, a perennial thrives only if it’s adapted for a particular climate ... It combines well with native and ornamental grasses and white or yellow perennial flowers. This herbaceous ...
require a growing environment that's similar to dahlias', which makes this plant a logical perennial companion in zones 7 to 10. Also grown as annuals, snapdragons put on showy flowers in a variety of ...