One such species is Verbena bonariensis, seen in the images here. This tall and slender species can grow up to 6 feet tall, towering upwards with fountains of purple flowers that are pollen-rich ...

and Verbena bonariensis, native to South America, popular for its long-lasting purple blooms, as seen in the image above.

In early winter, tender plants like Verbena bonariensis or dahlias will benefit from a thick mulch. It will help protect roots and the crown of the plant from frost. The best time to mulch entire ...