Best used as a foliage plant, this plant's intricately cut, frosty-silver leaves produce a large, elegant arching mound. It also bears pale lavender-blue pin-cushion flowers on lanky 30-inch stems in late spring.

This rose-and-cream Calibrachoa is one of a kind. The unique markings on the petals and the plant's mounding habit make it a standout in hanging baskets and containers.

Calibrachoa is a relatively new genus of flowering plants. The first cultivars weren't released until 1992. This cultivar's self-cleaning, petunia-like flowers are painted in a sunny mix of orange, red, and yellow. It is an easy-to-grow, trailing perennial, often used as an annual in hanging baskets, window boxes, and other containers.

Datura metel grows 3 to 4 feet tall with large dark green leaves that have a bad smell. However, the large trumpet-shaped flowers have a sweet fragrance that spreads throughout the garden in the morning and evening. Flowers may be single or double and range from white and yellow to pink and purple.