How to Grow and Care for Whiteweed

Flossflower (Ageratum houstonianum) is a low-growing annual that attracts butterflies bees and birds. Fragrant aster-like flowers blooming from spring to fall are usually vibrant blue but can also be white or pink. This plant prefers full sun to partial shade is resistant to deer and rabbits and makes a colorful addition to any garden. 15 to 30 cm in height.

Tropical whiteweed (Ageratum conyzoides) has a very shallow root system, making it capable of growing in thin and rocky soils along just as well as deep and fertile soil. Their seeds have tiny hairs attached to passing wildlife, allowing them to be spread far and wide. The genus name of this plant, Ageratums, means "non-aging" in Greek and refers to its robust growth and long life.

Flossflower 'Blue Horizon' is a Bluemink named for its clusters of fluffy blue-purple flowers. This plant is most valued by gardeners as a bedding plant that mixes extremely well with other flowers. This hybrid is shorter than the parent plant, growing to 75 cm in contrast to 1 m.

Like many Bluemink hybrids flossflower 'Horizon' is named for something blue; in this case, a horizon. This cultivar is popular with gardeners for its showy blue-purple flowers and for attracting bees and butterflies. This cultivar is noted for its sturdy and upright stems.

The flossflower 'Summer Snow' is an F1 hybrid houstonianum. This summer flower has snowy, floss-like petals, giving it a fluffy look. If you enjoy a splash of white amid the brightness, they can be lovely accent flowers. They also work beautifully as a border for a brightly colored garden, giving it a gilded look.