Agerato (Ageratum houstonianum)

To speak of plants and their properties is to refer to a vast and wide world that includes all the flora that surrounds us every day. Each leaf that comes out of the earth is a different type that grows with its specific characteristics and properties, such as the Ageratum houstonianum or agerato, a flower with medicinal properties and ideal for decoration.

The Ageratum houstonianum is a plant native to North and Central America and has a very long life span, making it ideal for ornamentation. With good cultivation care you can enjoy this plant with great benefits and an invaluable aesthetic value.

Cultivation process

The Ageratum houstonianum is a seasonal plant that usually reproduces during the spring until the end of the summer. When they are in their greatest splendor, they are the favorite to decorate the gardens thanks to their colorful blue color that adorns the exterior until after their season when they are discarded.

During its flowering season, it can reach about 12 inches in height and its flowers take on a pompous shape that is used by decorators to add volume to gardens and flower arrangements.

To grow it, its planting should be organized in an area that is in full sun or in semi-shady areas if they are grown in pots. The ideal time for its cultivation is recommended between January and March when the climate is generally at minus 2 C. The soil to be selected must be a loose soil that is humid for the plant to develop normally.

At the time of sowing, a distance of 30 cm should be maintained between each plant, maintaining a constant irrigation system of twice a week including a dose of fertilizer every fifteen days for flowering to be successful.

During its growth process it is important to maintain the correct height of the plant and the distance between them ( minimum 20 cm ) so that it develops its volume and leafiness.

To improve flowering and make it grow longer, it is important to cut its tips during its youth stage and thus increase its density. Already at this stage they begin to bloom so it is necessary to water it every two days and remove the withered flowers to stimulate flowering.

Ageratum houstonianum benefits

Also known in some places as mastranto, St. John’s wort or blue matchstick, this is a plant that can be found seasonally in most botanical centers and naturist houses.

Among the benefits associated with its use are its sedative properties thanks to its analgesic and calming qualities produced by the infusion of its leaves that help to recover from muscle spasms and arthritis problems.

It is also ideal for improving some digestive problems such as flatulence, diarrhea or abdominal spasms, as well as being an effective reliever of menstrual cramps.

Rheumatic pains are also relieved when the infusion is applied together with alcohol, while the juice of the plant helps to avoid infection in wounds promoting rapid healing.

On the other hand, in gardening, its qualities of being a voluminous and striking plant, makes it ideal for filling the gardens and combining them with plants such as sage that are enhanced thanks to the bluish tones of the Ageratum houstonianum.


Like any plant that goes through a growth process, it must take a series of care, especially if irregularities are observed that may be products of diseases or pests. If we notice that the plant has poor flowering, this may be due to the lack of sunlight, so it is recommended to orient them in direct sunlight for at least five hours.

The lack of humidity can cause it to wilt and even lead to the appearance of the spider mite, an insect that causes discoloration of the leaves, so it is necessary to avoid its appearance by applying water and potash soap along with other insecticides of organic origin.

Related posts

Deja una respuesta

Tu dirección de correo electrónico no será publicada. Los campos obligatorios están marcados con *

Botón volver arriba