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The Ageratum plant is a representative of the Astrov family. In its natural environment, its small bushes with pompom flowers are found in the regions of Central and North America, as well as in eastern India. This genus includes about fifty species, including poisonous plants.

The name of the ageratum is translated as "ageless" and is associated with the long flowering period and the preservation of the attractiveness of the flowers of the bush. For the same reason, some plant species are known as "long-flowered". Ageratum came to European countries around the 19th century. An unpretentious, fragrant and beautiful flower has long won the love of gardeners, and its cultivation will not be difficult.

Although ageratums are perennial plants, they retain such a development cycle only in their homeland - in warm countries. Flowers will not survive frosty winters, therefore, it will be possible to grow them as perennials only indoors - in a greenhouse or at home. In gardens of the middle lane, bushes serve as annual garden decorations.

Ageratum description

Ageratums form bushes, reaching a height of 10 to 50 cm. Branched stems have pubescence. Foliage can be of different shapes: triangular, diamond-shaped or oval. The edges of the leaf blades are serrated, and the surface is slightly rough. Small fragrant flowers are collected in baskets that form complex inflorescences-shields, reaching up to 10 cm in diameter. Such inflorescences resemble fluffy caps, painted in shades of white, lilac and blue, pink or yellow. The effect of fluffiness is given to them by long forked stigmas protruding above the flower itself and having the same color as the perianth. The bushes continue to bloom from late spring to late autumn, in addition, the inflorescences can be cut for a long time. After flowering, seeds are formed on the bushes, ripening by the end of summer.

Ageratum: growing and care

Brief rules for growing ageratum

The table shows brief rules for growing ageratum in the open field.

LandingIt is possible to transfer ageratum seedlings to a flower bed with the onset of stable warm weather - approximately in mid-May.
Lighting levelFor growing ageratum in the open field, a bright place is best suited.
Watering modeFlowers don't need much moisture, so they don't need to be watered too often.
The soilThe soil in the flowerbed should be nutritious and breathable - heavy clay will not work.
Top dressingTo maintain flowering, it is recommended to feed several times over the summer.
BloomBushes continue to bloom from late spring to late autumn.
PruningIt is recommended to cut off wilted inflorescences. Periodic pruning of shoots will also make the flower more decorative.
ReproductionSeeds, cuttings.
PestsSpider mite, whitefly, nematode.
DiseasesRoot rot, cucumber mosaic, black stalk, necrosis.

Growing ageratum from seeds

Sowing seeds

To get strong flowering plants at an earlier date, ageratum should be sown on seedlings. Sowing seeds in this case is carried out from the second half of March to early April. Prepared containers are filled with nutrient soil. You can use a mixture of equal parts of peat and humus with sand, after disinfecting it. The substrate is moistened by gently sprinkling it, and then fine seeds of ageratum are superficially distributed. For convenience, you can mix them with sand. Sprinkle the seeds on top with a thin (no more than 3 mm) layer of earth. Then the container is covered with foil or glass and placed in a warm (about 22 degrees or slightly less) place. Seedlings will need a bright corner, sheltered from direct rays. The shelter will need to be regularly opened for ventilation, as well as to maintain moderate soil moisture.

Growing seedlings

Sowing ageratum from seeds. We grow a very beautiful flower

Sprouts appear within a couple of weeks. With the emergence of seedlings, the shelter is removed. After the formation of two true leaves, the seedlings dive into individual cups, or break the pick into two stages, initially planting in a common container, and later into glasses. It is possible to transfer ageratum seedlings to a flower bed with the onset of stable warm weather - around mid-May, having previously hardened the planting a couple of weeks before the scheduled disembarkation. Flowering occurs approximately 2-2.5 months after seed germination, depending on the characteristics of the selected variety. If the seedlings are too stretched during the maintenance of the house, they can be pinched.

Planting ageratum in open ground

For planting ageratum in open ground, a bright place is best suited. In the semi-shady corners of the garden, bushes will also be able to grow, but they will bloom much weaker.

The soil in the flowerbed should be nutritious and breathable - heavy clay will not work. For growing shrubs of ageratum, you can use a mixture of leafy soil with peat. It's good if her reaction is neutral. It is also undesirable to use excessively fertile soil - on humus-rich soil, bushes can grow strongly, but bloom worse.

Most often, ageratums are grown in groups, for example, forming a border from them. In this case, leave at least 15-20 cm between the plants. The bushes are carefully removed from the containers and planted in pre-prepared holes. The level of penetration must be maintained. Having filled the voids with earth, the seedlings are watered.

Ageratum care


Ageratums do not require a lot of moisture, so they will not need to be watered too often. The soil between waterings must have time to dry out, otherwise you can provoke rotting of the root system of the bush. It is especially important to monitor the irrigation regime during the rainy season - the flowers may have enough rainfall. But in dry weather, watering is carried out regularly - otherwise the flowering will be weaker. Bushes develop best in loose soil, therefore, after rains or watering, the soil is systematically loosened, clearing the surrounding area of ​​weeds.

Top dressing

To maintain the flowering of ageratums, it is recommended to feed it several times over the summer. For the first time, this is done a couple of weeks after planting, and then when the bushes pick up color. For the third time, feeding is carried out as needed, approximately in the middle of the flowering wave. The lack of nutrients is evidenced by the pallor of the leaves and the insufficiently intense color of the flowers.

For fertilization, you can use both organic matter (for example, mullein infusion) and mineral compositions. The main thing is not to overdo it with the introduction of nitrogen. This element promotes the rapid development of foliage, but is bad for flowering. Better to give preference to formulations that include more potassium and phosphorus. Also, fresh manure should not be used for fertilizing.


To prolong flowering and preserve a neat appearance of the flower bed, it is recommended to cut off the withered inflorescences of the ageratum, if there is no need to collect seeds. Periodic pruning of shoots will also contribute to a greater decorative effect of overgrowing plantings. On each stem, enough internodes are left for lateral branching, after which the bushes again begin to form shoots with peduncles.

Ageratum after flowering

Seed collection

Seeds from ageratums are harvested at the end of summer. They should be kept dry and cool in a paper bag. The germination capacity of such seeds lasts up to 4 years. But it is worth knowing that seed reproduction does not guarantee the complete transfer of the characteristics of the variety - the flowers obtained in this way can have a different color. To be sure to get plants with flowers of a certain color, you should use vegetative propagation.


In the middle lane, ageratums cannot overwinter outside - a cold snap below zero is considered critical for plants, therefore, for the new season, the bushes will have to be propagated using their seeds or cuttings. The most beautiful specimens can be transplanted into ordinary flower containers for the cold season and grown until spring in room conditions. The plants will continue to bloom even in winter. In mid-spring, the bushes can be used for cuttings. Rooted cuttings in the second half of May can be planted in open ground.

Propagation of ageratum by cuttings

For cutting ageratum cuttings, spring is best, but the bushes will need to be saved before it. Before the start of frost, the selected plant is dug up and transplanted into a pot. For some time it should be kept in a transitional room, where it will be slightly warmer than outside - for example, on a balcony. This will allow the flower to better adapt to changing habitat conditions. If the balcony is warm enough, you can leave the plant there or later move it into the house.

The transplanted bush can continue to bloom, sometimes delighting with flowers until winter. At the same time, a repeated wave of bud formation occurs very rarely. The faded ageratum is kept in a pot until March, and with the appearance of fresh shoots, cuttings are cut from the bush. The cuts are made obliquely so that the cutting can receive nutrients faster. The lower cut can be treated with a root stimulant, and then the cuttings can be planted in individual containers. An impromptu greenhouse - a can or a bag - will help speed up rooting. The seedlings are kept warm (about 22 degrees) and the moisture of the soil is monitored. As a rule, such plants take root in a couple of weeks. With the arrival of heat, the ageratums obtained in this way are transplanted into flower beds, like ordinary seedlings. They usually develop stronger and more branched bushes than seedlings.

Ageratum at home

A branchy, but fairly compact root system allows growing ageratums not only in open ground, but also at home. In order for the bush to feel good in a pot, a sufficiently large container is selected for it and a good drainage layer is provided. The flower is not too picky about the soil, so a universal substrate is suitable for growing it.

The ageratum pot is kept in a warm and bright place. For the summer, the flower can be transferred to the air - on the balcony or on the veranda. Watering is carried out in the morning, trying to direct the stream of water under the foliage so that drops do not fall on it. After watering, the soil in the pot can be slightly loosened to saturate the soil with oxygen. Universal formulations for flowering species are used as fertilizers. The plant does not require too frequent feeding, but the soil in the pot is depleted faster than the garden one, therefore, during active growth, the bushes are fed up to several times a month. But an excess of fertilizer can lead to stretching of the stems to the detriment of flowering. Stretching shoots can be pinched.

Ageratum ✅ Growing and caring for a plant

With proper care of the ageratum at home, its flowering can be enjoyed from the beginning of summer until the winter holidays. After the end of flowering, you can use the old bush for grafting according to the general principle.

It should be remembered that the juice of the Mexican ageratum contains toxic substances, therefore, such a plant should be kept away from children and pets - for example, in a hanging planter.

Ageratum pests and diseases

Unlike home shrubs, garden ageratums are quite vulnerable to diseases and pests, therefore it is recommended to maintain the plant's immunity, observing all the rules of cultivation.


Root rot

Excessively frequent watering leads to the problem of root decay, but decay can also be provoked by heavy rainfall, as well as the wrong place for planting - water should not accumulate in it. Affected bushes begin to wither, lose foliage and shed buds - these are the consequences of root disease. It will not be possible to cure such plantings, so they will have to be removed from the site, and the remaining ones should be treated with a fungicide that prevents the possibility of infection. To avoid such a disease, you need to plant ageratums in areas with drained soil, observe the irrigation schedule, and also regularly loosen the area near the bushes.

Cucumber mosaic

This viral disease is also considered fatal to planting. You can recognize it by the yellow spots on the foliage, gradually capturing the plate. Most often, such viruses are spread by pests, including aphids. Cucumbers usually suffer from them, so the flower bed should be located away from these vegetables. Ageratums struck by the mosaic are dug up, and the used tools and the soil where they grew are treated with bleach. Such measures will prevent the spread of the virus to neighboring bushes.


In this case, the bottom of the plant stem begins to rot. Usually bushes that grow in the shade, coolness and excess moisture are affected by the "black leg". The affected specimens are removed, and the rest are sprayed or watered with a solution of potassium permanganate in several stages with a weekly break.


This disease is also known as bacterial wilting. The upper part of the plants is the first to suffer, so necrosis can be recognized at an early stage. All affected parts of the ageratum will have to be removed, and the remaining parts should be sprayed with a product containing copper. They also spill the soil near the bush. If the treatment was carried out correctly and in a timely manner, the plantings should be restored. Otherwise, diseased plants are burned, and the soil under them is disinfected with boiling water. As in the case of other diseases, all manipulations should be carried out with gloves, and also do not forget about the timely sterilization of the working tool.


One of the most common pests of ageratum is a spider mite. He leaves light spots on the leaves of the bushes, and in advanced cases, covers them with cobwebs. Small lesions can be treated with a soap or alcohol solution. In other cases, the appropriate acaricide will do. Sometimes a whitefly appears on the bushes. In this case, parts of the plant are covered with a light bloom. Like the tick, the whitefly feeds on juices, gradually depleting the bushes and causing them to dry out. Insecticides will help get rid of it.

The most dangerous pest is the nematode. Depending on the species, it can attack the foliage or roots of the plant. Because of this, the bushes wither, their stems dry, and the leaves become deformed and spotted. Such ageratums will have to be removed from the flower bed. To prevent the appearance of nematodes, you need to monitor the cleanliness of gardening tools, and also plant plants only in sterilized soil.

Types and varieties of ageratum with photos and names

Ageratum Mexican (Ageratum houstonianum)

Or the ageratum of Gauston, Houston, Houston. It is this type that is most common in ornamental gardening. Ageratum houstonianum reaches a height of about 25 cm. On the basis of such plants, breeders have obtained many varieties with different colors of inflorescences.

  • Blue mink ("Blue mink") - the variety forms compact bushes up to 25 cm high. Despite their small size, they branch strongly. The inflorescences are colored lilac-blue, and numerous stigmas really give them a resemblance to the fur of a fur-bearing animal.
  • Aloha blue Is a lilac-flowered hybrid variety that blooms in early summer. The size of the bushes reaches 20 cm.
  • Alba - neat 20-centimeter bushes are strewn with white flowers. This variety belongs to late flowering: inflorescences on it open only by the middle of summer.
  • Summers Snow ("Snowy Summer" or "Summer Snow") - this variety is also distinguished by white flowers, but the size of the bushes is quite high - up to half a meter.Due to the larger inflorescences that resemble snow caps against the background of green foliage, the plants look especially impressive during the flowering period.
  • Red Sea ("Red Sea") - ageratum with flowers of unusual purple color. Medium-sized bushes grow up to 30-45 cm. They have branched shoots and fluffy inflorescences. Long bloom, from late spring to September-October.
  • Pink balloon - the variety has large pink inflorescences. It blooms from the second half of June to mid-autumn.
  • Cloud Nine ("The Ninth Cloud") - the variety series includes flowers of various colors: purple, white and pink. Due to the compact size of the bushes, such ageratums can be grown not only in the garden, but also at home, in a pot. Flowering lasts about 3 months, starting in July.
  • Cardinal bordeaux - profusely flowering variety forms spherical bushes up to 25 cm tall. The size of the inflorescences reaches 8 cm. The buds have a burgundy color, and the blossoming flowers acquire a more delicate shade. Flowering begins in late June and lasts until frost.

Ageratum in landscape design

Ageratum is one of the almost universal garden plants that can decorate any corner of the site with conditions suitable for this flower. It looks great in group plantings, goes well with other flowers, as well as with decorative deciduous species.

In group plantings, you can use both monophonic and multi-colored ageratums. Neat bushes of the same size will form an elegant fluffy carpet. Due to their low growth ageratums are often used as border plants, and also fill the first tier of mixborders with them. There they can look good in the company of lobularia, calendula or marigolds. Higher varieties can be placed in the middle tier, composing with phlox, zinnias or other bright colors.

Thanks to the ability to grow ageratums in pots and containers, you can decorate hanging pots or decorative garden containers with them. The small size of the bushes makes them resistant to strong winds, and the dislike for stagnation of moisture in the soil makes it possible to plant such plants not only in ordinary flower beds, but also in rock gardens and rockeries. It is only necessary to provide ageratum with sufficient nutritious soil.

Ageratum blue mink: sowing and growing

Ageratum is a native of Central America. Its name is translated from Latin as “ageless” and speaks of the ability to bloom for a long time and stand in bouquets for a long time.

Ageratum belongs to the Aster family. It is a small annual bush with bright green leaves and fluffy inflorescences of purple, blue, white, lilac or pink. The height of the bush depends on the variety and is from 10 to 60 cm. At home, in Central America, there are about 60 species of this plant, and there it is a perennial. In the middle latitudes, it is cultivated as an annual crop.

Although ageratum varieties suggest a variety of colors, you should be aware that in the bright direct sun, the white ageratum fades and loses its attractiveness. Pink ageratum does not have a rich pink color, but rather a dirty pink, which also does not make it a flower garden decoration. Purple and blue ageratum look best in flower beds.

Varieties: has a variety of varieties that differ from each other in flowering period, shape and color of inflorescences, leaf shape and bush height. Now ageratum hybrids are very widely used, because they are of great value because of their earlier, longer and more abundant flowering. The bushes of such plants are compact, of the same height, which is important for growing ageratum as a curb plant.

If you need to decorate ridges, mixborders, balcony boxes, then the ageratum blue muff, whose height does not exceed 20-25 cm, will be an invaluable assistant in this.

Ageratum blue mink has a special decorative effect - a neat compact bush 30-35 cm high. Its fragrant, fluffy inflorescences of lilac-blue color, dense and large, adorn flower beds from mid-June to late autumn.

Agricultural technology: ageratum blue mink is a light-loving and thermophilic plant, easily tolerates drought. It develops rapidly on light, non-acidic, sufficiently nutritious soils. But on very greasy, fertilized soil, it develops a large green mass, and does not tolerate damp and stony soils at all. Loves places, sunny and open, and even with a little shading, it stretches strongly, blooms uncommonly and is not so spectacular.

Reproduction: ageratum is propagated by sowing seeds, sowing them in seedling boxes at the end of March - in early April and lightly sprinkling them. Seedlings at a soil temperature of + 18-21 ° C appear in a week or two. Seedlings dive in 3 weeks, they are planted in open ground in spring, after the end of frost. Before planting, it is imperative to loosen the soil, spill the holes with water and plant the plants at a distance of at least 20 cm.

To obtain planting material, ageratum can be propagated by cuttings. To do this, cuttings are cut, stored in a cool place in winter. At temperatures above 20 ° C, the cuttings root quickly enough, and we get excellent seedlings for flower beds. Plants grown from cuttings retain the purity of the variety.

Care: although the ageratum blue mink has a sufficiently developed root system and is resistant to heat and drought, it loves abundant watering. The plant easily tolerates shearing, which makes the bushes more decorative and gives a new impetus for further lush flowering. Regular weeding and loosening, feeding with mineral and organic fertilizers and removing faded flowers will extend the decorative life of this plant and preserve the uniqueness of flowering. It must be remembered that ageratum does not tolerate waterlogged soil and fresh manure.

Diseases and Pests: Unfortunately, ageratum blue mink is vulnerable to pests. It is harmed by aphids and whiteflies, scoops and spider mites. Viral and bacterial diseases do a lot of harm. Treatment with chemical means of protection or infusions of insecticidal plants will help to get rid of them.

Usage: This flower is highly prized for its fairly rare blue coloration. We use it on flower beds, borders, ridges, in group plantings, as a pot culture for landscaping balconies. By planting the ageratum on the very edge of the flower garden in a sunny place, or along the garden paths, or as a whole group in the foreground of the flower garden, or right on the lawn, we will get a spectacular color spot. Ageratum is useful for outdoor flowerpots, balcony boxes or flower containers. Tall varieties of plants are suitable for cutting with other bright plants in bouquets.

Features of ageratum

On a fairly compact bush there are bright green petiole leaf plates in the shape of an oval, triangle or rhombus. Their edge is serrated. Leaves in the upper part are alternate, and in the lower and middle - opposite. There are many erect shoots, on the surface of which there is pubescence. Their height varies from 10 to 60 centimeters. Small bisexual fragrant flowers are part of not very large (diameter 1–1.5 cm) inflorescences shaped like baskets. And they are collected in complex corymbose inflorescences. They can be colored purple, pink, blue or white. The fruit is a 5-sided achene of a wedge-shaped elongated shape. 7 thousand seeds weigh only 1 g. Their good germination is maintained for 3-4 years.

In middle latitudes, ageratum is grown as an annual, because it is not frost-resistant. Such a plant will be able to decorate a rabatka, a flower bed, and will also look great in carpet compositions. Such a flower can be planted together with marigolds, calendula, snapdragons, which are also annual plants.

Transplanting seedlings

To plant the ageratum on the site, you need to choose a site well-lit by the sun, protected from the wind. In the shade, the shoots of the plant will stretch strongly, as a result of which, instead of compact, densely leafy bushes, you will get naked, disheveled, weakly flowering branches. Ageratum is unpretentious to the soil, but prefers light drained slightly alkaline soils. If you dug up a plot in the fall, then before planting the seedlings, it is enough to intensively loosen the soil with a garden pitchfork. The further procedure is as follows:

  • At a distance of 15–20 cm from each other, holes are dug, their volume should correspond to the dimensions of the pots in which the seedlings grew.
  • Bushes, without destroying the old coma, are rolled into the holes.
  • The holes are covered with earth, the surface of the site is compacted and watered with warm water.

It is advisable to appoint the planting of seedlings for the evening or on a warm cloudy day - in gentle conditions, the plants will recover from stress faster and grow. Ageratum grown through seedlings will come into bloom 50-60 days after the seedlings are moved to a permanent place.

How to grow ageratum

Growing ageratum is a simple process and any amateur florist can handle it, the main thing is to follow the instructions below.

Planting seeds

In order to qualitatively decorate the area near the house, it is enough to plant an exotic plant Ageratum, but before breeding, you should carefully study how to properly plant seeds in the ground. It is better to grow a flower culture from seed, and at the initial stage of breeding, sowing is carried out from the middle to the last days of the first month of spring.

For the process, containers of shallow depth are used, which are filled with a soil mixture. A small amount of sand, organic matter, peat must be present in the composition of the substrate. Before sowing, the soil is well moistened. The grains of the plant are very small, so they are scattered randomly, after which they are sprinkled with a thin layer of soil.

The box with the landings is covered with a material that preserves the microclimate, and removed to a warm place. Crops need daily ventilation and periodic moisture. For this purpose, it is very convenient to use a small special spray. After emerging two weeks later, the covering material is removed.

It is not difficult to grow ageratum from seeds at home, the main rule is compliance with all the few requirements. When the seedlings have strengthened, they released two real leaves, they are seated in another, more spacious container. Ageratum seedlings dive in two stages.

A repeated dive is carried out after a few weeks. Grown up mature sprouts are planted in individual cups. They contain plantings, in a dry warm room, the soil is periodically moistened. This is done only in the morning. Before planting ageratum in the ground, the seedlings are hardened.

Planting ageratum seedlings in open ground

When the threat of late frosts has passed, they begin to plant the ageratum in open ground. The place is chosen as bright as possible without exposure to drafts. On the site where the exotic plant will develop, the rays of the sun should be present throughout the day. Lack of lighting leads to stretching of the stems, provoking a rare meager flowering.

The soil is prepared light, slightly acidic with a lot of drainage and nutrients. The holes are made shallow, at a distance of ten to fifteen centimeters. The depth at which the seedlings developed is determined and planting is carried out at the same level. Correctly planted plants begin to bloom in the second decade of June.

Reproduction of ageratum

Growing ageratum from seeds is the main and most effective way of plant propagation. One mature ageratum fruit contains about 6 thousand seeds, which remain similar for 4 years. Seedlings are obtained as follows:

Growing ageratum from seeds is the main and most effective way of plant propagation

  • sowing ageratum seeds is carried out in the second half of March in a prepared mixture of equal proportions of peat, humus and sand. Ageratum seeds are very small, so they do not need to be sprinkled heavily. During the period of seed germination, the soil should be kept moist, sprayed regularly, and the box (pot) itself should be covered with glass (covered with cellophane) - the greenhouse effect will accelerate seed germination

Greenhouse effect will accelerate seed germination

  • the first shoots appear 8-14 days after sowing. Over the next 3 weeks, they are allowed to grow - until a pair of true leaves appears. Then they are dived into boxes (greenhouse) at a greater distance from each other

  • repeated picking into separate pots (cups) is carried out after another two weeks
  • for young plants, it is necessary to maintain dry air and slightly moist soil; with excessive dampness, young seedlings may die. When grown in a greenhouse, daily ventilation is required. Watering is carried out exclusively in the morning.
  • before planting in open ground, the plants must be "hardened" for two weeks

The use of an ornamental culture after the main flowering

Every summer resident wants to extend the life of a plant blooming in the open field. Before the onset of the first frost, the strongest lush ageratum bushes are selected, planted in individual pots for indoor flowers. Landings are installed on a veranda, an insulated balcony or in a well-lit room.

Plants bloom throughout the fall, including even the first winter month. If you maintain the root system for the entire cold period of time, then with the onset of spring, the cuttings can be cut, rooted and get an independent bush ready for development. As soon as it gets warm, the cutting is planted in open ground.

It is not difficult to grow ageratum on a personal plot, since caring for a plant is completely simple. The flower culture is quite popular among professional landscape designers and amateur flower growers who often have a weakness for exotic flower plantings.

Ageratum houstonianum Mill.

Syn .: Huston's agerat, Mexican ageratum.

Ageratum Huston is a perennial herb (sometimes a subshrub or shrub) with a highly branched root system and spreading shoots. In culture, a compact annual. Contains biologically active substances, due to which it has bactericidal and acaricidal activity, and also exhibits analgesic properties. It has excellent decorative qualities, it is bred as one of the best curb, widely used in floriculture and landscape design.

Table of contents

In medicine

Huston's Ageratum is a non-pharmacopoeial plant that is not used in official medicine. Currently, the aerial part of the plant is used in folk medicine in some countries as an antibacterial agent against the bacterium Rhodococcus rhodochrous and the acaricidal ixodid tick.

Contraindications and side effects

You should know that the leaves of Ageratum Huston contain substances that can cause irritation of the mucous membranes and an allergic reaction. Therefore, when using the plant for medicinal purposes, it is necessary to consult a specialist. The use of ageratum is not recommended for pregnant and lactating women, as well as for individual intolerance and in childhood.

In cosmetology

In cosmetology, oil extract from ageratum leaves is mainly used. The extract is also a raw material in the cosmetic industry.

In gardening

Ageratum Huston, due to its excellent decorative qualities, is very popular with flower growers. First of all, it is a long-flowering (up to the very frost), unpretentious plant with fragrant inflorescences-baskets of various shades (from white to deep purple).The decorativeness of the Huston ageratum lasts the whole season, therefore the plant is widely used to decorate various compositions (flower beds, flower beds) in city squares, parks, to create bright carpets and low borders, ridges, alpine slides and mixborders, as well as terraces, balconies (in hanging boxes , baskets, pots), outdoor flowerpots, containers, bouquets and as a pot culture. In landscape design, ageratum is especially effective in group plantings with other plants, in particular antirrinum, asters, marigolds, heliopsis, calendula, rudbeckia, cynia, verbena, snapdragon, etc.). Tall forms of ageratum are cut, used in the design of small flower bouquets. The decorativeness of the ageratum is also preserved during drying, its flowers always remain bright and beautiful, therefore the plant is used to decorate various flower arrangements.


Ageratum Huston (lat. Ageratum houstonianum) belongs to the genus Ageratum (lat. Ageratum), of the Compositae, or Asteraceae family. The genus includes about 43 species of herbaceous plants. In culture it is known as the Mexican Ageratum of Huston.

Botanical description


Huston's Ageratum in a wild form is distributed mainly in the tropical regions of America, as well as in Mexico, Peru, and Eastern India. In Russia, ageratum is cultivated almost everywhere, as one of the best border plants. In addition, in some regions (Moscow and Ulyanovsk regions) ageratum is found as an invasive plant.

Procurement of raw materials

The aerial part of the ageratum, especially its leaves, has medicinal value. Raw materials are usually harvested in dry, sunny weather at the flowering stage. Dried in the air in the shade under a canopy, in well-ventilated rooms, or in a dryer at a temperature of 30-35 degrees. Raw materials are stored in dry rooms in cardboard or plywood boxes for a year.

Chemical composition

Huston's Ageratum contains essential oils (Precocene-I, Precocene-II, β-caryophyllene), pyrrolizidine alkaloids (lycopsamine, heliotridine and retronesin) are found in it.

Pharmacological properties

Ageratum Huston has antibacterial and acaricidal activity. In addition, ageratum exhibits analgesic and antiseptic effects, and also promotes rapid wound healing.

Application in traditional medicine

In folk medicine, Huston's ageratum is used as an analgesic and antiseptic. From the aerial part of the ageratum, infusions and tinctures are prepared. In folk medicine, Huston's ageratum is used to quickly heal wounds. The aerial part of the plant is also used in home dermatology for various inflammatory processes of the skin, vitiligo and lichen. Traditional healers recommend applying juice from the fresh aerial part of the plant to the affected areas.

Historical reference

Huston's Ageratum has been known in culture since 1733. There are different interpretations of the specific name of the plant. Some authors associate it with the name of an English doctor and botanist who studied the flora of Mexico and South America, William Huston (1695-1733), according to others, a plant that came to Europe (1730) from Mexico was initially called the Mexican ageratum, but later he was given the name of America's hero Samuel Huston (Houston), the first and third president of the Republic of Texas, politician and statesman.

The generic name "Ageratum" comes from the Greek. "Ageratos" - means ageless, for the ability to maintain the color of flowers for a long time.

The people call the plant a long-flowered flower, a flower stream, a blue goat's club, etc.


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