Alsobium: Home Care, Replanting And Propagation, Species

Alsobium is a groundcover plant species. This herbaceous flowering perennial can be found in the tropical rainforests of Colombia, Brazil and South America. On the surface of dark green leaves of oval shape there is a pubescence, it looks similar to leaf plates of violets. This plant is also commonly called the "lace flower", because of the unusual fringe at the ends of its petals.

The genus Alsobium unites only 6 species, but only 3 of them are cultivated in room conditions.

This flower can be grown both in hanging cachepots and in basket pots. It does not require too much attention, and if he provides the right care, then he will be a wonderful decoration of any apartment. It will make you happy for many years with its unusual flowers.

Home care for Alsobia

Alsobium: home care, replanting and propagation, species


Alsobium reacts negatively to direct sunlight. It is recommended to choose places with bright, diffused light for its cultivation.

If the flower is placed in a shaded location, however, it may suffer from poor light. At first its foliage will become faded, and then the plant will slowly begin to die. From the second half of October, the duration of daylight begins to shorten, so alsobia provide additional extra light, for this purpose you can use a phytolamp. In winter, it is best to move the bush to a window sill with a southern orientation, but it should be shaded from direct sunlight.

Temperature regime

The plant should be protected from drafts, as well as sharp changes in temperature, because it can die because of them.

The flower grows best at a temperature of 18-25 degrees. If the room is cooler than 18 degrees, the leaves will become dull and droopy and will stop growing altogether.

Air humidity

Alsobium: home care, replanting and propagation, species

Since alsobium leaves are pubescent, you should never moisten them with water from a sprayer. If droplets of water get on the leaf plates, this can lead to rot. To increase the humidity level in this case it is recommended to use a domestic humidifier or you can put an open vessel filled with water nearby the plant.

At a low humidity level the alsobia can grow and develop normally, but flowering in this case will be poorer.


Pour the flower moderately, and perform this procedure only when necessary, namely when the top layer of potting soil dries out. When moistening the substrate, pour the water carefully under the root, otherwise it can get to the surface of the leaf plates, which will cause rot. Very well drained or melted water with a temperature of around 23-25°C is best. To make the flower grow and develop normally, the soil mixture in the container should always be a little damp (not wet).

Once the plant is watered you need to drain the water, which has accumulated in the tray. Not draining will result in the substrate becoming too wet, which is the main cause of various fungal diseases.


Alsobium: home care, replanting and propagation, species

When planting or transplanting alsobia, it is very important to use the right potting soil. Experienced florists recommend in this case to use potting soil for violets, which can be purchased at specialist stores. But before you start planting, ready to add a little perlite or river sand and all mixed well.

You can if you want to make a substrate and his own hands, for this combine the sand, peat, humus and leaf soil (1:1:1:2). All components are well mixed and in the ready-made earth mixture to improve its quality poured a small amount of sphagnum, coconut fibers and charcoal. Besides improving the structure of the substrate noticeably, charcoal can also act as a disinfectant.

Alsoobia can only be grown in a loose and light soil mixture that is permeable to water and air. For planting, choose a low but wide pot with fairly large holes in the bottom for drainage.

Potting the Alsobia

Alsobium: home care, replanting and propagation, species

Potting the flower is done only when necessary, and more precisely after the root system becomes too crowded in the pot. As a rule, alsobia is subjected to this procedure once every 3 years. When choosing a new container, pay attention to the fact that it should be slightly larger than the old pot. If the bottom of the container has no holes for drainage, then if possible make them yourself. Also at the bottom it is necessary to make a good drainage layer, for this you can use expanded clay.

The new soil must be loose and well drained (see above). To prevent various diseases and to disinfect the substrate, it is mixed with a small amount of wood ash and moss. By using the right soil mixture with the recommended additives, a favorable microclimate will be created for the growth and development of the flower and it will also be less stressful after transplanting thanks to this substrate.


Feed alsobia only during its active growth, which is observed in the spring and summer time. You can use ready-made fertilizer for violets, which is available at the flower store.

When preparing a nutrient solution, remember that its concentration should be 2 times less than that recommended by the manufacturer (see the instructions on the package). Fertilize regularly once every 15 days.


Alsobium: home care, replanting and propagation, species

Flowering of Alsobia begins in April and ends in August. The color of the flowers depends on the species and cultivar, and can vary from pale lettuce to coffee or white. Some varieties have petals with speckles of pink or red.

A common feature of all Alsobium species and cultivars is that the flowers have a fringe at the tips of the petals, which makes them look very unusual and showy.


Thanks to regular trimming, the shrub will always be compact and neat. Only the superfluous stems and the ones that have become too long should be cut back. If the bush is cut in good time, it will flower more abundantly and increase the amount of foliage.

When cutting, remember that if too many side branches are cut, it might not finish flowering.

Winter care

Alsobium: home care, replanting and propagation, species

Alsoba is dormant from the first days of November to the last days of February. During this time, it needs to be cared for a little differently than during the period of active growth. As a rule, during the dormant period the growth of the Alsobia is very slow, and flowering is absent at this time.

During the dormant period, no fertilizer should be added to the soil, and the amount and frequency of watering should be necessarily reduced. During this time the plant is resting and gaining strength before the new vegetation period, therefore you should try to give it proper care so it will feel comfortable.

Alsobia - care and maintenance

Production methods

Alsobia can be propagated by seeds, daughter rosettes and cuttings. The last two methods are the most popular with flower growers.


Alsobium: home care, replanting and propagation, species

The plant can be propagated by both leaf and apex cuttings. Cut them off gently and plant them in some loosened and light potting soil beforehand. For rooting to be successful, the cuttings should be placed in a mini greenhouse, made with your own hands.

If everything is done correctly, the roots of the cuttings should grow after about 30 days. The cuttings can only be transferred into their own pots once they have cut roots at least 10mm long.

Producing with daughter rosettes

If you decide to propagate Alsobia with daughter rosettes, then they do not have to be detached from the parent bush. You can simply prick the rosette to the surface of the substrate in the pot right next to the mother shrub and after just a few weeks it will develop roots of its own. If the rosette is cut off, it can then be rooted in a pot filled with damp sphagnum or sand.

To make sure that the rosette is rooted, it is placed in a mini greenhouse where a microclimate will be created that is favorable for the growth of the roots. The roots on the rosettes should grow back in about 4 weeks if properly cared for. After that, the young bush can be transplanted into a permanent pot, using the same potting soil as the adult plant.

Diseases and pests

Alsobium: home care, replanting and propagation, species

Home grown alsobium is very resistant to various diseases and pests. However, problems can sometimes occur with it too, but usually this only happens if it is not properly cared for or not given the right growing conditions.

Possible problems:

  1. Pests. If the humidity in the room where the flower is kept is too low, spider mites, aphids and scale mites can settle on it. To get rid of these insects, spray the shrub with a solution of an insecticide (Actellicum).139>
  2. Cold water. If the substrate in the pot is dampened with cold water, this will cause the leaves to wilt and dark-colored spots to form on their surface.

    Remember to use only warm water (about 23 degrees). You can tell if the plant is experiencing a lack of moisture by the following signs: the newly formed buds drooping and the unfurled flowers wilting. Increase the frequency and the watering frequency.

  3. Overwatering. If alsobia is watered excessively, it can cause rot on the roots and kill the bush.

  4. Direct sunlight. If the foliage is exposed to direct sunlight, then dry brown spots (sunburns) will appear on its surface. Remember to shade the flower in time.

Alsobia species and varieties with photos and names

Alsobia carnationflower

Alsobium: home care, replanting and propagation, species

This groundcovering plant has rather short stems, covered with small dark green leaves whose surface is slightly downy and their edges are serrated. The shoots are colored pale brown.

The lacy flower has a white color and there is a small fringe on the edges of its petals.

Alsobia point

Alsobium: home care, replanting and propagation, species

The pointatus variety has a single, straight stem. The flat, oval-shaped leaves have little light-colored pubescence, and there are serrations on the edge. The flowers may be colored lettuce, white or cream and decorated with a pale pink or red mottle.

Alsobia signet

Alsobium: home care, replanting and propagation, species

This hybrid variety was specially created for cultivation at home.

The bush is decorated with large leaves with serrated edges, colored greenish and with slight pubescence on their surface. Its throat is decorated with small speckles of red or pink and it has a fringe on the edge of the white petals.

Alsobia san Miguel

Alsobium: home care, replanting and propagation, species

This variety was also bred especially for indoor cultivation. There is pubescence on the surface of the large bluish-green leaves, with a toothed edge. The white flowers have a fringe on the tips of the petals and the mouths are decorated with speckles of red or pink.

Alsobium chiapas

Alsobium: home care, replanting and propagation, species

This hybrid variety is represented by a small shrub. The bush is decorated with large oval leaves, which have a slight greenish pubescence on the surface. The flowers are white or cream colored and have a showy fringe on the edge of the petals and are also decorated with small red speckles.

Alsobium variegata

Alsobium: home care, replanting and propagation, species

This alsobium stands out from the rest with its unusual foliage. It has a greenish color and oval shape, and there is a slight pubescence on its surface.

And unusual for such leaf plates is that on their edge or in the middle there are stripes of lemon or white hue. The flowers consist of white petals with a beautiful fringe at their tips.


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