The evergreen plant Clusia is a member of the Clusia family. According to various sources, this genus includes 150-300 species, most of which can be found in the tropical regions of South America, but they also grow in North America. The genus was named after Charles Clusius (Charles de Lecluse) who was one of the most famous European botanists of the 16th century. Among the various species of Clusia there are some that can be cultivated at home.
Brief description of cultivation
As a rule, the clusia blooms in the springtime.
- Brightness. Duration of light day should be 12 h, but the bush should be protected from direct sunlight in the afternoon hours.
- Temperature regime. During the growing season - from 22 to 25 degrees, and during the dormant period - from 18 to 20 degrees.
- Pouring. Moisten the substrate not very often and moderately, and do it only after it has dried to 1/3 or ½ of its depth.
- Humidity of the air. On hot days and during the heating season, the shrubs should be systematically moistened with warm water from a sprayer.
Fertilize the plant from April to October 1 time in 15 days, for this purpose use a mineral complex fertilizer in half dosage. During cool wintering it is not fed.
- Dormant period. It usually begins in late fall and ends in the last winter weeks.
The bush is transplanted in the first spring weeks and only when its root system becomes very crowded in the container.
- Propagation. By birthing and cuttings.
- Diseases. Fungal infections.
- Pests. Mealy worms, scales, and spider mites.
- Properties. If the sap of the plant gets on the surface of the skin, it will cause irritation.
Properties of Clusia
Clusia are represented by evergreen shrubs and not very tall trees, which are most often epiphytic.
The seeds of this plant are carried by the wind or by birds, after which they begin to germinate directly on the host plant, or more precisely, in the plexus of its branches. At the beginning, the epiphyte forms aerial roots, with the help of which it attaches to the bark of the host plant. After that there is a gradual sprawl of roots, after they reach the surface of the ground, begin to be strengthened in it. Eventually, when the clusia grows, it begins to squeeze the host plant with its roots, and it dies.
The leathery leaf plates are bare and smooth to the touch, of a deep green color, they are short-cellular and supronotically arranged.
The full leaves are oval or lanceolate in shape and with a pointed apex, varying in length from 8 to 20 centimeters and width from 5 to 8 centimeters. There are also small-leaved forms of this plant. Wax petals on flowers from 4 to 9, they have a whitish-green color with spots of yellow or pink. Flowers reach about 50 mm across and have a very pleasant but subtle scent. They open in the evening and close in the morning.
The fruit is a round boll, reaching 50-80 mm in cross-section, its surface is covered with greenish skin. The skin becomes darker and then browner as the fruit matures. It opens up into a star-shaped opening and reveals a large number of seeds in its red flesh. The fruit should not be eaten, and if the juice gets on the skin, it may cause irritation.
Basic home care
Home care of Clusia
Clusia needs a long daylight period (10 to 12 hours) and light should always be diffused. Remember that between 12 and 16 hours the foliage of the shrub must not be exposed to the direct rays of the sun under any circumstances. If the light is too sparse, then the internodes of the bush will become elongated, due to which its appearance will become painful and unkempt. The clusia will grow best at home on an east or west window sill, but it can also be placed near a south-facing window. During the autumn-winter period and early spring, artificial light must be installed to increase the length of the daylight hours.
To ensure that the developing crown of the Clusia is symmetrical and grows evenly, the container with the plant should be turned around its axis by 180 degrees regularly twice a month.
During the growing season, the plant feels best at an air temperature of 22 to 25 degrees, and during the dormant period, the air temperature should be reduced to 20 degrees.
The room where the flower is should be ventilated systematically, but it should definitely be protected from drafts.
Watering should be moderate and quite rare. Only moisten the potting soil after it has dried to a depth of 1/3 or ½.
Remember that the water in the root system in any case should not stagnate, because this is extremely negative for the plant. Water the clusia only well settled for two days or filtered water at room temperature. On hot summer days and in winter, when heating devices are on and the air is very dry, moisten the foliage with warm, well-cleared or filtered water from a sprayer.
Fertilize the Glaucousia only during the vegetation period from April to October once every 15 days. A solution of universal mineral complex fertilizer is used, taking half the dosage recommended by the manufacturer.
During the dormancy period, it is not necessary to feed the plant, but only if the winter is cool. However, if both in summer and winter the loosest plant is in a similar condition, it should be given food during its resting period, but only once every 30 days.
Transplanting the loosest plant
Clusia is very sensitive to transplanting, therefore only if absolutely necessary, do so by transplanting. Do this procedure only after the flower has stopped growing altogether. The new pot should be larger than the previous one, but not very high and with a wide bottom.
First make a drainage layer, which should occupy ¼ of the height of the container. Carefully transfer the bush into a new pot, taking it together with a lump of earth. All voids are filled with a fresh earth mixture, for the preparation of which you can combine sand, leaf and garden soil (1:1:1) or peat, vermiculite, sand, coniferous and leaf soil (taken in equal parts). When the plant is transplanted, it should be watered. The first time it is protected from direct sunlight.
After transplanting the plant should not be fertilized for at least 6 weeks.
You can propagate the house cultivated Clusia by cuttings and grafts.
Get apical cuttings by cutting the upper parts of shoots, their length can vary from 15 to 20 centimeters. They can be rooted in clear water or in a mixture of sand and peat, don't forget to root the cuttings with Kornive or heteroauxin. The best way to root cuttings is to keep the temperature around 25 degrees and cover the cuttings with a transparent cover.
The hood is necessary to ensure that the humidity is always high. If you do it right, the cuttings will take root in about 30 days. Once the new roots are 10-15 mm long, the cuttings are potted and the same potting soil is used as for transplanting the adult shrubs (see above).
The filamentous airy roots on the bush, which feed the plant like normal roots, gradually proliferate and become very dense. Once this happens, the stem with the aerial root can be cut off from the parent bush and planted in an individual container.
For a few days, the offshoot is shaded from direct sunlight. Hence, you can care for the clusia as if it were an adult plant.
Propagation of Clusia from A to Z/Comfort plants
Diseases and pests
Clusia is very resistant to various diseases. However, if it is not properly cared for or not given the right growing conditions, it too can have problems. For example, if the bush does not get enough light, its leaves will turn yellow and fall off.
Regular moisture stagnation in the substrate will result in the formation of a fungal growth on the surface of the leaf plates, which will eventually cause the plant to rot. At the first signs of fungal infection on the bush, it is pulled out of the container and cut out all the rotten areas with a very sharp presterilized tool, making sure to capture the healthy tissue. Next, the clusia is planted in a fresh soil mixture. Don't forget to adjust your watering regime to avoid the plant rotting again.
Pests such as mealybugs, scale mites and spider mites may settle on the globeflower.
All of these insects are suckers, which means they make punctures in the leaf plate and suck the sap out of it. This causes the shrub to wilt and also deforms the young shoots and leaves.
If the plant is infested with worms or scale mites then first remove them from the surface of the plant with a cotton swab moistened in a solution of soap or alcohol. Then the bush is well washed with soapy water, while protecting the surface of the substrate with film, so that the soap solution does not get into it. Once the Clusia has dried, it is sprayed with a solution of an insecticide.
Pauline mites cannot be seen with the naked eye because they are very small. They prefer to settle on the underside of leaf plates, where the finest cobwebs woven by such spider-like creatures can be found. Small discolored dots are formed on leaves in places where they bite, and this is how you can tell if the pests are on the plant. Wash the clusia under a warm shower. If the pests are not many, one such treatment should be enough to get rid of them since they prefer to live in a warm dry place.
But if there are many insects, spray the bush with an acaricide solution after the shower.
Species of Clusia with photos and names
Clusia major (Clusia major)
Or Clusia pink (Clusia rosea). This species began to be grown in the home relatively recently. This compact upright plant, which is an evergreen, is undemanding in its care and in its keeping conditions. Its height can reach up to 100 cm.
The full-length, large, supronate leaves have a glossy, leathery feel to them. Each successive pair of leaves in relation to the previous one is placed at an angle of 90 degrees. This plant is slow-growing and flowers are very rare. If cared for properly and in optimal growing conditions, it will develop waxy (like a magnolia) and fragrant flowers, which grow to about 50 mm across, white with pink splotches and a deep yellow midrib.
- Rosea Princess - large flowers have a pink color and the foliage is green;
- Variegata - this mottled variety has a pale yellow border along the edge of the leaf plates;
- Yellow Variegated - foliage is decorated with yellow specks.
The species is a spectacular evergreen small tree or shrub. The tree can reach a height of about three meters. The leathery to touch lanceolate leaf lamellae reach up to 75 mm in length. The spiky, richly coloured flowers are about 50 mm in diameter and have dark red spots on the inside of the petals.
This evergreen plant can reach up to 10m in height, so it is recommended to grow in special greenhouses.
The leathery to touch obovate leaf plates are about 17 centimeters wide and up to 45 centimeters long. The large, funnel-shaped flowers, which are arranged in whorls, are about 20 centimeters across.