Cereus "Cereus" is ideal for breeding at home. It has few requirements regarding care, reproduces without problems and is highly resistant.
Cactus "Cereus" stands out among other cacti for its size - the height in natural conditions can range from 10 to 20 meters. In addition, the plant is also a long-liver, because some representatives of the species have successfully existed for several hundred years. Since the cactus is able to accumulate moisture inside the stem, it can survive even in very difficult conditions, for example, with temporary impossibility of watering. The tetrahedral shoot is colored in shades of green, but the needles most often have a dark brown color, almost black.
Flowering "Cereus" usually lasts from May to June and occurs only at night. The cactus flower is located on the side of the stem and has an unusual color, having a white or pink color with a golden core. The opened buds smell very nice, usually vanilla. At home, cactus bloom rarely occurs, as it is possible only under special conditions that are difficult to achieve on their own.
"Peruvian Cereus" is also called "Rocky Cereus . " The unusual name was obtained due to the shape of the plant, resembling rocks. The stem of this variety resembles a cylinder, and it is painted in a green-gray shade. On the surface of the stem are ribs. The height of the Peruvian cereus, growing at home, ranges from 50 to 100 centimeters.
Cactus blooms usually at night, releasing large snow-white flowers with a pleasant smell.
This variety is also capable of fruiting, during which red or orange berries appear, even those allowed for food. Rocky Cereus requires quality lighting. During the warm season, it should be raised on the balcony or windowsill of a window facing south, and in winter to install additional lighting. Special phytolamps will help to solve this problem.
Since Cereus is able to accumulate moisture, it should be watered regularly, but in moderation. In summer, irrigation would be well replaced by spraying.
"Cereus azure" in the wild reaches a height of 3 meters. The plant differs from other cacti in the presence of silver-bluish shoots growing on the sides. On the "Cereus" appears 6 or 7 ribs with felt areoles of a light brown color and a wavy border. Spines reach a centimeter length. They are located on the edges of the cactus, following radially. During flowering, large flowers appear, painted in a snow-white color. The length of the formation varies from 20 to 25 centimeters, and the diameter is in the range from 8 to 10 centimeters.
"Cereus Validus" , the second name of which sounds like "Cereus Strong" has a height in the wild of about 2 meters. The bush, as a rule, has from 5 to 8 shoots located on the sides. The processes are colored either in light green or in the shade of a sea wave. The number of ribs ranges from 4 to 8 pieces. Spines in the amount of 4 to 6 pieces grow on each edge. Their length reaches a couple of centimeters, and the color can be called a mixture of yellow and gray. During flowering, snow-white or even scarlet buds form on the cactus. Fruiting is realized in the form of reddish berries with white pulp.
"Spiral Cereus" is a perennial cactus, whose thick stems have the shape of a ball, flat or embossed. The length of the spines varies from 2 to 3 centimeters, and the color is a mixture of brown and green. Flowering is carried out by the appearance of large buds, painted in pink and white. "Steel Cereus" has bluish shoots located on the sides of the plant and reaching from 10 to 20 centimeters in diameter. Over time, the dimensions of these processes even increase.
The number of ribs ranges from 6 to 8 specimens. They are fairly straight, with gray halos. The length of the spines varies from 2 to 3 centimeters, and they are painted in a brownish-gray shade. Their number is 20 pieces. During the flowering period, one or a couple of huge buds appear, up to 30 centimeters. Flowers are painted in a mixture of white and green. Ten centimeter berries resulting from fruiting are painted in a coral shade.
"Giant Cereus" is often called the desert giant. It is even listed in the Guinness Book of Records, as it has the highest height in the world of 25 meters. Over time, lateral processes form on the cactus, and the shape of the trunk changes. Fruits the plant with bright red berries that can be eaten.
"Monster Cereus" has lateral processes capable of splicing, as a result of which the shape of the plant changes. The fruits that Monstrose gives are edible, and tall bushes themselves are often used to create hedges.
“Cereus Yamakaru” has a traditional cylindrical stem covered with a large number of light spines. The buds open at night, reaching a 20-centimeter diameter. Uruguayan Cereus is covered with sharp needles up to 2 centimeters long. The stem is painted in the color of a sea wave and covered with 5-8 ribs.
The names of other varieties of Cereus include Cereus Peruvian Florida and Cereus Peruvian Paolin . Cereus, in addition, include species such as Trichocereus, Chametzereus, Cephalocereus, Echinocereus, and Pilozocereus. By the way, the care for all cacti of this variety is approximately the same.
Conditions of detention
“Cereus” needs abundant lighting, so it should be kept in a room facing south or southeast. In the summer, it’s worth even making flowerpots on the balcony or loggia. When the amount of lighting is insufficient in the winter season, it is reasonable to organize additional illumination with the help of fitolamps.
It is important to mention that from the end of the winter period to the onset of summer, the amount of sunlight should increase gradually, otherwise the cactus will get burns.
Temperature is not a key indicator in the development of Cereus. In principle, even high summer temperatures will not harm him. Nevertheless, some conditions regarding the temperature regime are still present. In the cold season, indicators should be in the range of 8 to 10 degrees heat. In the warmer months, temperatures range from 15 to almost 30 degrees Celsius.
The soil in which Cereus develops can be neutral or acidic, but in no case alkaline. When forming the substrate yourself, it is important not to forget about the addition of river sand and crushed brick fragments. Excess soil for the cactus will be critical. When the soil mixture is purchased in a store, the choice should be given to compounds intended for succulents or cacti.
At home, caring for a cactus is not so difficult. Water for irrigation should take warm, room temperature. Both hot and cold fluids are more likely to harm the plant. Excessive water hardness is also considered unfavorable - if possible, it should be defended. During spring and autumn, irrigation should be moderate, and in the fall it should be reduced.
In winter, the frequency of irrigation is reduced to once a month. It should be remembered that “Cereus” reacts extremely negatively to excess moisture, which provokes decay of the root system. Humidity is important for a cactus. On hot summer days, it is recommended to spray it additionally with warm filtered liquid.
Fertilization occurs from April to July. It is most convenient to use liquid formulations intended for cacti, the use of which occurs according to understandable instructions. In the summer, the development of the plant is very active, so you can’t do without dressing during this period either. During the rest period, usually in winter, fertilizer application is not required. Irrigation either stops, or as mentioned above, is reduced to once a month.
The first cactus transplant takes place at his young age. Its main purpose is to replace the pot with a wider, but equally deep. When the cereus enters the maturity stage, it is necessary to change its habitat every couple of years. The bottom of a shallow container is covered with a drainage layer made of pebbles and expanded clay. Most often, this plant variety is propagated using seeds.
Nevertheless, some of its varieties can only be propagated by cuttings.
In this case, the cactus shoots will have to be separated, which then need to be dried in the fresh air until a couple of days have passed. Following Cereus, you can immediately place it in a shallow pot of soil and irrigate a little. As a rule, the formation of the root system lasts from a couple of weeks to a whole month. After this period, the cactus can be planted in separate containers.
If seeds are used, then reproduction should be from mid to late spring. Having completed the sowing, it is necessary to monitor the condition of the soil so that it does not dry out, but also does not turn out to be too moist. Germinating seeds should be in a room, the temperature in which ranges from 18 to 20 degrees Celsius.
Diseases and Pests
Cactus "Cereus" often becomes a "target" for various insects. Most often this is a scab, using plant juice, a spider mite, the appearance of which is symbolized by whitish spots with villi. We should not forget about the mealybug, as a result of the invasion of which red dots and even cobwebs appear on the leaves, which after some time are supplemented by icteric spots. The destruction of any type of pest is possible with the use of insecticides.
By the way, for prevention, it is worthwhile to treat plants with these agents once every 6 months.
Cactus "Cereus" often gets sick with rot. The appearance of this disease can be determined by soft brown spots located on the shoots. In this case, the rot will first have to be cut with a knife and then process the wound. Since putrefactive manifestations most often occur with improper irrigation, it will be enough to temporarily reduce watering, and then adjust the system.
How to transplant the Cereus cactus, see the video below.