Begonia: home care, diseases: why begonia leaves and buds fall
Houseplants Published: 01 June 2012 Reprinted: Last edits:
Begonia - a very popular indoor flower, and this has its own explanation: begonia has beautiful leaves and flowers, which is probably why people call it "girlish beauty". For those who value beauty in indoor plants, I advise you to definitely have a begonia. And I will try to tell you about the most common problems that arise when growing beautiful begonias, and how to solve them. For if you are informed, then you are ready to deal with the problem.
Home begonia care
What to do if begonia leaves curl? If only the lower leaves of the plant dry and curl, then this may be a natural process of withering away of old leaves, but if the leaves darken and dry throughout the begonias, you should start worrying.
Watering should be moderate: don't overdo it, but also don't let the potted begonia soil dry out. Curling leaves in begonias can be a sign of insufficient soil nutrition, which means it's time to feed the plant.
How often to spray begonia? Begonia loves moist air, but reacts sharply to excessive moisture in the soil in the pot. Begonia varieties with smooth leaves can be subjected to water treatments, and varieties with "fluffy" leaves are best not sprayed, but spray water around the flower, humidifying the air.
Where to place the begonia pot? Begonias feel great on windowsills with windows facing southwest and southeast.
What to do if dark spots and holes appear on the begonia leaf? Very often, if not properly watered, begonia leaves become stained with cold or hard water. And the holes can be a trace of a burn formed by a drop of water and a sunbeam.
Why do double begonias have non-double flowers? This mysterious phenomenon is quite understandable: female (pistil) flowers of a simple form and male (staminate) flowers develop on terry begonia. Male flowers are double in shape. Male and female buds open at different times. If desired, female non-double flowers can be removed, this will preserve the plant's strength, and it will bloom profusely with double flowers.
When should the first flowers appear on begonias? No sooner than the main stem will have 5-6 knees. In rare cases, begonia blooms earlier at home.
What to do if flowers darken and fall on begonias? This may be due to the ingress of water on the begonia buds.
What to do if powdery spots appear on the leaves? This can be powdery mildew or gray mold. Remove diseased leaves, treat the plant with a fungicide. Ventilate the room more often.
Why do begonias have leaves and flowers falling? There are several possible reasons: water got on the plant, the air in the room is too dry, or insufficient watering is to blame.
Begonia pests. Most often, at home, begonias are harmed by insects such as aphids and spider mites.
When should you transplant begonia? Spring is the best time to transplant begonias.
What soil is optimal for begonias? Ideal mix for begonias: turf, leaf, coniferous soil, peat and regular river sand.
Why do begonias drop buds? There are many reasons: waterlogging or vice versa - insufficient watering, drafts and even a change in the position of the flowerpot relative to the light source by several degrees, not to mention the movement of the flower from one room to another.
Why doesn't begonia bloom? Maybe your begonias don't have enough light, the room is low in humidity, it's too hot or too cold, or maybe you put it in a draft or overfed it with fertilizers.
If, despite all your efforts, the begonia wilts, root a twig just in case, perhaps your begonia is saying goodbye to you.
In addition to powdery mildew, tuberous begonia is affected by diseases such as gray rot, ring and bacterial spots.
causes the fungus botrytis, which is ubiquitous, but activates in damp warm weather, forming white watery spots with a gray bloom on leaves, flowers and apical shoots, which eventually become weeping spots of rot. As a result, the stems break, the leaves turn black and curl, the flowers and buds become covered with mucus. When the first signs of gray rot appear, the plant is sprayed with a 1% solution of Bordeaux liquid or a soap-copper solution of 2 g of copper sulfate and 20 g of laundry soap per 1 liter of water. If the disease progresses, you will have to spray the begonia with a 1% solution of foundationol.
manifests itself as small watery glassy spots on the lower surface of the leaves. It is useless to fight the disease, therefore, the affected specimens are destroyed, and the soil in which they grew is disinfected. For prophylaxis, the plant is sprayed twice with an interval of two weeks with a 5% suspension of copper oxychloride.
is caused by the tomato virus and looks like yellow-green concentric lines on the leaves, turning into bronze spots and necrosis. Diseased plants should be destroyed, and as a preventive measure, do not allow aphids, thrips and other sucking insects that carry the virus to appear on the plants, and also remove weeds in a timely manner.
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Home begonia - pests, diseases and their treatment
On the pages of my blog, I have already talked about the beautiful begonia flowers, its types and varieties, how to properly care for it at home, how to propagate it, and today I will tell you about pests and diseases of begonia and how to treat them.
Like any living organism, plants, including begonia, are susceptible to diseases and attacks of various pests. What causes begonia to get sick?
Most often, diseases arise from improper flower care, wrong choice, soil treatment used when planting or transplanting a plant. The methods of dealing with diseases and pests are different - from the simplest methods to the most cardinal ones.
Sometimes it is enough to return the flower to its old place. And in some cases, it is necessary to carefully remove damaged leaves, parts of the rhizome, stem, and shoots. So, below you will find solutions to the problems that begonias most often worry about.
Diseases and pests
Begonia often suffers from powdery mildew.... This is a fungal disease that forms due to an excess of moisture. In order to prevent the development of this disease in time, you need to carefully examine the lower leaves and the core of the bush. It is these parts of the plant that are most vulnerable to disease.
If you find a problem, immediately stop watering the plant and remove any affected areas. This will stop the growth of the fungus all over the flower.
The main pest for Begonias is a red spider mite and aphid. In order to get rid of them, you need to spray the leaves with special preparations, and then put a bag on the plant so that it cannot pass air. This is necessary to enhance the effect of the plant.
If you do everything right, no pests for your plant will be scary.
Begonia flower is a very grateful plant... If you take care of it correctly and with all love, then the beauty, health and chic flowering of the plant will manifest in full force. They will bring brightness to your life and give you unforgettable moments of happiness.
Depending on the variety of terry begonia, it can differ in the structure of the root system into the following types:
tuberous - more suitable for planting at home
There are varieties with an ampelous type of plant and an ordinary one. The ampel variety is more suitable for planting on hedges or at home, since it will take up less space. If we take as a basis the classification of terry begonia of the famous specialist in the field of ornamental gardening V.V. Vorontsov, then the following main plant varieties can be distinguished:
- deciduous decorative
- beautifully flowering.
Deciduous begonias are common varieties and are most often used to fill in empty areas of the garden, and they are often planted in pots to decorate the windowsill and refresh the greenery of a private city apartment. Terry begonias are the most common among the last three varieties. It is worth taking a closer look at the most popular varieties.
It is a very common variety preferred by many experienced flower gardeners. It is distinguished by beautiful neat buds, which in their structure resemble camellia flowers. Thanks to the light terry on the edges, they look airy and very feminine. Flowers of this variety are an excellent option for decorating a site, therefore, they are most often used by landscape designers in their projects. Ever-flowering begonia, planting is carried out by cuttings. Maintenance is quite simple and does not require a lot of effort. The color of the bud can be any. The most common plants of this variety with white or pink flowers.
This variety has very delicate translucent buds. Together with terry cloth, they create an interesting impression. This variety is perfect for decorating a garden and a summer cottage, and will also attract admiring glances from guests. The bud color is bright, does not fade. They usually have a deep pink or light orange hue. The leaves are dark green, smooth, rather large, in combination with flowers they look very impressive.
This is a perennial shrub. It is the most suitable option for planting in large vases and flower beds. The flower is neat and medium-sized, also suitable for indoor cultivation. The buds are half-open, in appearance they resemble rose flowers. They look extremely attractive and are actively used to create a romantic mood. They are often used by designers to create the right atmosphere for large celebrations. "Queen" is represented by several subspecies, which can be of three colors - white, red or orange.
This variety will help create a bright accent on the site due to its large, rich yellow buds. Terry edges give them a special charm, thanks to which the plant is very popular with many summer residents. Yellow leaves have a neat appearance and are distinguished by a dark green color, which is in perfect harmony with the color of the bud. Most often, this variety is grown in spacious pots that decorate the site.
Fire Coral F1
In search of an unusual flower, experienced landscape designers recommend paying attention to the densely doubled annual Flame Coral F1. Its bud is distinguished by a bright fiery color that shimmers from light to rich orange.
Thanks to the large amount of terry, the flower looks more impressive and really gives the impression of a flower on fire.
Most varieties of terry begonias are great for growing not only in the open field, but also at home. Indoor begonia is unpretentious and quite easy to care for - you just need to create the necessary conditions for its growth and development.
Begonia: varieties, species, photos and names
The begonia genus includes about 1600 species, but only 125 of them and all kinds of hybrids are used for decorative purposes. Until now, there is no general system of plant classification, and in foreign and Russian-language sources, completely different variants of classifications are given.
Professor V.V. Vorontsov, Doctor of Agricultural Sciences, identified the following conventional types of begonias:
- decorative deciduous begonias
- shrub begonias
- tuberous begonias
- flowering begonias.
Deciduous begonias (decorative deciduous)
Deciduous begonia does not have a common aboveground stem, and long pubescent leaves immediately grow from a branched root. This type of begonias amazes with the beauty of its leaves, which have a variety of shapes and colors. The color of the leaves can be green, red, silver, yellow, white or brown. Leaves can be either monochromatic or multi-colored, with various spots and edges.
The most famous types and varieties of decorative deciduous begonias:
- Royal begonia (begonia Rex) (Begonia rex)
A hybrid species with rounded or oval leaves 30 cm long with jagged edges. Their coloration ranges from brownish pink to purple and violet. Begonia leaves are decorated with a white, silver or green border.
- Begonia Metallica (metallic) (Begonia metallica)
A plant with small (10-15 cm long) olive-green pubescent ovoid leaves, the edges of which are indented with cloves. The upper part of the leaves of this species seems to be covered with metallic pollen.
- Tiger begonia(Bauer's begonia) (Begoniabowerae)
A plant with medium-sized green serrated leaves of a heart-shaped shape and an animal pattern of brown or dark gray.
- Begonia Mason(Begonia masoniana)
A deciduous begonia that grows in New Guinea and is especially valuable for its unusual leaf pattern, reminiscent of the brown Maltese crosses. The length of the leaves can reach 20 cm, the leaves of old begonias acquire a characteristic silvery shade. Plant height usually does not exceed 20-35 cm. Flowers are medium-sized, light beige.
A species characterized by highly decorative maple-like leaves. The outer side of the leaves is painted in an intense green or olive color, the bottom of the leaves can be burgundy or bright red. A distinctive feature of this type of begonias are elongated fleshy leaf cuttings, densely covered with white or gray hairs. The height of the bush usually does not exceed 30 cm, in rare cases it reaches 50 cm. Cleopatra begonia blooms in January and February, then the plant throws out thin peduncles covered with groups of white-pink flowers.
- Collar begonia, she cuff begonia (Begoniamanicata)
A plant native to Mexico with a creeping stem and large, fleecy, light green leaves up to 30 cm in diameter, growing on long cuttings. Begonia got its name from a thick cuff of red villi that surrounds the stem just below the leaf. In winter, adult plants form about 5 peduncles up to 60 cm long, decorated with an elegant brush of bright pink flowers.
A South American species characterized by short, fleshy stems and glossy, rounded leaves that are green above and intense red below. The maximum height of the begonia bush is 35-40 cm. In the middle of summer it blooms with medium-sized pinkish flowers.
Photo by: Kor! An (Korzun Andrey)
Bush begonia has densely growing geniculate, branched stems that look like bamboo shoots. The plant is a bush with numerous side shoots. The leaves have a variety of shapes and colors. The flowers are beautiful and graceful. The root is thick and fleshy, not divided into parts. Bush begonia blooms all year round. Begonia varieties are both annual and perennial. The height of the bushes is from 10 cm to 2 meters.
Among representatives of this species of begonias, the following types are very popular:
- Coral begonia (Begonia corallina)
A plant with erect, bare stems, reaching a length of 0.5-1 m. The obverse of the oblong ovoid leaves has a dark green color with silvery specks, and the reverse is brownish-red. Dense inflorescences of coral begonia consist of simple small flowers.
- Fuchsia begonia (Begonia fuchsioides)
A plant with highly branching high stems (up to 1 m) and large oval green leaves with a glossy surface. Rare hanging flowers of fuchsia begonia are colored in all shades of red.
Tuberous begonia has a tuberous rhizome, fleshy translucent stems up to 80 cm high, simple or double flowers, similar to roses, carnations, camellias or peonies. Flowers can be both small and large, single and in inflorescences, with a diameter of 3 to 20 cm. Plants are herbaceous, shrub or ampelous. The leaves are heart-shaped; they can be either fluffy matte or glossy, flat or corrugated. The color of the leaves contains all shades of green, from light to dark. The bloom of tuberous begonia is long and very beautiful, lasts from May to October.
Popular varieties of upright tuberous begonias:
- Begonia Pikoti Harlequin (PicoteeArlequin)
Semi-spreading plant no more than 0.25 m high with large (up to 12 cm in diameter) double yellow flowers, which have a bright red border. The leaves are green, jagged.
- Begonia Bouton de Rose (Boutonderose)
A short, compact shrub with double, rose-like flowers reaching 18 cm in size. The petals are white or pale pink. The leaves of Bouton de Rose begonias are green, large, with a wavy edge.
- Begonia Duck Red (Darkred)
A low-growing bush with semi-spreading stems and large finely toothed green leaves. The double dark red flowers of this begonias do not exceed 10 cm in diameter and resemble a peony.
- Begonia Crispus Marginata (Crispamarginata)
a sprawling plant with green leaves that have a purple edging. The height of the begonia is 15 cm. The flower is delicate yellow or white with a red border and curly edges.
Ampel varieties of tuberous begonia:
- Begonia ampelous Is a tuberous type of begonia with long, flowing stems, strewn with bright flowers on long flower shoots. The flowering period lasts from early spring to late autumn. One of the most popular varietal groups of ampelous begonias is the Chanson series, which amazes with a variety of colors and shades. Noteworthy are the following varieties of ampel begonias:
- Rocsana - flowers are large, double, orange
- Kristy - flowers are white, double
- Girl - flowers are semi-double, pale pink.
- Bolivian begonia(Begonia boliviensis)
a type of ampelous begonia, the shoots of which first grow upward, and upon reaching a height of 30 cm, elegantly fall down in the form of a multi-tiered flower cascade. The following varieties of Bolivian begonias are especially popular:
- Santa Cruz Sunset F1
strong, sprawling plant, forming drooping shoots, up to 40 cm long.From the beginning of summer to October, it is covered with many red-orange, fuchsia-shaped flowers
- Copacabana F1
hardy and unpretentious creeping plant, during the flowering period, strewn with many bright red bell-shaped flowers
- Bossa NovaF1
a sprawling plant with shoots up to 50 cm long, from spring to frost covered with fuchsia-shaped flowers of red, orange, pink or white.
Flowering begonia (beautifully flowering, decorative flowering)
This group includes begonias with very beautiful simple and double flowers of various colors. The most popular are the following types and varieties of begonias:
- Ever-flowering begonia(Begonia semperflorens)
It unites an extensive group of varieties that have a wonderful property to bloom all summer, regardless of weather conditions.
The most famous varieties of ever-flowering begonia:
- Baby wing
A series of vigorous plant varieties with green and bronze leaves and monochromatic or variegated flowers of various colors.
A series of begonias with original green leaves bordered by a thin red stripe and with a wide variety of colors.
Abundantly flowering low bush with brick-colored leaves and simple flowers typical of begonia color.
- Begonia Elatior(Begonia elatior)
Hybrid variety from England, obtained by crossing tuberous begonia and Socotran begonia. Due to the ability of year-round flowering, this plant received the name winter begonia (lat. Begonia hiemalis). It is a compact shrub, about 40 cm high, with a thick stem and bright, glossy leaves about 8 cm long, in the shape of an asymmetrical heart with serrated edges. Numerous simple or double flowers form multi-tiered inflorescences growing on long pedicels. Elatior begonia varieties, depending on the height of the bush, are divided into 3 types:
- high (about 40 cm) (for example, Louise, Renaissance, Schwabenland varieties)
- medium (about 30 cm) (for example, varieties Kyoto, Annebell, Bellona)
- undersized (no higher than 25 cm) (for example, varieties Scharlach, Lachsorange, Piccora)
Begonia Elatior cultivar Renaissance Put
- Begonia Gloire de Lorrain(BegoniaGloiredeLorraine)
Like the begonia Elatior, it belongs to the winter-flowering varieties. It was bred in France in 1891 by crossing Begonia socotrana and Begonia dregei. This rather sprawling, low plant is distinguished by rounded glossy leaves of light green color with a red spot at the base. Begonia bloom begins in the fall and continues throughout the winter. Simple flowers form drooping pink brushes. The most popular varieties of the group:
a sprawling, showy bush covered with intense pink flowers
low-growing plant with deep pink flowers growing on short flower shoots
a Swiss variety with many small, pink flowers.
Begonia Gloire de Lorraine
Diseases can also provoke drying and further leaf fall. Most often, they develop when the rules for caring for a flower are violated.
The most common ones are:
- Anthracnose. This fungal disease develops at a high humidity of about 90% in combination with a high temperature of + 27 ... +29 degrees. An increased level of soil acidity and a lack of potassium and phosphorus can also provoke the development of anthracnose. The disease manifests itself as brown spots with a dark brown border along the edge. Subsequently, they grow and merge into a single whole, which prevents the movement of nutrients. Against the background of the disease, croton leaves begin to dry out, lose turgor and, as a result, may fall off. For treatment, it is recommended to treat the plant with Fundazol, Antracol, Euparen.
- Root rot. This disease can also be the reason why Croton abruptly sheds its leaves. It develops with excessive watering and cold content. Low acidity of the soil can be a provoking factor. The disease can be recognized at the initial stage by the sharp yellowing of the leaves, after which they descend and become lethargic. For treatment, it is necessary to pour Croton with Fitosporin-M or Previkur.
With root rot, the plant can be saved only at the initial stage of the lesion.
Important! For the treatment of fungal diseases, it is necessary to process croton 2-3 times, alternating with fungicides.
How to preserve begonia tuber in winter
In their homeland, tuberous begonias tolerate seasonal climate changes well. But in our conditions, they need a period of rest. Therefore, after the first frost, the plant is dug up and, together with a lump of earth or in pots, is transferred to the house. Watering is almost stopped. After about a month, the aboveground part of the plant dies off, after which the tubers are taken out of the ground and laid out in boxes, sprinkled with sawdust. In this form, begonias are stored in the basement (or on the lower shelf of the refrigerator at t + 1-10 ° C) until spring. The substrate is moistened from time to time.
The most common diseases are powdery mildew and gray rot.
That the begonia is damaged powdery mildew determined by the appearance of a whitish bloom on the leaves. For the treatment of this disease, solutions of Morestan, Fundazol or a soap solution of copper sulfate are used.
The solution is prepared as follows - for a liter of warm water, 20 grams of soap (tar or household) and 20 grams of copper sulfate. Everything is well mixed until the substances are completely dissolved in water and the plant is sprayed with this solution. This solution is also called Bordeaux liquid. This liquid is effective against gray mold.
Gray rot manifested by the presence of gray damp spots on the leaves. If you do not carry out treatment, then over time, the leaves begin to rot, dry out and fall off. The reason for the appearance of gray rot is considered to be improper watering, high soil moisture, lack of proper drainage of the liquid.
They treat gray rot by adjusting watering and spraying with special preparations.
Beautiful, well-groomed and healthy begonia will be an amazing decoration for your home and garden!