Why does rosemary dry in a pot at home, possible care problems, as well as possible diseases and pests

Rosemary is an evergreen shrub with a pleasant aroma that is grown in open ground and indoors. This plant is not capricious in the garden, but when grown in a container, the shrub is sensitive to any changes in care. Diseases of rosemary indoors are not uncommon and are often the result of care errors. Treatment methods depend on the signs noticed, since there are few possible diseases or pests. By carefully assessing the condition of the bush, you can understand why rosemary dries in a pot at home and how to help the plant recover.

Features of container growing

When rosemary dries out in a pot, this is evidence that the plant’s care needs are not being met. If you do not create comfortable conditions for the shrub, it quickly loses its decorative properties and useful qualities. The best place to grow this fragrant plant is a greenhouse or winter garden, but it is also possible to provide a rosemary bush with suitable conditions and microclimate in an apartment.

The main thing is the correct location of the bush; it must receive enough light and therefore it is placed on the windowsill of a window facing south or east. Fleshy, juicy foliage and strong shoots will form only with sufficient light levels.

Other features of container growing, without which rosemary leaves dry out, are as follows:

Even in the southern regions, the plant on the windowsill does not receive enough light and must be illuminated with a phyto-lamp. In summer, rosemary needs 16-18 hours of daylight, and in winter – about 6.
Sometimes the bush dries out due to insufficient air humidity, so it needs to be sprayed with a spray bottle once a day and a container of water placed next to it.
In order for the substrate to better retain moisture, pour expanded clay into the tray of a flower pot or directly onto the surface of the soil.
It is necessary to water after the top layer of the substrate has dried, do not wait until the soil in the pot dries completely.
Rosemary should be kept at a temperature of about +6˚ C in winter so that the plant has a dormant period.
The plant is turned toward the light twice a day - this will prevent the bush from becoming one-sided, since the crown develops slowly in the shade.

Attention!

If the reason for the deterioration in the appearance of the rosemary bush is due to care errors, then it is enough to provide the plant with the necessary amount of light and heat for it to recover.

Reasons for rosemary drying out in a pot

Rosemary is a spicy exotic plant native to the Mediterranean, which is rarely grown indoors. This may be due to the fact that the bush requires attention and constant care.

Sometimes the spice fades, its leaves dry out, and its attractive appearance is lost. If no action is taken, the plant dies. To understand why rosemary dries out in a pot at home, you need to establish the exact reasons for this phenomenon.

Very often the culprits are diseases and pests, and failure to follow the rules of care.

Features of growing a plant

The best option for growing is a winter garden. Rosemary does not fit well in the room. Following simple rules will help the herb adapt to home conditions. These include:

Lighting. In order for the bush to develop properly and produce a sufficient amount of essential oils, good lighting is necessary. The duration of daylight in summer should be at least 16 hours, in winter - 8. In winter, when daylight hours are short, an electric lamp compensates for the lack of daylight.
Accommodation. It is better to place a pot of rosemary on the south or south-east window sill. In summer, it is recommended to take the pot out onto the balcony, remembering to protect it from drafts.
Humidity. Under natural conditions, rosemary grows in places with high air humidity. Therefore, your home flower should be sprayed regularly. In summer, the bush is sprayed several times a day and the room is ventilated several times.
Temperature conditions. In the autumn-winter period, the plant stops its growth, so the comfortable temperature range will be between 7-15ºС. During the period of active development (spring, summer), a constant temperature level is maintained - 20-25ºС.
Watering. For rosemary, drying out the soil is not as dangerous as overwatering it. For irrigation, use only well-settled water at room temperature. In winter, water no more than 2 times a week, in summer - 1 time a day.
Feeding. Feed only during the period of active growth with organic fertilizers for indoor flowers. In winter, fertilizing is not carried out. For active growth, the plant needs calcium.
Trimming. The procedure is mandatory for the formation of the correct bush. Pruning is carried out every spring. Very long and thick shoots are trimmed. To make the bush grow lush, pinch the top young shoots.

Spice growing in a room releases volatile biologically active substances - phytoncides, which purify the air in the room, suppress the growth of pathogenic microorganisms, and eliminate unpleasant odors.

Only one variety of rosemary is suitable for home cultivation - fragrant, or medicinal.

If the growing rules are followed, the plant is transformed into a tree up to 60 cm long; with a negative influence, the appearance and usefulness of the spice deteriorate.

Why does rosemary dry in a pot at home?

Spice grown at home is very rarely subject to disease and parasite invasion. This is due to the fact that rosemary has a pronounced aroma and antiseptic effect.

Pests, diseases

Sometimes, with proper care, rosemary is still susceptible to insect attack. Possible pests:

Aphid. Leaf aphids feed on plant sap. She is not interested in old rough leaves; she sucks the juice only from young leaves. The insect is active in the summer.
Whitefly. This small white butterfly sucks the juice of the spice. The insect appears when there is a combination of high humidity and temperature.
Spider mite. The sucking insect appears at high temperatures and dry air. You can tell that a parasite has appeared by looking at its webs and through points.

Harmful insects weaken the bush and reduce its immunity. Therefore, pests need to be dealt with immediately after they are detected. In this case it is necessary:

dilute the soap solution and wash the leaves with it;
spray the bush with wormwood decoction (take 100 g of dry wormwood per 400 ml of boiling water);
spray with a strong tincture based on onion peels, garlic or chamomile.

Most often, spices that are taken out into the fresh air in the summer are attacked by insects.

If the infection is severe (the tips of the leaves turn black and dry out, when the rosemary has dried out and is severely crumbling), then they resort to the help of insecticides (Intavir, FAS, Karbofos, Strela, Aktara). You can spray the bush with a solution of copper sulfate or colloidal sulfur. After treatment with chemicals, rosemary leaves are unfit for consumption.

Rosemary diseases

In indoor conditions, the spice is highly resistant to diseases. When high humidity and low temperature are combined, the plant is affected by downy mildew (downy mildew).

The infection is caused by several lower fungi of the peronosporaceae family, which parasitize living plants. The infection is often transmitted by sucking insects (aphids are a common carrier).

Fungal spores can also enter with water when watering.

This fungal disease manifests itself as a powdery white coating on the foliage. Over time, liquid droplets resembling dew are released on the surface of the leaf plates.

A diseased plant's leaves curl and then fall off. At the beginning of the pathology, the affected parts are removed and the spice is transplanted into a disinfected pot with new soil.

It is impossible to save a bush in case of severe damage, when the leaves of rosemary turn black.

Disorder of care

The spice sometimes reacts to improper care and maintenance by drying out the foliage and then falling off. Why does rosemary dry out in a pot?

irregular watering (usually excessive waterlogging of the soil, which leads to rotting of the root system);
insufficient air humidity (especially in winter during the heating season);
high air temperature (above 25ºС);
poor lighting in spring and summer;
applying large amounts of fertilizers and not following the feeding regime.

To prevent the development of diseases in the soil, you need to choose a spacious clay pot for rosemary. Root rot is prevented with the help of artificial drainage - expanded clay or small pebbles are poured onto the bottom. For growing, it is better to use slightly alkaline or neutral soil.

Rosemary is a spicy and aromatic plant that can be successfully grown at home, but only if the necessary climatic conditions are created. You need to take special care of the bush in winter, when its defenses are greatly weakened. During this period, the leaves often dry out and fall off.

Source: https://zemeljka.ru/pochemu-soxnet-rozmarin-v-gorshke.html

Plant care requirements

When rosemary falls off, the problem most likely lies in a violation of the agricultural technology of its cultivation. When kept in containers, it requires increased attention. When the growing conditions of a plant do not meet its requirements, the tips of its leaves first turn black, and then dry out and fly off. This condition of the rosemary bush can be caused by the following:

excessively high dose of fertilizers used;
attack by harmful insects;
insufficient air humidity in the room;
increased air temperature in the room against the background of insufficient lighting;
insufficient or excessive watering.

Rosemary withers, dries, flies around and turns black also due to temperature fluctuations. Because of this, even if you want to give the shrub more light, it is undesirable to take it out onto the loggia in late autumn, winter and early spring. Such changes negatively affect the condition of the plant’s root system and it begins to experience stress. It is normal for rosemary leaves to dry out after it has been dug out of open ground and moved to a flower container for the winter. This reaction is the plant’s adaptation to changed conditions.

Rosemary: care and conditions of detention - DISCUSSING.

#1 vasilina

Hello! I have rosemary growing. I water it often, and when the top layer dries, I spray it. But the lower branches dried up anyway and only the upper ones remained. What should I do, I'm afraid it will dry out all over. thank you in advance.

Rosemary can dry out if the pot is too small. Rosemaries are fast-growing plants, so you need to make sure that the roots are given enough space. My rosemary plants stand near a hot radiator, I don’t spray them, it’s good if I don’t forget to water (they tolerate drought well), but at the same time I often replant them, about once every six months. In general, rosemary is a fairly unpretentious plant. Maybe you're filling it up?

#2 Natali

Could you tell us in more detail what conditions you keep it in (temperature, lighting)? Were you looking for pests? Although they write in books that it is not affected by them, my first bush died from the whitefly.

I have rosemary near the south window behind the curtain, not far from the radiator, at room temperature about +18. Lighting is solar and electric in the evening. I wasn't looking for pests. It seems to be undamaged by anything, with the exception of dry twigs that are already falling off.

vasilina, the most common pests of indoor plants (mites, whiteflies, scale insects), unlike many garden pests (beetles, slugs, caterpillars), do not leave any noticeable damage on the leaves of plants. But they can very quickly destroy almost any plant. Therefore, any sick plant should always be carefully inspected for pests (and you need to know exactly what you are going to look for and where. Also, the lower branches of rosemary can dry out from rotting roots or from the heat of heating devices falling on the leaves of the plant.

#3 Tananda

A little rosemary has settled in my house. And now its leaves are turning black. What could be causing this? It stands on my window in the kitchen (the sun doesn’t get there). I water it after the soil is completely dry, spray it, the pot fits its roots. After buying it, I didn’t replant it, and I don’t see the point. I bought it from a man who grows plants himself and prepares soil and fertilizers for them himself.

Hello. If the leaves dry from the tip to the beginning of the leaf, it means that it is underwatered. If they turn black from the place where the leaf is attached to the stem, then the problem is somewhat more serious. My rosemary, if I water it after it has completely dried (and this moment is quite difficult to determine), the leaves also turn black and shrink, starting from the tips. So, to solve this problem, water a little more often, provided that the plant has a growth period.

Thank you. It turns black from the tip. This means I will water more often.

#4 Felce

I have rosemary growing outside, last year it withstood -15 - it is a strong plant and is not afraid of anything, loves the sun and fresh air. Rosemary is a plant for open ground. Soil with good drainage without overwatering, partial shade. After the transplant he suffers. There are a lot of people on the forum, cat. They understand plants and will advise how to help the plant. The most important thing is that the roots do not rot

and there is no need to spray it on it, it seems to me, but in the spring on its balcony

Soil and pot

You may be interested in: How to grow rosemary in open ground and care features How to grow rosemary in an apartment The benefits and harms of rosemary leaves

The right container and soil mixture for rosemary is an important point, because if they are not suitable for the bush, it will gradually wither. The rhizome of the plant is branched, so the flower container for it needs to be spacious - deep and wide. Due to the increased need of the root system for oxygen, the pot must be made of porous material. It is optimal when the container is made of clay without any coating. When the rosemary bush is young, a flower container with a diameter of 20 cm is enough for it.

Ordinary soil from the garden is not always suitable - the bush requires a certain soil mixture so that the rosemary in the pot does not dry out. It is better to buy a ready-made substrate (lime-based, crushed stone) at a flower shop. But it is possible to create the soil yourself. A simple version consists of 3 parts - leaf turf, peat mixture and humus (ripened compost) mixed with crushed stone in equal proportions. There is another option for a soil mixture suitable for rosemary:

humus – ½ share;
turf soil without roots - 1 part;
leaf turf – 1 share;
peat mixture – ½ part;
river sand – ½ share;
humus or compost - ½ part.

Attention!

Before placing the bush in a container, the substrate in it is thoroughly spilled. For the first 5 years, rosemary will need to be replanted into a container 2/3 larger than the previous one every spring.

Illumination

Regardless of the natural light on the windowsill where the rosemary bush is located, the intensity of the light it receives will still be less than when it is grown in open ground. This fragrant plant is light-loving and therefore its minimum requirement for daylight hours is 6 hours, and it does not depend on the current season.

Diseases and pests when growing at home

Diseases and pests attack rosemary bushes at home more often than when they are grown in open ground. The plant is quite problematic when grown in containers; its leaves may wither, dry out or turn black. The reason for the deterioration of a bush is not always due to disease or attack by harmful insects. If rosemary has dried out, what should you do to revive it:

normalize watering, since most likely the soil moisture is insufficient;
feed, there may be a lack of nutritional components;
if rosemary leaves turn black and dry, you need to eliminate drafts;
protect the plant from temperature fluctuations.

A whitish coating on the foliage may be the cause of a lack of heat due to high humidity in the room or be a sign of powdery mildew. Sometimes a plant acquires this appearance due to damage by spider mites. The bush gets sick when grown in containers mainly in winter due to a combination of high humidity and cold. But rosemary is mostly attacked by pests in the spring-summer season or early autumn.

Reference!

When a rosemary bush does not bloom for a long time, in winter the plant is left at a temperature of +14...+17˚ C, provided with additional light and slightly reduced the amount of watering.

Cobweb

This mite feeds by sucking plant juices. Signs of its presence are through pinholes on the foliage and a thin but very sticky web on the bottom of the leaf plate. This insect attacks weakened vegetation. Optimal conditions for the development of spider mites are low indoor air humidity and elevated temperature.

Pests and diseases indoors

It is known that rosemary has not been shown to be prone to disease. And yet, too often one hears that its leaves dry out, despite all the efforts of the owner. This means one thing - the bush is sick or damaged by pests.

Mildew

If overwatered, it may develop downy mildew. In case of severe damage, when the leaves have already turned black and fallen off, salvation is impossible. At the very beginning of the disease, sometimes it is enough to normalize the watering regime - and the problem is eliminated.

Spider mite

This insect sucks juice. Loves dry air and high temperatures. As soon as through dots and cobwebs on the leaves on the back side are noticed on the leaf blades, the rosemary is infected with a mite.

But for the owner, this is a signal that the conditions of the plant have been violated. It is enough to correct the situation and the pest will disappear.

You can, of course, spray with insecticides, but this will have little effect - they will not affect the laid eggs.

Aphid

If this pest has been discovered, you need to prepare a solution of laundry or tar soap and wash the rosemary (its above-ground part) with it. At the same time, you need to take care to protect the soil - place the pot in a plastic bag and tie it tightly.