Anthurium, brown spots on the leaves - what to do, rules of care

Anthurium is a tropical epiphyte, ideal conditions for it are tropical rainforests. Therefore, in indoor conditions, this plant is capricious, very demanding on the soil, watering regimes, temperature and air, but this does not stop exotic lovers.

Sometimes the flower is sick, spots appear. We hope this article helps you figure it out.


  1. Proper care rules
  2. Difficulties in the growing process
  3. Care errors
  4. Infectious diseases and pests

Proper care rules

Anthurium is the record holder for the duration of flowering - under good conditions it can bloom for three or more months. The plant is spectacular, bright, grows well and quickly, under certain conditions.

Since anthurium comes from tropical forests, it is necessary to organize for it:

  • warmth and light
  • soil and good nutrition

Proper watering

So, in order: warm, warm and warm again! Below 18 degrees - this is already the North Pole for him, in addition to the air temperature, the temperature of the soil is important - it should not be lower than the environment. If the flower is on the windowsill, then in winter, fit a piece of cloth, cardboard or foam under the planter so that the roots do not cool. Direct sunlight causes burns, it can grow in the shade, but will not bloom. He needs diffused light.

The soil

Special soil for anthurium is not for sale, so you need to prepare it yourself:

  • take equal parts of the soil for the azalea,
  • peat and baking powder,
  • add a little pine bark and charcoal.

Soil with an acidic environment is suitable for Anthurium, the soil for azaleas just meets these requirements. River sand is best suited as a baking powder, but you can buy any other one in the store (perlite, vermiculite). To protect the roots from decay, drainage is needed - at the bottom of the pot there is about a layer of 2-3 centimeters of expanded clay, broken brick or small stones.

Top dressing

Anthurium requires good nutrition - give it liquid fertilizers once every 2-3 weeks, but do not overdo it, otherwise it will turn yellow. To do this, take the fertilizer dose recommended in the instructions three times less.

In winter, feeding is reduced or not carried out at all. Once a month, add citric acid at the tip of a knife to the water for irrigation to slightly acidify the soil.

The soil should be breathable, there should be no stagnant water in it. When stagnant, the roots quickly rot and the flower can die in a few days. The soil should be moistened, but not wet, water from the pan should always be poured out. Watering should be done after the topsoil is slightly dry.

Difficulties in the growing process

Not all amateur gardeners manage to grow anthurium the first time. A flower bought in a store at home begins to wither, if all the leaves are damaged, then the flower almost always dies.

To prevent this from happening, you need the correct transplant:

  • It is better to transplant immediately after purchase.
  • Transfer only by transshipment method

Many do not advise immediately replanting plants purchased in the store, but in vain. The roots are cramped in such small pots, the earlier the transplant is, the faster the flower will get used to the new conditions.

Most often, the plant suffers from improper care of it, especially the humidity of the air. The optimum humidity in the room should be at least 70%, but it is very difficult to achieve this figure.

Usually, in living quarters, it barely reaches 30%, which, by the way, affects not only plants, but also people, especially small children. Anthurium is very fond of spraying, while the water should not be cold, it is best suited at room temperature or slightly hot.

While you spray the water, it will have time to cool down to a comfortable temperature. This should be done every day. When spraying, you need to cover the peduncles, it is not desirable that water gets on them.

Another difficulty is to organize the correct watering so that the flower does not dry out and does not rot. Some hobby gardeners recommend covering the soil with moss or replacing the entire soil with it. It has a lot of nutrients, it keeps moisture well, while preventing the formation of mold and rotting of the roots.

Subject to the growing conditions, anthurium grows strong, rarely becomes infected with infections or pests. And if this happens, then with the right treatment, it quickly recovers.

Care errors

Healthy anthurium always with bright, juicy leaves, grows well and blooms in time; if you have such an anthurium, then you are doing everything right. If the flower is not satisfied with something, then damage may appear.

Brown spots can appear if the plant:

  • little heat - first brown dots appear, then they expand, forming spots, a draft also leads to a similar reaction
  • direct sunlight causes burns, the leaves may first turn yellow, then darken
  • little water and dry air can also cause stains, dryness can even cause holes
  • a lot of water - the roots suffer from this, they cannot breathe, this affects the whole plant, spots appear, the roots begin to rot and all this can end badly
  • there is not enough nutrition - deformation, yellowness joins the spots; with a lack of nitrogen, the lower leaves turn yellow, young leaves grow weak, pale; lack of sulfur - the upper leaves turn yellow, excess - turn yellow along the edge, then the shade becomes brown, and they curl; lack or excess of manganese appears in the form of pinpoint yellow spots, gradually the leaf wrinkles and falls off.

In order to cure a flower, you need to eliminate all adverse effects and create comfortable conditions. If there is little heat, then the flower should be placed in a warmer place, but not next to the battery, if it is dry, water and spray more often, wipe off dust.

Brown spots most often appear from hypothermia and overflow.

If you realized that you watered the plant too much and this caused brown spots on the leaves of the anthurium, what to do:

  • stop watering and spraying, it is better to just wipe the leaves of the plant with a damp cloth
  • observe, if spots appear in large numbers, then the roots are rotten, and a transplant is required

Prepare the soil, treat it with a solution of potassium permanganate or fungicide. Gently remove from the pot, clean the roots from the ground, cut off all damaged (healthy roots are white and elastic), treat the sections with charcoal (activated pharmacy is suitable), dry for an hour. Plant in new soil, cover the top with moss. At first, spots may still appear, but not so intensely. Water rarely and a little, the flower tolerates drought better than overflow.

Infectious diseases and pests

But sometimes it can happen that anthurium has brown spots on the flowers, leaves appear even if all growing conditions are met. Then it is worth suspecting infectious diseases. Most often, the flower is affected by fungal infections, less often bacteria and viruses.

Fungal diseases that cause brown spots on the leaves of anthurium and how to treat:

  • septoria - a fungus causes the disease, with this disease the spots are dark, along the edges with a lighter or yellow tint. All affected leaves must be removed and treated with a fungicide. Fitosporin is suitable: 1.5 g per liter of water, spray, repeat after 10 days
  • fusarium - the causative agent is a fungus, infection is usually through the soil, the disease spreads from the roots, then the stems and leaves are damaged. You need to treat it with a fungicide, the disease is dangerous, often all the measures taken do not lead to recovery

Another group of diseases is parasitic:

  • aphid - it can be found when examining the lower leaves, aphids suck the juices from the plant
  • scale insect - a small pest, covered with a shell on top, affects the upper part
  • thrips - feed on the cell sap of plants, the leaves gradually turn yellow, fall off
  • ticks are one of the most common parasites, the leaves turn yellow when damaged, dry out, the whole plant can die if the ticks are not destroyed

On close inspection of indoor plants, parasites are not difficult to notice. To get rid of them, the flower is washed, parasites are removed and treated with an insecticide, for example, Fitoverm or Agravertin.

Sometimes the flower begins to hurt due to poor conditions of detention, and subsequently an infection or parasites joins. A healthy plant has a good immune system, the best disease prevention is the creation of optimal conditions for this exotic plant.

What mistakes in caring for a plant lead to the appearance of spots, what conditions anthurium needs for a good life, how to properly prepare the soil and how to get rid of pests and fungi, you can see when watching the video:


Watch the video: The Easy Peace Lily Plant Care Guide for Beginners. Houseplant Resource Center (January 2022).