Feeding indoor plants

Feeding indoor plants

Because indoor plants "live" in a small pot with limited nutrients, they need to be fed periodically to maintain plant health. To prevent flowers from experiencing a deficiency of nutrients, you need to choose complex dressings rich in all minerals and trace elements.

Basic rules for plant nutrition

One of the foundations of plant care is that fertilizers are stopped during the dormant period, that is, from autumn to spring (there are, however, exceptions, but they are rare). Fertilizers are also contraindicated if the plant is sick or pests have appeared on it. You should not fertilize the plant immediately after transplanting, since a properly selected soil is rich in all trace elements.

After transplanting, it usually takes about 3 months, after which the land often begins to deplete and the plant requires additional nutrition. When buying a flowering plant, it is also better not to apply any fertilizers for the first time, since plants grown by an industrial method usually go on sale, in which case there are more than enough minerals and other substances in the soil. It is recommended to start feeding after about a month.

The plant must be watered thoroughly before fertilizing. In no case should liquid top dressing be applied to dry soil, as this is fraught with a serious burn of the roots. After watering, 2-3 hours should pass, then you can fertilize, and it is recommended to water again after fertilization.

Top dressing of indoor plants. General recommendations

Along with the usual fertilizer, which is applied to the soil, foliar (or foliar) top dressing is also used. It is used not instead of root feeding, but as an additional procedure. To carry out such fertilization, the same funds are required, only in smaller proportions.

If the air is not humidified enough, in addition to foliar feeding, the plant is sprayed. It is important to remember that with daily spraying, foliar dressing is performed infrequently - once every 5-7 days, after which, about the next day, they are sprayed with clean water.

Nutrient Deficiency Symptoms

If the plant grows too slowly, and its leaves are very small and have a pale green color, most likely there is not enough nitrogen. To eliminate the deficiency of this substance, ammonium, potassium, calcium nitrate, ammonium sulfate, urea can be used for fertilizers. With the yellowing of the edges of the leaves and their further falling off, a lack of phosphorus is possible. You can feed the plant with it by fertilizing with simple or double superphosphate, phosphate rock.

If a strong susceptibility to fungal diseases is added to the yellowing and shedding, this may indicate a potassium deficiency. In this case, potassium salt (40%), chloride, potassium sulfate are indicated for fertilization. Plants with a lack of zinc are also more susceptible to fungal diseases. Weak root and stem growth, frequent dying off of young leaves can mean a lack of calcium. This requires feeding with calcium nitrate or sulphide. If the plant lacks magnesium, this can manifest itself as slow growth, blanching of the leaves, and delayed flowering.

With a light yellow shade of the leaves, the plants need to be fed with iron, for which iron sulfates or chlorides are used. If the plant is not leafy enough, it needs fertilizing with manganese sulfate. A plant that lacks boron blooms poorly, does not bear fruit, the growing point often dies off, and weak root growth is observed. In this case, you need to fertilize with boric acid.

Dull, yellowish coloration, leaf spots, curled leaf tips, or falling flowers may indicate molybdenum deficiency, which can be eliminated by feeding the plant with ammonium molybdate. An excess of certain substances can also be harmful. For example, a plant can inhibit a large amount of copper, as a result, it gradually withers.

Houseplants are limited in their supply of nutrients by our actions. Their growth and development depends on how we water them, what we plant and when we transplant them.

Often, feeding indoor flowers becomes a matter of life and death.

To conquer life, you need to know how to properly feed indoor plants and apply this knowledge in practice.

We will help you understand the intricacies of proper feeding and tell you the secrets of experienced florists.


  • the plant grows slowly, the leaves are pale green and small - lack of NITROGEN. Fertilizing the plant with ammonium, potassium or calcium nitrate, urea or ammonium sulfate.
  • the edges of the leaves turn yellow and then fall off - lack of PHOSPHORUS. Phosphate rock, simple or double superphosphate will help.
  • yellowing and dropping of leaves is accompanied by susceptibility to fungal diseases - lack of POTASSIUM. Necessary sulfate or chloride potassium, potassium salt (40%).
  • frequent fungal diseases often indicate a lack of magnesium.
  • sluggish growth of shoots and roots with frequent death of new leaves - lack of calcium. It is necessary to feed with sulphurous or calcium nitrate.
  • poor growth with delayed flowering or blanching of leaves - lack of magnesium.
  • light yellow tint of the leaves - lack of iron. Top dressing with sulphate or ferric chloride.

Weakened calathea with new paler leaves


  1. During the dormant period, for most species from November to March, it is not recommended to feed home plants.
  2. If the plant is affected by pests or sick.
  3. Before transplanting a plant in 2-3 weeks and after it for the next 2-3 months, there is no need for additional nutrients in indoor flowers.
  4. If you bought a flowering plant in a store, then there is no need to feed in the first month.
  5. In hot weather - the plant spends a lot of energy on adapting to high temperatures, and it will be difficult to absorb fertilizer and it can burn the roots.

IMPORTANT! Only a healthy plant during the active phase of development will assimilate fertilizers as efficiently as possible.

Rules for feeding indoor flowers: general recommendations

  1. The need for various minerals depends on the phase of plant development. At the beginning of growth, plants need more nitrogen, before flowering and during it in phosphorus and potassium.
  2. Young indoor flowers (up to 2 years old) and weakened or sick plants are fed with fertilizer in a lower concentration than adult and healthy plants.
  3. Fast-growing houseplant species need more minerals, and slow-growing ones require less.
  4. Potted home flowers need to be fed more often, and tub flowers less often.
  5. It is recommended to feed flowering houseplants at least two times: 1. at the time of planting flower buds. 2. during the development of buds (budding).
  6. To dilute the fertilizer, it is better to use a glass container, and it is better to stir it with plastic tools and in warm water (2-3 degrees above room temperature).
  7. Before feeding, the plant is watered and only after 2-3 hours fertilizer is applied and watered again. Top dressing in a dry soil mixture can burn the root system.

LIFEHACK: In order to calculate the approximate weight of fertilizer without weights, know that a teaspoon fits about 3 grams, in a dining room - 10 grams, and in a matchbox 25 grams of dry fertilizers.

Listen to the article

What is contained in these fertilizers, and why do plants need them so much? Almost every fertilizer is based on three components important for plants: nitrogen, phosphorus, potassium.

Every plant has individual needs for these minerals.

It is very simple to nourish the soil with ready-made mineral fertilizers: follow the instructions on the package. Such fertilizers are quickly absorbed by the plant, but they only last for a short time.

There are also fertilizers in the form of capsules, sticks and tablets. This is a long-acting top dressing: nutrients enter the soil gradually.

What should you pay attention to when choosing a fertilizer for an indoor flower? First of all, read on the package what the ratio of nitrogen, potassium and phosphorus is contained in the fertilizer.

Choose a top dressing, guided by the principles of action of each chemical element on the plant: nitrogen promotes the development of the leafy part, phosphorus is responsible for high-quality and abundant flowering, potassium increases the cold resistance of plants, helps to absorb carbon dioxide and nitrogen. For uniform development of indoor plants, choose fertilizers containing these minerals in equal proportions, if the features of the plant's agricultural technology do not require any other percentage.

Frequency and dosage of dressings

But if for each room culture there are clearly defined periods when it is necessary to make additional fertilizing, then with the frequency of procedures everything is far from so simple. Some plants need fertilization literally every week, while others require not only rare procedures with a frequency of 1 time per month, but also reduced doses of fertilizer concentration.

The easiest way is for those growers who use long-acting fertilizers: they are added according to the manufacturer's instructions directly to the soil no more than once every few months. But they are not suitable for all plants, and classic liquid and foliar feeding requires not only the manufacturer's instructions, but also the preferences of each plant. Top dressing with a frequency of 1 time in 2-3 weeks is considered traditional, or standard. More often, fertilizers are applied for abundantly flowering plants or summer plants, less often for succulents and desert plants.

When choosing dosages, it is not enough just to follow the manufacturer's instructions for each specific fertilizer composition. Subtropical and tropical crops are fed with traditional doses. But for plants that are sensitive to an excess of nutrients, succulents, young seedlings or crops obtained by cuttings, desert and mountain plants, the dosage of fertilizers is halved.

Lesson on the topic "Feeding indoor plants"

Materials for a labor training lesson under the "Floriculture and Ornamental Gardening" program

View document content "Lesson on the topic" Feeding indoor plants ""

Top 5 best mineral dressings for indoor flowers

It is necessary to feed flowers for their abundant growth and flowering, as well as for raising the immunity of plants. All fertilizers are classified as organic and mineral.

Consider what mineral dressings are, as well as recipes for the best of them.

1. Simple. These include fertilizers containing one substance (nitrogen, potassium or phosphorus).

2. Complex. They include several elements.

3. Microfertilizers. They can also contain one or more substances.

Recipes for the best mineral dressings

Since only inorganic substances remain when burning plant residues, ash can be attributed to mineral fertilizing.

Most of it contains potassium, but there are also other elements required by plants. To obtain a solution, you must:

It is better to leave the mixture for a few days to infuse. The solution must be constantly stirred.

From dry minerals

To prepare the solution you will need:

The components are thoroughly mixed in water. Each plant is shed with 100 mg of top dressing.

There are many ready-made complex fertilizers on sale. They are easy to use and easily dissolve in water.

Usually, 1 cap of top dressing is diluted in 1.5 liters of water and the plants are watered immediately.

Yeast also contains many nutrients that contribute to the rapid growth of plantings.

The added yeast solution increases the activity of microorganisms necessary to improve the composition of the soil.

To prepare it you will need:

The components must be mixed, insisted a little. Before watering, dilute the solution with 5 liters of water and water the plants.

Tea (especially large leaf tea) contains a large amount of mineral elements. To prepare top dressing, you must perform the following actions:

Pour 1 tbsp of dried tea leaves into a 3-liter bottle

Let the mixture brew a little, cool, then water the plants in the same way as with plain water.

In addition to the above mineral fertilizers, dressings in the form of ready-made dry mixtures are common, which must be dissolved in water before use.

Fertilizers in the form of tablets, sticks, capsules are also popular, which are embedded in the soil, and with each watering they gradually give nutrients to the plants.

Feeding indoor plants - gardening

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    The Plodorod.net project was created for people who love to take care of their garden. We talk about caring for plants, the use of fertilizers and various dressings. Our goal is to make the harvest of project readers richer and tastier.

    The information on the site was written by practicing gardeners who themselves work on their own land every year. You yourself can try yourself as a journalist and write an article - we will publish it if it passes the review of our editors.

    On the pages of the project, you will find all the necessary information about various fertilizers and feeding. Application rates, compositions, properties, on what soils are used - all this information is for each fertilizer in our gardener encyclopedia, which is constantly updated.

    It is very easy to increase yields, the main thing is to work a little more with your mind. Good luck!

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    Individual approach

    There are general rules according to which fast-growing plants require more nutrients, and slow-growing plants require less. Potted green pets need feeding more often than tub pets. For flowering indoor plants, feeding with full complex fertilizers is required at least twice - when flower buds are laid and during the period of bud formation.

    Asparagus, for example, is very responsive to mullein feeding, and organic fertilizers cannot be applied under cacti. But they love sugar. Azaleas and camellias, unlike many others, feel great in acidic soil, and special fertilizers are produced for them. Oleander responds well to feeding with yeast, its leaves become bright and shiny, growth is noticeably enhanced.

    In general, all grown plants require an individual approach, which means, when caring for each specific specimen, you need to focus not only on general knowledge and rules, but also on your own observations, experience and intuition.

    Watch the video: How to Feed Houseplants Using Miracle-Gro Indoor Plant Food