What and how to fertilize roses?
The beauty and aroma of roses are often supported by such a little aesthetic substances as manure and humus. The types of fertilizers and how to use them to ensure the lush and long flowering of rose bushes will be discussed in the article.
Essential substances for roses
The whole mass of nutrients, which is necessary as a room rose, and garden for a comfortable existence and abundant flowering, consists of:
- trace elements.
The macroelements most in demand for roses are:
- nitrogen, contributing to the active growth of green mass;
- phosphorus, stimulating the flowering of rose bushes;
- potassium, which strengthens the immunity of roses;
- calcium, neutralizing the acidity of the soil.
Trace elements significant for roses are:
Signs of nutrient deficiency
The appearance of rose bushes always signals their condition.
Deficiency of certain nutrients in the soil leads to changes:
- yellowing of the leaves, icing of the shoots, the oppressed state of the green mass indicate a nitrogen deficiency in the soil;
- brown border around the edge of the leaf plate and subsequent drying of the leaves indicates a deficiency of potassium;
- yellowing of the leaf in the spaces between the green veins and further necrosis of the leaf plate signal a lack of iron or manganese;
- a reddish tone in some parts of the leaves indicates a lack of magnesium;
- with a deficiency of boron, growth points die off, foliage and shoots are deformed, flowering stops;
- lack of sulfur is expressed in poor-quality photosynthesis, which is manifested in the lightening of the color of the leaves and the appearance of red spots on them;
- copper deficiency leads to whitening of the ends of leaf plates, weakening of turgor and falling of green leaves;
- with a lack of zinc, white spots appear on the entire leaf surface, except for the veins, with the subsequent occurrence of necrotic foci;
- insufficient molybdenum in the soil leads to falling buds and weak flowering.
Read more about what to do if the leaves turn yellow on the rose.
Types of fertilizers for roses
For feeding rose bushes, two types of fertilizer are used:
They can be industrial production or made in the form of mixtures with their own hands.
What and how to feed roses at home?
When feeding pink bushes with fertilizers, more often flower growers use factory-made mineral fertilizers and organic fertilizers of their own manufacture or supplied from livestock and poultry farms.
Macronutrients in the required volumes are contained in mineral supplements.
The soil is enriched with nitrogen through:
- ammonium sulfate;
- ammonium nitrate;
- sodium nitrate;
Phosphorus is contained in:
- phosphoric flour;
And potassium prevails in:
- potassium chloride;
- potassium nitrate.
The greatest effect is exerted by mineral fertilizers in the complex, containing several important trace elements at once. For example, potassium monophosphate containing potassium and phosphorus is used as a solution of 15 g of top dressing in a bucket of warm water.
Kalimagnesia contains potassium and magnesium in equal proportions. This top dressing is distributed on the basal surface of the soil in an amount of 20 g per bush, mixed with soil and watered with 20 l of water.
A good fertilizing effect is exerted by a mixture of a tablespoon of superphosphate and the same amount of potassium sulfate, diluted in a bucket of water. Half a bucket of funds is enough for one rose bush.
Important! Excess nitrogen in the soil is as fraught with problems as its deficiency, since it inhibits flowering and provokes the susceptibility of plants to diseases.
This type of top dressing is a rotted waste from the life of animals and birds, as well as rotted vegetation. Organics, which are the best of their kind top dressing, not only saturates the soil with useful substances, but also enriches the layer of humus in the ground.
To fertilize roses with manure, it is necessary that he ferment. For this, a portion of fresh mullein is taken in 10 parts of water, mixed and insisted for 7 days with periodic stirring. After that, 3 liters of the resulting fertilizer are poured under each plant.
Chicken droppings, which are mainly used in fermented form, are also used as fertilizers. But during the flowering period, it is useful to feed the roses at least twice with fresh chicken droppings, diluted in water in a proportion of 1:15 and applied under the bush to moist soil.
The pink bush responds with lush and active flowering to feed with yeast.
This fertilizer activates:
- the plant’s immune system, increasing its resistance to disease;
- root system development;
- good survival of seedlings when planting them in the soil.
Important! Since yeast requires heat for its development, it is impossible to fertilize the cold earth with yeast. To prepare yeast top dressing, it is necessary to dilute 10 g of yeast and 2 tsp in a liter of water. Sahara. After two hours of aging the mixture, it is added to a bucket of water and watered with the resulting rose solution at the rate of 0.5 l for each bush.
A popular folk remedy for soil fertilizer is wood ash. Its use is alternated with the use of organics. To prepare top dressing, 1 glass of ash is stirred in 10 l of water and the root surface of the soil is watered with the resulting mixture.
Another remedy is an herbal infusion prepared from weeds. Before weeval ripening, any weed grass is mowed, finely chopped, filled into a ten-liter container, filled with water and left in a warm place until the fermentation process begins. After this, the resulting infusion is diluted with water in a proportion of 1:10 and watered with roses.
In different phases of development, plants need the predominance of various nutrients in the soil.
We recommend reading how to transplant roses to another place.
In spring and summer
In spring, after the first pruning of the branches, with the beginning of the swelling of the buds, it is necessary to add top dressing, consisting of 30 g of ammonium nitrate and the same amount of superphosphate dissolved in a bucket of water. This composition is sprayed with plants.
It is also useful to apply decayed manure at a distance from the sprouts with the addition of a complex of mineral fertilizers at the rate of 120 g per 1 m².
In April, when the first shoots usually appear, a second top dressing is performed. Under each rose, 15 g of nitrogen fertilizers, 10 g of potassium salt and 30 g of superphosphate are applied. If organic is used as liquid top dressing, then one part of the mullein is mixed with 10 liters of water and insisted for a week. Under a medium-sized bush, pour up to 3 liters of fertilizing.
When buds appear on the plant in June, the rose is fertilized for the third time. The algorithm is the same as in April. But you can use bird droppings diluted in water in a ratio of 1:20 instead of mullein. Under each rose bush, 3 liters of the product are poured.
Also find out why the leaves fall off the rose.
In the middle of summer, a similar feeding is repeated. You can also make garden compost, one shovel for each bush. After flowering, at the end of the summer season, you need to add up to 20 g of potassium salt and up to 45 g of superphosphate under each bush.
During the entire summer period, it is useful to spray roses twice a month between dressings with infusion of wood ash. To prepare such foliar top dressing, 100 g of ash should be poured with two liters of boiling water and insisted for a day, then drained and diluted with water, bringing the volume of the product to 5 liters.
After the magnificent blooming of roses in the summer, in the autumn, you should replenish the expended reserve of macro- and microelements in the soil. It should be borne in mind that nitrogen, which stimulates the active growth of green mass, is useless to the plant in the autumn.
But in anticipation of the onset of the dormant period and the cold season, the need for potassium and phosphorus increases, strengthening the plant’s immune system and helping to better winter. The most common for this period is considered to be top dressing, consisting of tablespoons of superphosphate and potassium sulfate, diluted in 10 liters of water. Up to 4 liters of this mixture are poured under each rose.
You may be interested to learn about the features of caring for roses in the fall.
A folk remedy based on yeast that strengthens the roots is also popular. To cook it, you need 1 g of dry or 50 g of fresh yeast and 1 tsp. dilute sugar in a liter of warm water. After two hours of infusion, the solution is diluted with water and used for irrigation. It is useful to supplement such watering by introducing eggshell or wood ash under the pink bush.
Since seedlings are planted in prepared fertile soil, only a small amount of urea and superphosphate is added to the well when planted in the hole. Fertilize seedlings of roses not earlier than they take root in a new place.
How to understand that fertilizer is not suitable?
The effectiveness of fertilizers depends on the correct application. An excess of any substances in the soil can have a negative effect on the plant, as well as their lack.
Here's how it goes:
- with excessive introduction of nitrogen into the soil, an excessively rapid growth of green mass is observed, the stems become soft, the likelihood of becoming mildew increases;
- excessive feeding of plants with phosphorus disrupts the metabolism in the rose bush, leading to poor digestibility of copper and iron;
- overdoing the supply of soil with potassium inhibits the development of the plant;
- an excess of calcium in the fertilizer binds iron in the soil and prevents its absorption by the rose.
Extra Care Tips
Caring for roses consists not only in competent and regular fertilizing with fertilizers, but also in watering, pruning, preventive measures to prevent diseases, weeding, and hilling.
Experienced gardeners advise:
- water the bush directly under the root, digging out small holes, since the plant prefers rare but plentiful watering;
- in the summer and autumn, treat the plant with insecticides to prevent the attack of aphids, caterpillars and other pests;
- after flowering, remove the bud, allowing the formation of a new flower shoot;
- Following the mass flowering of the bush, carry out summer pruning, stimulating repeated flowering;
- if it turned out to be a cool and damp summer, in order to avoid the occurrence of fungal diseases, treat the rose bushes with funds based on “Fundazole”;
- in the end of October - the beginning of November, spud roses, carefully sprinkling soil on the root neck and grafting site;
- in the spring, as early as possible to scoop up the soil with which the bushes spud to prevent a possible subsequent sunburn of the plant.
We recommend that you learn more about how to prune roses.
Timely and competent fertilizing with fertilizers will certainly lead to lush flowering and magical aroma of roses, since these flowers are very responsive to human care.