How to fertilize the rosebush

TAKE CARE OF YOUR PLANTS WITH THE ROSE BUSH FERTILIZER

The roses  are plants with important requirements subscriber. To grow and develop optimally, roses need all the nutrients.

For the fertilization of the rose bush, the complex fertilizers, 10-10-10 (NPK), should be applied in the growing season , every 4 weeks, in the form of granules. During the hot season, in summer, it is advisable to use fertilizers with a lower concentration of nitrogen 6-12-6 (NPK). Another recommended formula is 12-12-17-2 (NPK-Mg).

 

Before establishing the fertilizer of the rose l, first we will know the mineral deficiencies that can appear.

SYMPTOMS OF NUTRIENT DEFICIENCIES IN THE ROSE BUSH

BASIC OR ESSENTIAL MACRONUTRIENTS IN ROSAL

  • Nitrogen (N): The foliage turns yellowish, the leaves remain small and no new growth is observed. In general the plant lacks vigor, shine and flowering is poor. In prolonged deficiencies, the leaves fall, the stems reach little height and the plant weakens.
  • Phosphorus (P): The young leaves turn dark and the underside with violet tones. The leaves of the rose bush fall off and the stems grow low and weaken.
  • Potassium (K): The margin of the leaves turns yellowish, and over time it becomes necrotic and acquires blackish tones. The flower buds appear poorly developed and the flowers do not acquire growth. Potassium, along with nitrogen and phosphorus, form one of the essential components of the rose bush.

Potassium is usually applied after spring, a potassium-based fertilizer should be applied, applying again in late summer, early autumn.

SECONDARY MACRONUTRIENTS IN ROSAL

  • Calcium (Ca): calcium deficiency causes uneven plant growth as well as abnormal root development.
  • Magnesium (Mg): The rose leaves turn pale in the center, with necrotic spots appearing on them. If the deficiency lasts over time, the leaves end up falling.

MICRONUTRIENTS OR TRACE ELEMENTS IN ROSAL

  • Iron (Fe): an iron chlorosis appears highlighted by yellow leaves with nerves without chlorosis. Common in alkaline soils.
  • Manganese (Mn): the leaves turn pale, mottled, especially in old or inferior leaves. This deficiency usually occurs in alkaline soils.

[alert style = »yellow»] When you see a rose bush with yellow spots in a generalized way and an appearance of low vitality, few flowers and small leaves, it is a rose bush with nitrogen deficiency. [/ alert]

Organic amendments, such as compost, reduce or inhibit this deficiency.

Correction for nitrogen deficiencies is based on the application of fast-acting nitrogen fertilizers, such as potassium nitrate .

[alert style = »yellow»] A basic fertilization program for rose bushes consists of the application, once a month, of a complete fertilizer. [/ alert]

The incorporation of nutrients in the rose bush will be abundant in terms of nitrogen and potassium , and less volume in phosphorus. It will depend on the extraction of nutrients from the rose bush, to establish the cover fertilizer.  Ferrer and Salvador advise the following application levels:

  • Ammonium nitrate (33%):  10 g / m 2 and month
  • Biammonium phosphate (21% N 53% P 2 O 5 ):  5 g / m 2 and month  
  • Potassium nitrate (13% N, 44% K 2 O):  12 g / m 2   and month

 ORGANIC FERTILIZER FOR THE ROSEBUSH

The organic fertilizer is very important in the rose bush. In autumn, organic matter will be fertilized at a ratio of 1 kg per square meter, reinforcing the fertilizer after pruning to encourage the growth of new branches.

If your land is poor and badly drained, you have to mulch it. This is done by incorporating compost, dry leaves, grass, straw, etc. into the soil.

It adds a great capacity of retention to the earth and at the same time incorporates organic nutrients as fertilizer of the rose bush.

Do not incorporate more than 3 cm of padding . Over time the compost process will reduce this height and you will have to proceed to the balanced mixture with the earth that surrounds the rose bush.

When the padding is removed, repeat the process.

APPLICATION OF AMENDMENTS AND FERTILIZERS. WHEN TO PAY?

 

Time of year to applyAmendmentsFertilizers
In preparing the soil before planting (late autumn)Organic: Animal manure or compostOrganic: Bone meal
Chemicals: Calcium superphosphates
3 weeks after pruningOrganic: Bone meal
Chemical: Calcium superphosphates
Chemical type: 6-12-6 (NPK) once a month
In spring / summer and in already planted rose bushesOrganic: stubble or grass cuttingsIn hot weather, half the dose

Welcome to The GardenPure! My name is Ryan Heagle, and I’m the founder of The GardenPure, I spent the first part of my adult life teaching and then living in Australia in various business ventures, the first of which was a business devoted to the sale of house plants.  I am now a full time blogger. I am a self taught gardener.

Ryan Heagle

Welcome to The GardenPure! My name is Ryan Heagle, and I’m the founder of The GardenPure, I spent the first part of my adult life teaching and then living in Australia in various business ventures, the first of which was a business devoted to the sale of house plants.  I am now a full time blogger. I am a self taught gardener.

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