Rose fertilizer: you need to know that

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In order for roses to fully develop their breathtaking blooms, they need the right fertilizer. We show what makes rose fertilizer and why it is so important.

Fertilize roses
A special rose fertilizer can relieve symptoms of deficiency in roses [Photo: Andris Tkacenko / Shutterstock.com]

Far too often one comes across roses in beautiful gardens that are behind their possibilities. Despite the elaborate cut, winter protection and frequent treatment against pests, the beauty is not at its best. The cause is often unsuitable fertilization. But do not worry, this problem can be quickly eradicated by choosing a specially formulated rose fertilizer.

contents

  • Why do roses need a special fertilizer?
  • What is rose fertilizer made of?
  • Rose fertilizer in the test
    • Mineral rose fertilizer
    • Organic rose fertilizer
    • Organic rose fertilizer

the rose (pink) is probably the most popular flowering wood in our gardens - even though its maintenance is demanding. This article explains the need for a special rose fertilizer and compares organic, mineral and certified organic rose fertilizers.

Why do roses need a special fertilizer?

The queen of flowering trees can use a specially formulated fertilizer for the following reasons:

  • The formation of flowers costs the deciduous trees a lot of energy - this is especially true for the post-blooming and more frequently blooming varieties. The development of the decorative rose hips is often neglected, but here, too, large amounts of assimilates and nutrients are bound.
  • A properly composed fertilizer helps to promote the end of the shoots and the frost hardiness and, in addition to the "green growth", also to stimulate the formation of flowers.
  • The right fertilizer promotes a high soil quality, which is of great importance for the nutrient-hungry, deep-rooted roses.
  • An optimal supply enables the roses to store sufficient reserve materials at the end of the vegetation period, so that nothing stands in the way of strong budding in the next year.

What is rose fertilizer made of?

Different types of rose fertilizers contain different ingredients to nourish your roses. It will be between mineral, organic, organic-mineral and certified organic rose fertilizers:

Fertilizer type ingredients
Mineral rose fertilizer Selection of nutrients in pure salt form
Organic rose fertilizer Main and trace elements in a package made from carbon-rich, natural structures
Organic-mineral rose fertilizer Mineral and organic components in roughly equal proportions
Organic rose fertilizer Mostly organic components, in addition organic-certified mineral components

Rose fertilizer in the test

Rose fertilizers may not differ in their nutrient weights, but the type of fertilizer does a decisive influence on the effect, the fertilized soil and thus also on the rose that is in it grows.

Plant roses
Well-nourished soil is the best basis for healthy and free-blooming roses [Photo: pryzmat / Shutterstock.com]

Mineral rose fertilizer

As mentioned above, mineral rose fertilizers contain some of the plant nutrients that roses need: In addition to the main nutritional elements Nitrogen (N), phosphorus (P) and potassium (K) are sometimes some nutrients that the rose absorbs in smaller quantities will. That these are the only effective components of the Mineral fertilizer unfortunately brings with it some problems:

  • Since it never contains all of the necessary nutrients, the rose has to absorb a large number of essential nutrients from the soil's reserves. In the long term, the soil and the pot filling can become depleted of these nutrients, resulting in symptoms of deficiency that are often difficult for the layperson to recognize.
  • Mineral nitrogen in particular leads to the degradation of soil organic matter by stimulating soil organisms - including humus.
  • Because no new organic structural material is introduced, it is not possible to build up new humus.
  • Declining humus content leads to poorer soil properties: water retention and aeration as well as nutrient availability and root penetration decrease.
  • Incorrect application can inadvertently lead to over-fertilization due to its rapid solubility: in the best case scenario if the consequence is reduced flowering or increased susceptibility to frost, in the worst case the rose can die off.

Because of the disadvantages of mineral rose fertilizers, we therefore recommend the use of preparations that primarily rely on organic components and, ideally, can also demonstrate organic quality.

Organic rose fertilizer

Organic rose fertilizers bring a multitude of nutrient elements and various trace elements into the soil. It also contains organic, carbon-containing compounds that can decompose and humify soil organisms. Only after decomposition are the nutrients contained in it released, so that organic fertilizersalways have a slower working speed.

Rose bloom
Such a beautiful bloom can be achieved especially with animal-free fertilizers

The entry of the high and low molecular structures enables however the nutrition of soil organisms, of which each plant directly and indirectly benefits: They create a kind of nutrient buffer and thus enable an even supply, transform structures that are difficult to decompose into new, fertile humus and sometimes even live in complex symbiotic relationships with the roots of our garden plants - and thus also ours Roses. Despite its slow action speed, organic fertilizer can optimize the location for roses in the long term, so that good winter hardiness, growth and flowering are achieved.

Organic rose fertilizer

Rose fertilizers with an organic certificate contain organic and mineral components, whereby all mineral components must also be permitted in organic farming. They should only have a complementary effect, the lion's share of the ingredients are of natural origin. Even with ours Plantura organic rose fertilizer it is a fertilizer that is permitted in organic farming, but it has a small one Special feature: All organic raw materials used are of purely vegetable origin, that means ours Plantura Organic rose fertilizer does not contain any slaughterhouse waste or animal droppings.

Tip: The phosphate content in organic fertilizers is often relatively low and that makes sense. Because phosphate is sufficiently present in almost all garden soils, which is why it should not be added to the soil in large quantities. This also saves the finite fossil phosphate reserves. Now if you are wondering how to use your Fertilize roses properly and when the ideal time is to do so, you will find all the important information summarized here.