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Special plants have special requirements. Hibiscus, olives and azaleas are special plants that each have their own requirements for their care. Can you do something good for these plants with a special fertilizer, with hibiscus fertilizer, olive tree fertilizer or azalea fertilizer?
Are there hibiscus fertilizers, olive fertilizers and azalea fertilizers?
No, it does not exist. Here you will be sold - usually in a very nice package and at a very nice price - just a normal fertilizer. Because neither hibiscus, nor olive trees or azaleas have special secrets in terms of their nutritional needs, they just need the main nutrients of all plants, perhaps in a special mixing ratio.
Each fertilizer is there to enrich the soil so that it becomes the perfect substrate for the particular plant. Where a fertilizer can only ever add something, and can add only certain substances, chemicals in a form available to the plants.
All commercial fertilizers contain the basic plant nutrients nitrogen (N), phosphate (P) and potassium (K). They are therefore also called NPK fertilizer. How much Nitrogen, Phosphate and Potassium are present is given as a percentage: If the figures 13/13/21 are printed on a fertilizer, this means that this fertilizer contains 13% nitrogen; 13% phosphate and 21% potassium.
According to the Fertilizer Ordinance, certain information is given on all fertilizers in the trade. This information also describes very well what is contained in a fertilizer if you take the trouble to read it.
- The ingredients can be given in abbreviations, which are the abbreviations for the respective substances: nitrogen (N), phosphate (P2O5), potassium oxide (K2O), calcium (Ca), calcium oxide (CaO), calcium carbonate (CaCO3), magnesium (Mg ), Magnesium oxide (MgO), magnesium carbonate (MgCO3), sodium (Na), sulfur (S), boron (B), iron (Fe), cobalt (Co), copper (Cu), manganese (Mn), molybdenum (Mo ) and zinc (Zn).
- All minerals and trace elements are needed by the plants only in small amounts, more important than anticipating the exact needs of the plant, is probably the determination of whether these additives are even contained in a fertilizer.
- If you know the exact needs of your plants and carefully read the label when buying the fertilizer, you will definitely be more likely to buy the right fertilizer for a particular plant than relying on what is known as flowery (and completely non-binding) label on the front of the label. What are the needs of hibiscus, olive trees and azaleas?
Hibiscus grows best in a humus-rich soil, which is normal to lush with nutrients, the hibiscus is one of the heavy-grained, who wants to be well cared for. During the growth phase (March to October) it should therefore be fertilized weekly. It is recommended to use a fertilizer with the NPK combination 7-6-5 for the hibiscus, also a little sulfur, boron, copper, iron, manganese, molybdenum and zinc should be included. The combination of course does not have to be the same, so a normal flower fertilizer with NPK 4-5-6 could easily be used until you buy a more nitrogenous fertilizer next time.
In terms of pH, the hibiscus has no major soil requirements, it can move from moderately acidic to neutral to moderately alkaline.
Olive trees and olive tree fertilizer
The olive tree grows originally in a Mediterranean climate, so it is used to heat and drought in summer and has a sandy and / or loamy soil under it. Olive trees do not need a lot of fertilizer, they grow in nature rather on a barren soil. It is usually sufficient if you fertilize your olive tree at the beginning of the growing season in spring and then replenish every two weeks with some fertilizer. He gets along well with any normal liquid fertilizer for green plants, z. B. with a fertilizer, which has the recommended for the hibiscus nutrient combination. During the resting period in winter, the olive tree should not be fertilized at all.
Azaleas and azalea fertilizers
More important than any fertilizer is for the azaleas the right soil: It must first have the right pH, because azaleas love slightly acidic soil with a pH between 4 and 6. Then the soil should be quite loose, because the azaleas a lot Need oxygen, it is also guaranteed that the earth does not dry out quickly.
You can control the pH with a simple test strip from the pharmacy to keep the soil acid, you can take quite pragmatic approach: The azaleas in the tub are probably already happy, if you once a year a full filter bag of coffee grounds in the Get earth (in addition to acid, a mild fertilizer), a splash of vinegar is also conceivable. The correct NPK mixture contains each fertilizer for bog beds, 6-3-6 is z. B. a good combination. Azaleas do not have very large nutrient requirements, they often come with a fertilizer in early April and a second in early July over the year.
In addition to selecting the right fertilizer, it is also important that this fertilizer is administered in a plant-friendly form.In no case should they be over-zealous with the quantities, plants are over-fertilized more often than they die from deficiency symptoms. If you think that your plant is optimally nourished, but this plant still shows weaknesses, the advice of an experienced gardener from a specialist company is best used. It may well be that this then with a look at the plant suspected: "Here is potassium is missing!" And is right with this assumption.