Manure for viburnum

Manure for viburnum

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Question: what fertilizer for viburnum

I would like to know, as a courtesy, what granular fertilizer to use to support the growth of some plants of Viburnum, about 60 cm high, purchased and planted around a mesa ago. Thank you and best regards. Thomas

Fertilizer for viburnum: Answer: that fertilizer for viburnum

Dear Thomas,
the choice of a fertilizer to be used in the garden must be made from season to season, because the plants are living beings, and as such in every period of the year they need different substances, which improve their development, just like we do humans, that in summer we take supplements of mineral salts, because we expel an excessive quantity due to sweating, while in full winter we do not need such mineral salts. On the packaging of fertilizers it is precisely indicated which substances they contain, by means of the title (or concentration) of each macro-element of which the fertilizer is made; the three basic macroelements are NPK, or nitrogen, phosphorus and potassium. Nitrogen is useful for improving the development of the green parts of the plant, and therefore it is a fundamental element in the first months of spring, when the plants restart their vegetative cycle, and is then exploited, to a lesser extent, in the remaining months of the year; phosphorus, on the other hand, is fundamental for a correct development of the root system, then enters the metabolic processes of the plant, and is particularly present in the young shoots; potassium is important in fruit production, in flower coloring, improves water absorption and makes plants more resistant to pests and climate change.
In addition to these three fundamental elements, a fertilizer must also contain other elements, in smaller quantities, namely iron, molybdenum, boron, manganese, sulfur, calcium, copper, zinc. If none of the aforementioned trace elements is present on the fertilizer label you are purchasing, I ask you to change the fertilizer.
Typically in the garden fertilizers richer in nitrogen are used in spring, richer in potassium in late spring and up to autumn, and then return to fertilizers rich in nitrogen in autumn; consider that any fertilizer will have sufficient amounts of phosphorus for your viburnum, because it is the element whose plant needs are usually lower. I therefore invite you to use a fertilizer for green plants at the end of winter, one for flowering plants in spring and summer fertilizers; consider that if you use a slow release granular fertilizer, you will have to spread a dose at the end of winter, and another 4 months later; the last fertilization, the autumn one, is often done with manure, because besides enriching the soil, it also allows to improve the mixture of the soil itself, and therefore it must be spread and lightly hoed around the plants. If you do not wish to use manure, use the fertilizer for green plants again.