Pruning hydrangeas – Hydrangea macrophylla

Flowering plants

A garden, among its many positive faculties, has the very important one of giving a new light and a new splendor to the whole house; according to statistics on the subject, many garden owners do not deny that they have decided to have one above all to increase the beauty of the whole house complex, and therefore to find satisfaction in seeing how much beauty they possess, taking pleasure in it. There are many furnishing plants, but for gardens there are some flowering plants that can really transform the aesthetic result of the whole and even manage to suddenly elevate the result of the garden. Depending on your tastes, you can decide to install, cultivate and take care of small plants, to be placed classically in rows or as small flower beds scattered around the garden; not only, then there is someone who loves large flowering plants, which fill part of the sky and the walls of our home with color. A good solution is the combination of both, which if positioned with care and with a little good taste (everyone has their own, so it is important to dedicate yourself to the garden) will fully satisfy us. Today we will talk about a beautiful and much appreciated flowering plant, as well as widespread: hydrangea.


Hydrangea is a flowering plant that has its origin in extreme Asian areas (i.e. China and Japan) and in some areas of the American continent, especially in its wettest part. The scientific name is Hydrangea, and the family that composes it includes many plants, all «hydrangeas», with few characteristics to differentiate them. Let’s say immediately that hydrangea is so appreciated and sought after for its spectacular sphere inflorescences: the flowers are small and colorful, but above all they are grouped in natural hemispherical bunches, which together with the bush shape of the plant can guarantee a truly beautiful within a well-kept garden (or even an apartment, where they are often used). In reality there are various species of hydrangea, some of which are not for pots but climbers; those for pots have a fairly stocky and robust stem, from which branches dense outwards, on which green leaves and bunches of colorful flowers will rise. By the way, the colors of hydrangea vary between blue-violet and pink-red, with some intermediate shades; in general, the color of the flowers is a combination of two factors: the genetics of the plant and the soil on which it grows, with the acidic ones tending to blue and the alkaline ones tending to pink-red.

Pruning hydrangeas

Pruning hydrangea is an operation that is essential to ensure that the plant is able to express its full flowering potential every year; in fact the hydrangea blooms once a year in April, and this phase can last up to eight weeks if the cultivation conditions are perfect. In general, the flowers and dry branches must be eliminated, but avoiding the branches grown in the last year (i.e. those that have buds) because the following year they will already bring flowers, they do not need them. For climbing species, pruning is useless as well as harmful, because the nature of the plant autonomously renews its various parts. In general, hydrangea should be pruned after its flowering, when it ends; it must be said, however, that in species that grow in a harsh climate in winter it is good to prune at the end of the colder season, so that the old branches protect the young (innermost) from temperature changes. Where, on the other hand, the climate is milder, it is good to prune as soon as flowering ends, avoiding eliminating the buds that are already forming, but concentrating on dry and more arid branches.

Pruning hydrangeas: Technique, watering, fertilizing

Growing hydrangeas is a fairly simple operation if pursued in the garden, while it requires several targeted measures if done in the apartment; in fact the hydrangea, to be able to bloom in a closed place, must be able to stop in a bright place but without direct sunlight, cool and ventilated but above all with temperatures not higher than eighteen degrees centigrade, otherwise there would be the arrest of flowering. Despite this, however, the plant will bloom for only one year, while for the following it is good to transfer it to the garden. Watering must be regular and abundant, especially in summer; the soil must always be humid (but never soaked) and it is a good idea to proceed with spraying on the foliage, to create a perfect climate for this plant with humid tropical origins. As for fertilization, the best results are obtained by fertilizing the plant with liquid fertilizer once a week in the summer period, preferring a fertilizer with a greater quantity of potassium, a nutrient that hydrangea makes a great use of and which therefore, without adequate fertilization, would risk lack in the earth of both the pot and the garden. For the rest, right quantities of nitrogen and phosphorus in the norm will be fine and will complete the nutritional picture of the plant.

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