Hydrangea: planting, pruning and maintenance tips


L hydrangea, well known as hydrangea is a beautiful flowering shrub.

In summary, what you need to know is:

Name Hydrangea
Family Hydrangeaceae
Height 1 to 2 m

: Half-shade and shadow
Floor:  Rather acidic, heatherather heather earth.

F euillage Null and void –  Flowering : June to October

  • Find our articles on hydrangeas

Here are all our growing, pruning and maintenance tips for a beautiful growth and flowering of hydrangeas throughout the seasons.

Exposure for a hydrangea

It is important to give your hydrangea every chance to develop properly.

  • The hydrangea likes the sun as long as it is not scorching, especially in summer.
  • The sun in the morning or evening is the best exposure for a hydrangea.

Hydrangea starts its vegetation quite early in the season, usually in early spring.

  • To avoid late frosts, plant along a wall of the house or under a tree to protect it from the last frosts of the year.

It should also be noted that Hydrangea paniculata are more resistant to the cold than the best known of the hydrangeas, Hydrangea macrophyla.

Planting a hydrangea well

Like most shrubs, the hydrangea is best planted  in the fall. 

Purchased in pots or containers, you can plant the plant until the end of the season. in the spring  and even  in summer  avoiding periods of frost and high temperatures.

  • It needs heather soil for acidity and soil or jaridin soil to grow well.
  • A mixture of 50% heather soil and 50% garden soil is ideal.
  • If your soil is calcareous, avoid hydrangea or add sand to lighten the soil.

Respect a  distance from 80 cm to 1 m  between each foot if you want your hydrangeas to have room to grow.

  • Make sure that the collar (the part between the stem and the roots) is at ground level.
  • Pack the soil well when planting.
  • Water regularly, especially in the first year after planting the hydrangea.
  • Check out our tips for  plant heather soil plants well  .

Pruning and maintenance of hydrangeas

If the interview is really  very easy  and requires virtually no care, a  annual size  will allow you to significantly improve flowering.

  • After flowering, remove wilted flowers as you go along
  • Trim the hydrangeas preferably  after the frosts at the  March .
  • Find our video tutorial advice for  trim his hydrangeas well

How to keep your hydrangeas blue:

Most of those who see their hydrangea turn pink after planting, it is always because of the acidity of the soil.

The more calcareous the soil, the more difficult it is to keep a blue hydrangea.

The solution?

To maintain a blue hydrangea, the soil must be acidified.

  • Heather soil at planting is an excellent solution to keep them blue.
  • There is also alum, an aluminium sulphate powder that gives back blue to hydrangeas. Also in liquid form, it is sold in garden centres.
  • One slate mulch or maritime pine bark also helps to restore acidity to the soil.

About the hydrangea

hydrangea paniculata If the ‘Hydrangea macrophyla Hydrangea, known as the hydrangea is the best known, there are many species of the genus Hydrangea.

Flowering shrub of variable size and sometimes even climbing the hydrangea makes the happiness of our gardens. They can be found in most gardens and almost everywhere in the world.

Rather rustic, all hydrangeas can withstand temperatures of at least -15°, some as low as -30°.

On this picture you can admire the superb hydrangea paniculata .

If you have a  north wall …make a  climbing hydrangea .

Parasites and diseases in hydrangea

Hydrangea is quite resistant but still has some weaknesses that cause disease.

If white balls appear on the stems, they are undoubtedly scale insects.

  • Scale insects: organic control and treatment

If a white felting appears on the underside of the leaves, it is probably the fruit of the oidium.

  • Powdery mildew: organic control and treatment

If your soil is too calcareous, your hydrangea may turn yellow and show signs of fatigue.

  • The soil should then be enriched with a hydrangea fertilizer and as much heather soil as possible added to the surface.

By varying the varieties of hydrangeas, you give as many shapes and colours to your garden as you can, to the delight of the eyes.

  • Find our articles about hydrangeas

Photos: ©Imag’In and ©Pixaterra