The trimmed or strict hedge is ideal for hiding from prying eyes and creating an elegant plant screen in the garden. Your space is nicely delineated and stays green all year round. In return, you will need to ensure a minimum of maintenance so that your row of shrubs remains attractive all year round: this is the maintenance pruning. This allows them to maintain a straight shape all year round.
This article is about shrubs that have already reached their final size.
What period and how often?
Strict hedges should be trimmed twice a year.
At the end of summer: September / October
It is during these periods that the growth is greatest.
The right pruning technique
A general rule applies to trimmed hedges, it is essential for the good growth and health of your plants.
The top should be narrower than the base. Thanks to this technique, the entire plant benefits from good sunshine. This prevents it from stripping at its base.
1. Install a chalk line
To ensure you have a straight and straight hedge, you will need to install a chalk line. You can also do it without string, at the risk that the result is not perfect.
Plant at each end of your row of shrubs, two wooden stakes (four in total). Tie and tightly stretch two wires or ropes. Check that the two taut wires are level. The string should be placed 20 or 30 cm below the last shoots so that you can cut the recent shoots.
2. Start by cutting the top
In principle, the summit is cut flat, cutting off everything that protrudes from the line. You should cut about 20 to 30 cm in height at each maintenance pruning.
Your hedge is at the height of a man
Your hedge trimmer should be slightly tilted from the horizontal. Follow the string in a circular motion.
Your hedge is high
Use a pole and set the hedge trimmer at 90°. Pass it over the hedges and move gradually along the row.
- Trim the sides Technique for trimming your hedge
To trim the foliage correctly, you need to describe an arc of a circle, advancing little by little along your hedge.
Start the movement from bottom to top, then from top to bottom on the return.
Your hedge trimmer should stay parallel to the hedge.
This technique prevents cutting waste from being trapped in lower branches.
Choose your hedge trimmer
Thermal, with or without pole
Can cut large branches
Pole for cutting tall hedges
The thermal hedge trimmer is ideal for large gardens, with long, mature and very dense hedges.
Battery or electric
Cannot cut large branches
The battery or electric hedge trimmer is perfect for small gardens and hedges that are not too long and still young.
Ideal for touch-ups or a quick trim
Ideal for young plants