Comment tailler les hortensias ? - Truffaut

Introduction

This tutorial provides a step-by-step guide on how to properly prune hydrangeas, specifically the hydrangea macrophylla. Pruning is essential for maintaining the health and beauty of these flowering shrubs. Since they bloom on the previous year's buds, it’s crucial to prune them correctly to encourage vibrant blooms in the following season.

Step 1: Assess the Plant

• Timing: The best time to prune hydrangeas is after they have finished blooming, usually in late summer to early fall.
• Inspect the Plant: Look for dead or wilted flowers and any branches that appear dry or unhealthy. This will help in identifying what needs to be removed.

Step 2: Remove Dead Flowers

• Cutting Technique: Use sharp, clean pruning shears.
• Cut Just Above the Bud: Trim the dead flowers by cutting just above the last healthy bud on the stem. This encourages new growth and helps maintain the shape of the plant.
• Avoid Cutting Too Short: Be careful not to cut back too far, as this can result in fewer flowers in the next blooming season.

Step 3: Eliminate Old Wood

• Identify Dry Wood: Look for any branches that are old, grey, or brittle.
• Prune Old Wood: Cut these branches at their base to promote new growth from the healthier parts of the plant.
• Focus on Overall Shape: While pruning, consider the overall shape of the shrub to ensure it remains balanced and aesthetically pleasing.

Step 4: Clean Up

• Remove Debris: Collect and dispose of any cuttings or dead flowers from around the base of the plant to prevent disease.
• Check for Pests: Inspect the leaves and branches for any signs of pests or disease, and take appropriate action if necessary.

Conclusion

Pruning hydrangeas properly can significantly enhance their growth and flowering potential. Remember to cut just above healthy buds, avoid cutting too short, and remove any dead or old wood. Regular maintenance will ensure your hydrangeas remain vibrant and healthy, providing beautiful blooms in the upcoming seasons. Consider visiting local gardening stores or online resources for more tips and the best care practices for your hydrangeas.