Opinions are now divided when it comes to bark mulch. Many gardeners swear by mulching the hydrangea with chopped pieces of bark. Other garden lovers, however, reject bark mulch because of its strong acidifying effect and the harmful substances it contains.
Are hydrangeas compatible with bark mulch?
Bark mulch can be beneficial for hydrangeas because it keeps the soil moist, reduces weeds and provides protection for the roots. Make sure to clear the soil of weeds beforehand, apply a 7 cm thick layer of mulch and add additional fertilizer and horn shavings if necessary.
Hydrangeas like bark mulch
Deep-rooted shrubs such as hydrangea clearly benefit from the positive properties of this mulching material. Below are some tips for the correct handling of bark mulch:
- The soil must be completely free of weeds.
- Apply a layer of mulch at least seven centimeters thick.
- Stir in horn shavings to ensure the hydrangea's nutrient supply.
- Bark mulch binds nitrogen at the beginning of its slow decomposition process, so additional fertilizer applications may be necessary.
- After hoeing work, add the layer of bark mulch.
Tips & Tricks
Bark mulch has fallen into disrepute because some products contain a lot of cadmium. Therefore, only use certified bark mulch, the pollutant content of which is relatively low.
