The hydrangea is often referred to in German as a water shrub. This name indicates the enormous water requirement of the flowering plant. Not only on sunny, hot days does the hydrangea have to be watered regularly.
Hydrangeas need a lot of water
Always keep the substrate moist
The hydrangea needs a potting soil that holds the irrigation water well and distributes it evenly to the roots. Water whenever the top inches of soil feel dry. On hot summer days, this can be necessary twice a day, especially for hydrangeas that are cultivated in tubs.
Avoid waterlogging
Like many plants, the hydrangea is extremely sensitive to waterlogging. If the flowering plant regularly gets its feet wet, the roots will begin to rot and the hydrangea will not thrive. Therefore, pour away any liquid that collects in the coaster after a short time. In areas with heavily compacted soil, you should put a drainage layer in the planting hole when planting.
Use soft water
In the long run, the hydrangea does not tolerate calcareous water, as lime increases the pH value of the soil. As a result, blue and pink colored hydrangeas change their beautiful coloring. Therefore, always water with soft rainwater or filter the tap water.
Prepare irrigation water
Alternatively, you can add some vinegar to the water. This acidifies the soil so that the pH value remains in the ideal range.
tips and tricks
Hanging flowers and leaves indicate a lack of water, which can massively damage the plant. If the root ball is already completely dry, you should immerse it completely in a bucket filled with water for a while. Outdoor hydrangeas are fully washed.