The hydrangea is often referred to as a water shrub in German. This name indicates the flowering plant's enormous water requirements. The hydrangea needs to be watered regularly, and not just on sunny, hot days.
How should hydrangeas be watered?
Hydrangeas need regular watering to keep their substrate moist. Use soft rainwater or filtered tap water to avoid waterlogging and limescale deposits. If there is a lack of water, you should completely submerge the pot ball in water or flood outdoor hydrangeas.
Keep substrate moist at all times
The hydrangea needs a potting soil that holds the irrigation water well and distributes it evenly to the roots. Water whenever the top few inches of soil feel dry. On hot summer days, this may be necessary twice a day, especially for hydrangeas that are grown in pots.
Avoid waterlogging
Like many plants, hydrangea is extremely sensitive to waterlogging. If the flowering plant has regularly wet feet, the roots begin to rot and the hydrangea thrives poorly. Therefore, pour away any liquid that collects in the coaster after a short time. In areas with heavily compacted soils, you should add a drainage layer to the planting hole when planting.
Use soft water
In the long term, the hydrangea cannot tolerate calcareous water, as lime increases the pH value of the soil. This causes blue and pink hydrangeas to change their beautiful color. Therefore, always water with soft rainwater or filter tap water.
Prepare watering 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 & Tricks
Drooping flowers and leaves indicate a lack of water, which can cause massive damage to the plant. If the pot ball is already completely dry, you should immerse it completely in a bucket filled with water for some time. Outdoor hydrangeas are flooded.
