Hydrangea expert shares critical watering error that can lead to death of flower

Dying hydrangea plant
-Credit: (Image: (Image: Getty))

Hydrangeas, large shrubs known for their vibrant clusters of blooms, are a popular choice among both beginner and experienced gardeners due to their low maintenance.

However, despite their reputation for being easy to care for, there are common mistakes that home gardeners of all skill levels can make with the flowers that bloom from spring to autumn.

Madison Moulton, a gardening expert from Blooming Backyard, noted that several mistakes can "seriously harm" the plant, but only one can kill them. She claimed that despite their ease of care, there are "small quirks in growth that often trip up gardeners" growing hydrangeas.

The most detrimental mistake is incorrect watering, as hydrangeas require a balance as they love moisture, but cannot thrive in waterlogged soil, reports the Express.

"The right balance will keep the roots cool and hydrated, giving you the best possible blooms and glossy foliage above the soil," the expert advised.

Watering hydrangeas
The flowers must be watered correctly to thrive -Credit:Getty Images

She warned: "Avoid watering too often, especially when drainage is not good, as this can quickly lead to root rot. If conditions don't improve, the entire root system will become mushy and the plant will die."

To rectify this, she suggests waiting until the soil has dried out slightly before watering again, taking into account recent rainfall in the area. At the same time, it's crucial not to delay watering hydrangeas as insufficient moisture and irregular watering "will lead to stress, limiting new growth and preventing flowering".

The specialist highlighted that water is an "essential component" in photosynthesis and without it, "hydrangeas cannot grow". The method by which gardeners water their hydrangeas can also impact the plant's development.

It's recommended to steer clear of overhead watering where feasible, directing the water flow towards the soil exclusively. Maddison advised: "This keeps the leaves dry and prevents the proliferation and spread of damaging fungal diseases."

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