Hydrangeas 'will die' if gardeners make one big mistake, expert explains

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Hydrangeas are large shrubs that boast huge, vibrant clusters of blooms which put on a show from late spring until autumn. Known for being low maintenance, hydrangeas are a popular choice among beginner gardeners and experienced growers alike.

But despite their reputation for being easy to care for, there are a few common mistakes home gardeners of all skill levels can make with hydrangeas. Gardening expert Madison Moulton of Blooming Backyard noted that there are several hydrangea mistakes that "seriously harm" the plant, but only one is likely to kill them outright.

The garden professional claimed that despite their ease of care, there are "small quirks in growth that often trip up gardeners" growing hydrangeas, reports the Express. The worst hydrangea mistake is watering them incorrectly, she said.


Gardeners need to find the right balance as hydrangeas love moisture, but also hate waterlogged soil. Madison explains: "The right balance will keep the roots cool and hydrated, giving you the best possible blooms and glossy foliage above the soil."

She urged: "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 aim to fix this, gardeners should wait until the soil has dried out slightly before they consider watering again, taking recent rainfall in the area into account. At the same time, it's crucial not to delay watering your hydrangeas too much as inconsistent hydration and lack of moisture can "will lead to stress, limiting new growth and preventing flowering", according to Madison.

How these plants are watered will have a big impact on their development. With this in mind, it's best to bypass overhead watering if possible, directing the water flow squarely on the soil.

In this regard, Madison stated: "This keeps the leaves dry and prevents the proliferation and spread of damaging fungal diseases."