Gardeners are being urged to replace hydrangeas with drought-resistant alternatives as climate change turns the beloved flower into a 'silent killer' for gardens. Experts warn that rising temperatures and prolonged heatwaves are making hydrangeas unsustainable even in traditionally favourable regions.
According to horticulturalists, moisture-loving hydrangeas are struggling with arid conditions. One nursery owner reported losing nearly 70% of their collection during the 2022 heatwaves despite daily watering, stating: 'The climate simply doesn't support them anymore.' Warning signs include crispy foliage, curling leaves, faded colour, and drooping stems.
Alternatives recommended by professional gardeners include lavender, ceanothus (Californian lilac), and Russian sage, which offer vibrant blooms with lower water requirements. Planting drought-hardy bulbs in cooler spots is also advised for a more resilient garden.
The shift away from hydrangeas reflects a broader move towards climate-conscious gardening, which can reduce water consumption and help gardens thrive under changing conditions.
