Hydrangeas come in all shapes and sizes, producing an abundance of petals that are well-suited to different environments. Their characteristic blue and pink hues reflect the acidity levels of the soil they’ve emerged from, with blue flowers growing in acidic soil while pink hues come from alkaline ground. Conversely, neutral soil is key for gardeners who want to turn their hydrangeas a deep purple colour. Gardeners have claimed that, with prolonged use, several natural ingredients can change hydrangea colours, including coffee grounds, eggshells and vinegar. “Some gardeners have claimed that a…
