Hydrangeas mainly flower in shades of blue, pink and white. But the colouring may depend on the type of soil you have – some hydrangeas produce blue flowers on acid soils and pink on alkaline soils. And certain cultivars produce better colour than others. Here are our top choices.
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The RHS is the UK’s gardening charity, helping people and plants to grow - nurturing a healthier, happier world, one person and one plant at a time.
