Blue hydrangeas are a popular variety of hydrangeas known for their vibrant and attractive shades of blue. They are appreciated in gardens and floral arrangements for their colorful display and ability to adapt to various decorating styles.

The blue color of hydrangeas is mainly due to the presence of aluminum in the soil. The shade can vary depending on soil pH: an acidic pH (below 6) promotes blue tones, while a higher pH can make the flowers turn pink or purple.

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