hortenzia

Hortenzia is the common name for plants in the genus Hydrangea. These popular flowering shrubs are native to Asia and the Americas. They are widely cultivated for their large, showy flower clusters, which can be white, pink, blue, or purple, depending on the species and soil pH. The color of many hydrangea flowers is influenced by the presence of aluminum ions in the soil; acidic soil tends to produce blue flowers, while alkaline soil results in pink or red hues. White hydrangeas typically do not change color.

Hydrangeas are deciduous shrubs, meaning they shed their leaves annually. They prefer moist, well-drained soil and partial shade, though some varieties can tolerate full sun. The plant's blooming period is generally in the summer and fall. Common species include Hydrangea macrophylla, known for its mophead or lacecap flowers, and Hydrangea paniculata, which has cone-shaped flower clusters that often start white and mature to pink or red. Hydrangea arborescens, such as the 'Annabelle' variety, is also very popular for its large white blooms.

The genus Hydrangea belongs to the family Hydrangeaceae. In addition to their ornamental value, some species have historical uses in traditional medicine. Hydrangeas are relatively easy to care for, making them a favorite among gardeners. They are often used in landscaping for borders, mass plantings, and as specimen plants. Pruning methods vary depending on the species, with some being pruned in late winter or early spring, while others are best pruned immediately after flowering to avoid removing the next year's blooms.