Hydrangea / Siti Zubaidah

Hydrangea / Siti Zubaidah

Hydrangea common names hydrangea or hortensia, is a genus of 70–75 species of flowering plants native to Asia and the Americas. By far the greatest species diversity is in eastern Asia, notably Korea, China, and Japan. Most are shrubs 1 to 3 meters tall, but some are small trees, and others lianas reaching up to 30 m (98 ft) by climbing up trees. They can be either deciduous or evergreen, though the widely cultivated temperate species are all deciduous.

In most species the flowers are white, but in some species (notably H. macrophylla), can be blue, red, pink, light purple, or dark purple. In these species, floral color change occurs due to the presence of aluminum ions which are available or tied up depending upon the soil pH. For H. macrophylla and H. serrata cultivars, the flower color can be determined by the relative acidity of the soil: an acidic soil (pH below 7), will have available aluminum ions and typically produce flowers that are blue to purple, whereas an alkaline soil (pH above 7) will tie up aluminum ions and result in pink or red flowers. This is caused by a color change of the flower pigments in the presence of aluminum ions which can be taken up into hyperaccumulating plants. Lowering the pH of potting soils or mixes usually does not change the flower color to blue, because these soils have no aluminum ions. The ability to blue or pink a hydrangea is also influenced by the cultivar. Some plants are selected for their ability to be blued, while others are bred and selected to be red, pink or white. The flower color of most other Hydrangea species is not affected by aluminum and cannot be changed or shifted. Hydrangeas are also nicknamed ‘Change Rose’.

You may also enjoy reading...

Info on Plants

Giant Passionfruit

Giant Passionfruit Passiflora quadrangularis, the giant granadilla, barbadine (Trinidad), grenadine (Haiti), giant tumbo or badea , is a species of plant in the family

Read More >
Info on Plants

Peanut Butter Tree

Bunchosia glandulifera, commonly known as peanut butter fruit, is a species of flowering plant in the acerola family, Malpighiaceae, that is

Read More >
Info on Plants

Avokado

Avokado Persea Americana Buah Avokado atau nama sainsnya Persea americana yang berasal dari keluarga Lauraceae, merupakan

Read More >