Hydrangea (/ha?'dre?nd?i?/;common titles hydrangea or hortensia) is a genus of 70-75 types of flowering vegetation native to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas. Probably the greatest types diversity is in eastern Asia, notably China, Japan, and Korea. Most are shrubs 1 to 3 meters high, however, many are small trees and shrubs, yet others lianas reaching up to 30 m (98 feet) by climbing up trees. They could be either evergreen or deciduous, although broadly cultivated temperate kinds are deciduous.Having been introduced to the Azores, H. macrophylla is quite typical now, particularly on Faial, which is known as the "blue island" because of the multitude of hydrangeas present on the island.Life cycleHydrangea bouquets are produced from early spring to late autumn; they grow in flowerheads (corymbs or panicles) frequently at the ends of the stems.
Usually the flowerheads contain two types of blossoms: small non-showy blooms in the center or interior of the flowerhead, and large, showy blossoms with large colorful sepals (tepals). These showy bouquets are often long in a band, or to the surface of the tiny flowers. Plant life in untamed populations have few to none of the showy blossoms typically, while cultivated hydrangeas have been bred and preferred to have more of the larger type flowers.There are two flower arrangements in hydrangeas with Corymb style inflorescens, which include the commonly grown "bigleaf hydrangea"--Hydrangea macrophylla. Mophead plants are large rounded flowerheads resembling pom-poms or, as the name suggests, the relative mind of your mop. On the other hand, lacecap flowers bear round, flat flowerheads with a center core of subdued, small flowers surrounded by outer rings of larger flowers having showy sepals or tepals.
The blossoms of some rhododendrons and viburnums can seem, at first glance, very much like those of some hydrangeas.Garden soil and colors acidityIn most kinds the blooms are white, but in some species (notably H. macrophylla), can be blue, red, pink, light purple, or dark crimson. In these types the color is affected by the presence of aluminum ions which are available or tangled 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 produce flowers that are blue to purple typically, whereas an alkaline soil (pH above 7) will tie up aluminum ions and bring about pink or red flowers.
This is caused by a color change of the flower pigments in the presence of aluminium ions which may be taken up into hyperaccumulating vegetation.[6] Minimizing the pH of potting soils or mixes usually will not change the blossom color to blue, because these soils haven't any aluminum ions. The capability to blue or green a hydrangea is influenced by the cultivar also. 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 damaged by aluminum and cannot be changed or shifted. Hydrangeas also have a nickname called 'Change Rose'.
ROSE OF SHARON HIBISCUS Tree, 3N1 Plant Different Colors 12 Ft
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