Hydrangea (/ha?'dre?nd?i?/;common labels hydrangea or hortensia) is a genus of 70-75 kinds of flowering plant life local to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas. By far the greatest types diversity is within eastern Asia, notably China, Japan, and Korea. Most are shrubs 1 to 3 meters high, but some are small trees, yet others lianas achieving up to 30 m (98 ft) by climbing up trees and shrubs. They could be either evergreen or deciduous, though the widely cultivated temperate varieties are all deciduous.Having been introduced to the Azores, H. macrophylla is now very common, on Faial particularly, which is recognized as the "blue island" due to the vast number of hydrangeas present on the island.Life cycleHydrangea bouquets are produced from early spring to late autumn; they increase in flowerheads (corymbs or panicles) frequently at the ends of the stems.
Typically the flowerheads contain two types of flowers: small non-showy flowers in the center or interior of the flowerhead, and large, showy blossoms with large bright colored sepals (tepals). These showy plants are expanded in a wedding ring often, or to the exterior of the small flowers. Plant life in untamed populations routinely have few to none of the showy flowers, while cultivated hydrangeas have been bred and chosen to have significantly more of the larger type plants.There are two flower arrangements in hydrangeas with Corymb style inflorescens, which includes the commonly grown "bigleaf hydrangea"--Hydrangea macrophylla. Mophead bouquets are large rounded flowerheads resembling pom-poms or, as the name means, the brain of the mop. On the other hand, lacecap flowers bear round, flat flowerheads with a center core of subdued, small flowers encircled by outer rings of much larger plants having showy tepals or sepals.
The bouquets of some rhododendrons and viburnums can show up, at first glance, similar to those of some hydrangeas.Colors and dirt acidityIn most species the blossoms are white, but in some kinds (notably H. macrophylla), can be blue, red, pink, light purple, or dark purple. In these varieties the colour is influenced by the existence of aluminium ions which are available or tangled up depending after the land pH. For H. h and macrophylla. 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 the effect of a color change of the flower pigments in the existence of aluminium ions which can be adopted into hyperaccumulating plants.[6] Decreasing the pH of potting soils or mixes usually will not change the blossom color to blue, because these soils have no aluminum ions. The capability to blue or pink a hydrangea is also affected by the cultivar. Some plants are selected for his or her ability to be blued, while others are bred and selected to be red, white or pink. The flower color of most other Hydrangea species is not influenced by aluminum and can't be changed or shifted. Hydrangeas also have a nickname called 'Change Rose'.
hydrangea hydrangeas and more blue hydrangea hydrangeas winter blue
Nikko Blue hydrangea I wonder; I wander; I quietly rant.
winter ruined the summer bloom of the popular hydrangea. photo: CBS 2
This shrub, on the other hand, will bloom this summer. You can see
Subscribe by Email
Follow Updates Articles from This Blog via Email
No Comments