Hydrangea (/ha?'dre?nd?i?/;common labels hydrangea or hortensia) is a genus of 70-75 varieties of flowering plant life indigenous to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas. Probably the greatest kinds diversity is at eastern Asia, notably China, Japan, and Korea. Most are shrubs 1 to 3 meters high, but some are small trees and shrubs, while others lianas achieving up to 30 m (98 feet) by climbing up trees and shrubs. They can be either evergreen or deciduous, although cultivated temperate varieties are deciduous greatly.Having been introduced to the Azores, H. macrophylla is quite typical now, particularly on Faial, which is recognized as the "blue island" due to the multitude of hydrangeas present on the island.Life cycleHydrangea plants are created from early spring to late autumn; they expand in flowerheads (corymbs or panicles) most often at the ends of the stems.
Usually the flowerheads contain two types of plants: small non-showy bouquets in the center or interior of the flowerhead, and large, showy blooms with large colorful sepals (tepals). These showy plants are often prolonged in a diamond ring, or to the exterior of the small flowers. Vegetation in untamed populations typically have few to nothing of the showy flowers, while cultivated hydrangeas have been decided on and bred to have more of the bigger type blossoms.There are two flower arrangements in hydrangeas with Corymb style inflorescens, which includes the commonly grown "bigleaf hydrangea"--Hydrangea macrophylla. Mophead flowers are large round flowerheads resembling pom-poms or, as the name suggests, the relative brain of your mop. In contrast, 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 plants of some viburnums and rhododendrons can show up, initially, similar to those of some hydrangeas.Land and colors acidityIn most kinds the plants are white, but in some species (notably H. macrophylla), can be blue, red, red, light crimson, or dark purple. In these kinds the colour is affected by the occurrence of lightweight aluminum ions which can be found or tangled up depending after the ground pH. For H. h and macrophylla. serrata cultivars, the flower color can be dependant on 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 result in pink or red flowers.
This is the effect of a color change of the rose pigments in the presence of aluminium ions which can be adopted into hyperaccumulating crops.[6] Decreasing the pH of potting soils or mixes usually does not change the blossom color to blue, because these soils have no aluminum ions. The ability to blue or pink a hydrangea is affected by the cultivar also. Some plants are selected because of their ability to be blued, while others are bred and selected to be red, pink or white. The flower color of all other Hydrangea species is not influenced by aluminum and cannot be changed or shifted. Hydrangeas also have a nickname called 'Change Rose'.
Hydrangea 39;Pink Annabelle39; pot 3 liter Maréchal
FreilandHortensien 39;Vanille Fraise®39; im 3Liter Container, Hydrangea
hydrangea petiolaris semiola climbing hydrangea
Hydrangea arborescens 39;White Liter 1.5 2530 cm
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