Hydrangea (/ha?'dre?nd?i?/;common titles hydrangea or hortensia) is a genus of 70-75 species of flowering plant life indigenous to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas. Probably the greatest species diversity is within eastern Asia, notably China, Japan, and Korea. The majority are shrubs 1 to 3 meters extra tall, however, many are small trees and shrubs, while others lianas achieving up to 30 m (98 foot) by climbing up trees. They could be either deciduous or evergreen, although cultivated temperate species are deciduous broadly.Having been introduced to the Azores, H. macrophylla is very common now, particularly on Faial, which is known as the "blue island" because of the vast number of hydrangeas present on the island.Life cycleHydrangea flowers are produced from planting season to late fall months; they develop in flowerheads (corymbs or panicles) most often at the ends of the stems.
Usually the flowerheads contain two types of blossoms: small non-showy flowers in the center or interior of the flowerhead, and large, showy flowers with large colourful sepals (tepals). These showy plants are extended in a diamond ring often, or to the exterior of the tiny flowers. Plants in wild populations have few to none of them of the showy flowers typically, while cultivated hydrangeas have been bred and preferred to have significantly more of the larger type flowers.There are two flower arrangements in hydrangeas with Corymb style inflorescens, which includes the commonly grown "bigleaf hydrangea"--Hydrangea macrophylla. Mophead plants are large round flowerheads resembling pom-poms or, as the name indicates, the head of an mop. On the other hand, lacecap flowers bear round, flat flowerheads with a center core of subdued, small blossoms ornamented by outer bands of greater blossoms having showy tepals or sepals.
The bouquets of some viburnums and rhododendrons can appear, at first glance, a lot like those of some hydrangeas.Colors and earth acidityIn most varieties the blossoms are white, however in some types (notably H. macrophylla), can be blue, red, red, light crimson, or dark crimson. In these species the colour is affected by the presence of aluminium ions which are available or tied up depending upon the earth 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 cause pink or red flowers.
This is the effect of a color change of the rose pigments in the existence of aluminium ions which can be adopted into hyperaccumulating plants.[6] Bringing down the pH of potting soils or mixes usually does not change the rose color to blue, because these soils haven't any aluminum ions. The capability to blue or pink a hydrangea is inspired by the cultivar also. Some plants are selected for their ability to be blued, while some are bred and selected to be red, pink or white. The flower color of most other Hydrangea species is not influenced by aluminum and can't be changed or shifted. Hydrangeas likewise have a nickname called 'Change Rose'.
glenda39;s World : Variegated Hydrangea
Hydrangea Landscaping and Gardening Pinterest
hydrangea Gardening Ideas amp; Tips Pinterest
My blue hydrangea is pink this year. Summer Pinterest
Related Posts :
Subscribe by Email
Follow Updates Articles from This Blog via Email
No Comments