Hydrangea Pics: Hydrangea macrophylla 39;Endless Summer39;

Hydrangea (/ha?'dre?nd?i?/;common brands hydrangea or hortensia) is a genus of 70-75 kinds of flowering vegetation native 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. The majority are shrubs 1 to 3 meters large, however, many are small trees, yet others lianas getting up to 30 m (98 feet) by climbing up trees. They can be either evergreen or deciduous, though the generally cultivated temperate kinds are all deciduous.Having been introduced to the Azores, H. macrophylla is now very common, particularly on Faial, which is recognized as the "blue island" due to the multitude of hydrangeas present on the island.Life cycleHydrangea bouquets are produced from planting season to late fall; they expand in flowerheads (corymbs or panicles) frequently at the ends of the stems.

Usually the flowerheads contain two types of plants: small non-showy blooms in the guts or interior of the flowerhead, and large, showy flowers with large colorful sepals (tepals). These showy blooms are often extended in a ring, or to the surface of the small flowers. Vegetation in outrageous populations have few to nothing of the showy blooms typically, while cultivated hydrangeas have been chosen and bred to have significantly more of the bigger type plants.There are two flower arrangements in hydrangeas with Corymb style inflorescens, which include the commonly grown "bigleaf hydrangea"--Hydrangea macrophylla. Mophead bouquets are large circular flowerheads resembling pom-poms or, as the name implies, the mind of an 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 viburnums and rhododendrons can seem, at first glance, similar to those of some hydrangeas.Colors and earth acidityIn most varieties the flowers are white, however in some species (notably H. macrophylla), can be blue, red, red, light crimson, or dark crimson. In these kinds the colour is affected by the occurrence of light weight aluminum ions which can be found or tangled up depending upon 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 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 presence of aluminium ions that can be taken up into hyperaccumulating vegetation.[6] Decreasing the pH of potting soils or mixes usually will not change the flower color to blue, because these soils have no aluminum ions. The ability to blue or pink a hydrangea is inspired 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 all other Hydrangea species is not influenced by aluminum and cannot be changed or shifted. Hydrangeas also have a nickname called 'Change Rose'.