Hydrangea Pics: Hydrangea Quercifolia

Hydrangea (/ha?'dre?nd?i?/;common labels hydrangea or hortensia) is a genus of 70-75 types of flowering plants native to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas. Undoubtedly the greatest types diversity is in eastern Asia, china notably, Japan, and Korea. The majority are shrubs 1 to 3 meters large, but some are small trees, and others lianas attaining up to 30 m (98 feet) by climbing up trees. They can be either deciduous or evergreen, though the generally cultivated temperate types are deciduous.Having been introduced to the Azores, H. macrophylla is quite typical now, particularly on Faial, which is known as the "blue island" due to the multitude of hydrangeas present on the island.Life cycleHydrangea bouquets are created from early spring to late fall months; they increase in flowerheads (corymbs or panicles) frequently at the ends of the stems.

Usually the flowerheads contain two types of blossoms: small non-showy flowers in the guts or interior of the flowerhead, and large, showy flowers with large colorful sepals (tepals). These showy plants are often long in a wedding ring, or to the exterior of the tiny flowers. Crops in crazy populations typically have few to none of the showy flowers, while cultivated hydrangeas have been bred and picked to have more of the bigger 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 circular flowerheads resembling pom-poms or, as the name means, the brain of any 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 flowers of some rhododendrons and viburnums can seem, initially, similar to those of some hydrangeas.Colors and dirt acidityIn most types the plants are white, however in some types (notably H. macrophylla), can be blue, red, green, light crimson, or dark purple. In these kinds the colour is affected by the occurrence of aluminum ions which can be found or tied up depending after the earth 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 supply aluminum ions and typically produce flowers that are blue to purple, whereas an alkaline soil (pH above 7) will tie up aluminum ions and lead to pink or red flowers.

This is caused by a color change of the flower pigments in the existence of aluminium ions which can be adopted into hyperaccumulating plant life.[6] Reducing 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 green a hydrangea is inspired by the cultivar also. Some plants are selected because of their ability to be blued, while others are bred and selected to be red, white or pink. 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'.