Hydrangea (/ha?'dre?nd?i?/;common labels hydrangea or hortensia) is a genus of 70-75 varieties of flowering plant life native to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas. Undoubtedly the greatest types diversity is eastern Asia, notably China, Japan, and Korea. Most are shrubs 1 to 3 meters large, but some are small trees, and others lianas achieving up to 30 m (98 feet) by climbing up trees. They could be either evergreen or deciduous, although cultivated temperate varieties are all deciduous greatly.Having been introduced to the Azores, H. macrophylla is currently very common, particularly on Faial, which is recognized as the "blue island" due to the multitude of hydrangeas present on the island.Life cycleHydrangea flowers are produced from planting season to late fall; 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 blossoms in the center or interior of the flowerhead, and large, showy flowers with large vibrant sepals (tepals). These showy bouquets tend to be prolonged in a ring, or to the surface of the small flowers. Vegetation in outrageous populations typically have few to none of the showy bouquets, while cultivated hydrangeas have been bred and decided on 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 indicates, the brain of the 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 viburnums and rhododendrons can seem, at first glance, just like those of some hydrangeas.Colors and soil acidityIn most types the flowers are white, however in some types (notably H. macrophylla), can be blue, red, pink, light purple, or dark crimson. In these species the colour is afflicted by the existence of light weight aluminum ions which are available or tied up depending after the garden soil 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 bring about pink or red flowers.
This is caused by a color change of the bloom pigments in the occurrence of aluminium ions which can be taken up into hyperaccumulating plant life.[6] Lowering the pH of potting soils or mixes usually does not change the blossom color to blue, because these soils have no aluminum ions. The capability to blue or green a hydrangea is influenced 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 most other Hydrangea species is not damaged by aluminum and can't be changed or shifted. Hydrangeas also have a nickname called 'Change Rose'.
Hydrangea Oil Impasto Original Painting, White Daisy and Hydrangea
PeeGee hydrangea oil painting by artist Janet Zeh
: quot;Hydrangea and White Picket Fencequot; oil on linen; 8quot; x 8
saturday hydrangea oil on stretched canvas 12 x 12 sold at $ 55 00
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