Hydrangea (/ha?'dre?nd?i?/;common titles hydrangea or hortensia) is a genus of 70-75 kinds of flowering crops local to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas. By far the greatest types diversity is eastern Asia, notably China, Japan, and Korea. Most are shrubs 1 to 3 meters tall, however, many are small trees, as well as others lianas getting up to 30 m (98 feet) by climbing up trees and shrubs. They can be either deciduous or evergreen, although cultivated temperate species are all 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 vast number of hydrangeas present on the island.Life cycleHydrangea flowers are produced from planting season to late autumn; they grow in flowerheads (corymbs or panicles) most often at the ends of the stems.
Typically the flowerheads contain two types of blossoms: small non-showy bouquets in the guts or interior of the flowerhead, and large, showy blooms with large brilliant sepals (tepals). These showy plants tend to be expanded in a diamond ring, or to the surface of the tiny flowers. Plant life in crazy populations routinely have few to nothing of the showy blooms, while cultivated hydrangeas have been determined and bred to have more of the bigger type blooms.There are two flower arrangements in hydrangeas with Corymb style inflorescens, which include the commonly grown "bigleaf hydrangea"--Hydrangea macrophylla. Mophead flowers are large round flowerheads resembling pom-poms or, as the name signifies, the head 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 flowers of some viburnums and rhododendrons can appear, at first glance, comparable to those of some hydrangeas.Earth and colors acidityIn most kinds the flowers are white, but in some varieties (notably H. macrophylla), can be blue, red, red, light purple, or dark purple. In these types the color is afflicted by the presence of aluminum ions which are available or tangled up depending after the ground 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 blossom pigments in the presence of aluminium ions which may be adopted into hyperaccumulating vegetation.[6] Lowering the pH of potting soils or mixes usually will not change the bloom color to blue, because these soils have no aluminum ions. The ability to blue or green a hydrangea is also affected by the cultivar. Some plants are selected for his or her 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 afflicted by aluminum and cannot be changed or shifted. Hydrangeas also have a nickname called 'Change Rose'.
Hydrangea macrophylla 39;Sybilla39; Hortensia de jardin à boule mauve
Litre Hydrangea Dark Angel, Black Diamond series
Hydrangea macrophylla ‘Mathilde Gütges’
Plantenwinkel: Hydrangea Aanbiedingspakket A in 2 liter pot www
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