Hydrangea (/ha?'dre?nd?i?/;common titles hydrangea or hortensia) is a genus of 70-75 kinds of flowering plants local to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas. Probably the greatest species diversity is in eastern Asia, notably China, Japan, and Korea. The majority are shrubs 1 to 3 meters tall, but some are small trees, as well as others lianas attaining up to 30 m (98 foot) by climbing up trees and shrubs. They can be either evergreen or deciduous, although broadly cultivated temperate species are all deciduous.Having been introduced to the Azores, H. macrophylla is very common now, on Faial particularly, which is known as the "blue island" because of the multitude of hydrangeas present on the island.Life cycleHydrangea plants are created from early spring to late fall months; they increase in flowerheads (corymbs or panicles) most often at the ends of the stems.
Typically the flowerheads contain two types of flowers: small non-showy blossoms in the guts or interior of the flowerhead, and large, showy bouquets with large multi-colored sepals (tepals). These showy flowers are often long in a wedding ring, or to the exterior of the tiny flowers. Plant life in outdoors populations have few to nothing of the showy plants typically, while cultivated hydrangeas have been preferred and bred to have significantly more of the bigger type blooms.There are two flower arrangements in hydrangeas with Corymb style inflorescens, which includes the commonly grown "bigleaf hydrangea"--Hydrangea macrophylla. Mophead blooms are large spherical flowerheads resembling pom-poms or, as the name implies, the relative brain of any mop. In contrast, lacecap flowers bear round, flat flowerheads with a center core of subdued, small bouquets bounded by outer bands of larger flowers having showy tepals or sepals.
The bouquets of some viburnums and rhododendrons can appear, initially, just like those of some hydrangeas.Colors and soil acidityIn most species the blooms are white, but in some species (notably H. macrophylla), can be blue, red, green, light crimson, or dark crimson. In these types the color is influenced by the presence of light weight aluminum ions which can be found or tangled up depending upon the land 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 produce flowers that are blue to purple typically, 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 existence of aluminium ions which is often taken up into hyperaccumulating vegetation.[6] Cutting down the pH of potting soils or mixes usually will not change the flower color to blue, because these soils haven't any aluminum ions. The capability to blue or green a hydrangea is influenced by the cultivar also. Some plants are selected for his or her ability to be blued, while some are bred and selected to be red, white or pink. The flower color of most other Hydrangea species is not affected by aluminum and cannot be changed or shifted. Hydrangeas also have a nickname called 'Change Rose'.
Hydrangea Solo 8X8 Floral Still Life Oil Painting, original painting
Pieces of Eight: Azores Hydrangeas, Oil Painting of Terceira Island
Nel39;s Everyday Painting: Hal39;s Hydrangeas SOLD
Hydrangea Winter flower Original Oil painting on canvas by HOomen
Tidak ada komentar:
Posting Komentar