File:Spectacular garden flower - Dahlia.jpg
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Summary
DescriptionSpectacular garden flower - Dahlia.jpg |
English: DID YOU KNOW!!!
Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Asterales Family: Asteraceae Genus: Dahlia Dahlias are considered one of the most spectacular garden flowers. There is a great variety of form in dahlias, from the showy dinner-plate size to the bright, little single ones. Dahlias are natives of the mountainous regions of Mexico and, although they grow in a warm country, they are actually temperate plants requiring cooler conditions. There are approximately 30 species and 20,000 cultivars of Dahlias. Description/Taste The Dahlia flower consists of numerous delicate petals that encircle a central yellow core known as the capitulum or floral head. Dahlias can be grown in varying shades of white, yellow, orange, red, pink and purple. Seasons/Availability Dahlia flower season begins in early spring and continues though summer into early fall. Current Facts Dahlias belong to the Asteraceae (Aster) family along with daisies and sunflowers. There are over 20,000 different species within the Aster family, it is the second largest family of flowering plants next to the orchid (Orchidaceae) family. The national flower of Mexico, Dahlias today have become one of the most popular competition flowers amongst competitive growers. Applications Dahlia's are most commonly used for decorative purposes on cakes, tarts and pastries. Serve alongside cheese or desserts as a garnish. Remove the petals of the Dahlia and add them to grain or green salads to add a pop of color. Geography/History Dahlias are native to Mexico where they have been grown for centuries. From there they made their way to Spain via conquistadors who sent seeds of the flower to Madrid along with other seeds of plants and vegetables they had found growing during their explorations. The Dahlia was given its name by botanist and director of the Royal Gardens of Madrid Antonio José Cavanilles, who named the flower after another botanist, Andres Dahl. Dahlias soon spread across Europe and from Mexico to the United States during which time they became an immensely popular garden flower worldwide. Facts About Dahlias • The dahlia is named after Swedish 18th-century botanist Anders Dahl. • The dahlia is the official flower of the city of Seattle. • The dahlia originated in Central American in the 16th century. • Spanish Botanists discovered it growing wild on the sandy hillsides of Mexico. • The first tubers arrived in Europe at the end of the 18th century, sent over to Madrid by the Spanish settlers in Mexico. • Andreas Dahl (after whom the plant is named) regarded it as a vegetable rather than a garden flower, but interest switched from the edible tubers to the blooms when the first varieties with large, double flowers were bred in Belgium in 1815. • The favourites in those days were the Ball and Small Decorative Dahlias. Now it is the Large Decorative and Cactus varieties which capture the public fancy. • Dahlia Plants ranging from dwarf bedders (twelve inches high) to giants taller than a man. Flowers range in size from an inch to the largest dinner plate. • The first dahlias were brought to Europe by the early explorers and over the centuries, through hybridization, developed the modern dahlia. • The Dahlia seeds will germinate a little faster when we use a heating mat, or place them on top of a refrigerator for heat. • Dahlia bulbs are a subterranean root system, comprising many distinct tubers, each a separate lump. These allow the dahlia plant to mature year after year without the benefit of seed or spores. To sprout the next season, each tuber must have one eye. • Dahlia pinnata, is referred to garden dahlias, but this really is not accurate since all modern dahlias are hybrids between species. The most common hybrids are theproducts of crossing Dahlia coccinea with Dahlia pinnata. |
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Source | Own work |
Author | Shiv's fotografia |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:17, 13 December 2017 | 3,456 × 2,304 (2.17 MB) | Shiv's fotografia | User created page with UploadWizard |
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Camera manufacturer | Canon |
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Camera model | Canon EOS 600D |
Exposure time | 1/100 sec (0.01) |
F Number | f/5.6 |
ISO speed rating | 100 |
Date and time of data generation | 09:03, 3 February 2016 |
Lens focal length | 48 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
File change date and time | 09:03, 3 February 2016 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.3 |
Date and time of digitizing | 09:03, 3 February 2016 |
Meaning of each component |
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APEX shutter speed | 6.625 |
APEX aperture | 5 |
APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 41 |
DateTimeOriginal subseconds | 41 |
DateTimeDigitized subseconds | 41 |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 3,818.7845303867 |
Focal plane Y resolution | 3,872.268907563 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Rating (out of 5) | 0 |