Pansy

The garden pansy is a type of large-flowered hybrid plant cultivated as a garden flower. It is derived by hybridization from several species in the section Melanium ("the pansies") of the genus Viola, particularly Viola tricolor, a wildflower of Europe and western Asia known as heartsease. Some of these hybrids are referred to as Viola × wittrockiana Gams ex Nauenb. & Buttler. For simplicity, the older name Viola tricolor var. hortensis is often used.

The garden pansy flower is 5 to 8 centimetres (2 to 3 in) in diameter and has two slightly overlapping upper petals, two side petals, and a single bottom petal with a slight beard emanating from the flower's center. These petals are usually white or yellow, purplish, or blue. The plant may grow to 23 cm (9 in) in height, and prefers sun to varying degrees and well-draining soils.

Names and terminology
English common names, such as "pansy", "viola" and "violet" may be used interchangeably. One possible distinction is that plants considered to be "pansies" are classified in Viola sect. Melanium, and have four petals pointing upwards (the two side petals point upwards), and only one pointing down, whereas those considered to be "violets" are classified in Viola sect. Viola, and have two petals pointing up and three pointing down. Another possible distinction is made by the American Violet Society – the International Cultivar Registration Authority for the genus Viola. It divides cultivated varieties (cultivars) in Viola sect. Melanium into four subgroups: B1 – pansies, B2 – violas, B3 – violettas and B4 – cornuta hybrids. On this classification, modern "pansies" differ from the other three subgroups by possessing a well-defined "blotch" or "eye" in the middle of the flower.

Modern horticulturalists tend to use the term "pansy" for those multi-coloured large-flowered hybrids that are grown for bedding purposes every year, while "viola" is usually reserved for smaller, more delicate annuals and perennials.

Etymology
The name "pansy" is derived from the French word pensée, "thought", and was imported into Late Middle English as a name of Viola in the mid-15th century, as the flower was regarded as a symbol of remembrance. The name "love in idleness" was meant to imply the image of a lover who has little or no other employment than to think of his beloved.

The name "heart's-ease" came from St. Euphrasia, whose name in Greek signifies cheerfulness of mind. The woman, who refused marriage and took the veil, was considered a pattern of humility, hence the name "humble violet".

In Scandinavia, Scotland, and German-speaking countries, the pansy (or its wild parent Viola tricolor) is or was known as the "stepmother"; the name was accompanied by an aitiological tale about a selfish stepmother, told to children while the teller plucked off corresponding parts of the blossom to fit the plot.

In Italy the pansy is known as flammola (little flame).

Historical background
In the early years of the 19th century, Lady Mary Elizabeth Bennet (1785–1861), daughter of the Earl of Tankerville, collected and cultivated every sort of Viola tricolor (commonly, heartsease) she could procure in her father's garden at Walton-upon-Thames, Surrey. Under the supervision of her gardener, William Richardson, a large variety of plants was produced via cross-breeding. In 1812, she introduced her pansies to the horticultural world, and, in 1813, Mr. Lee, a well-known florist and nurseryman, further cultivated the flower. Other nurserymen followed Lee's example, and the pansy became a favorite among the public.

About the same time that Lady Bennett was busy cultivating heartsease, James, Lord Gambier was doing the same in his garden at Iver under the advice and guidance of his gardener William Thompson. A yellow viola, Viola lutea, and a wide-petalled pale yellow species of Russian origin, Viola altaica were among the crosses that laid the foundation for the new hybrids classed as Viola × wittrockiana, named for the Swedish botanist Veit Brecher Wittrock (1839–1914). A round flower of overlapping petals was the aim of some early experimenters; in the late 1830s a chance sport that no longer had narrow nectar guides of dark color on the petals but a broad dark blotch on the petals (which came to be called the "face"), was found. It was developed in Gambier's garden and released to the public in 1839 with the name "Medora".

By 1833, there were 400 named pansies available to gardeners who once considered its progenitor, heartsease, a weed. Specific guidelines were formulated for show pansies but amateur gardeners preferred the less demanding fancy pansies. About this time, James Grieve developed the viola and Dr. Charles Stuart developed the violetta, both smaller, more compact plants than the pansy.

Cultivation
Modern horticulturists have developed a wide range of pansy flower colors and bicolors including yellow, gold, orange, purple, violet, red, white, and even near-black (very dark purple). Pansies typically display large showy face markings.

Plants grow well in sunny or partially sunny positions in well-draining soils. Pansies are perennial, but normally grown as biennials or annuals because of their leggy growth. The first year plant produces greenery, and bears flowers and seeds in its second year of growth. Afterwards, the plant dies like an annual. Because of selective human breeding, most garden pansies bloom the first year, some in as little as nine weeks after sowing.

Pansies are purchased as six-packs or "flats" (USA) of young plants from garden centers and planted directly into the garden soil. Plants will grow up to 23 cm (9 in) in height with flowers measuring 5 to 8 cm (2 to 3 in) in diameter, though smaller and larger flowering cultivars are available.

Pansies are winter hardy in zones 4–8. They can survive light freezes and short periods of snow cover, but, in areas with prolonged snow cover, a covering of a dry winter mulch is recommended. In warmer climates, zones 9-11, pansies can bloom over the winter, and are often planted in the fall. In warmer zones, pansies may re-seed themselves and return the next year. They are not very heat-tolerant; warm temperatures inhibit blooming and hot muggy air causes rot and death. In colder zones, pansies may not survive without snow cover or protection (mulch) from extreme cold or periods of freezing and thawing. They perform best in zones with moderate temperatures, and equal amounts of mild rainfall and sunshine.

Pansies, for best growth, are watered thoroughly about once a week, depending on climate and rainfall. The plant should never be over-watered. To maximize blooming, plant foods are used about every other week, depending on the type of food used. Regular deadheading can extend the blooming period.
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