But what many perceive to be flowers are really the colorful bracts. Poinsettia are popular potted plants, particularly during Christmas, Provides effective color in home decor and symbol of Purity. The colored bracts—which are normally flaming red, with cultivars being orange, pale green, cream, pink, white, or marbled—are often mistaken for flower petals because of their groupings and colors, but are actually leaves. The plant bears dark green dentate leaves that measure 7–16 centimetres (2.8–6.3 in) in length. [16], The poinsettia occurs in Central America, occurring from Mexico to southern Guatemala. What are often taken to be the petals of flowers are sometimes bracts—for example, the large, colourful bracts of poinsettias or the showy white or pink bracts of dogwood Actually, they are not flowers but modified leaves called bracts. Poinsettias brighten the holidays. [13], The tropical dry forests where wild poinsettias grow experience largely unregulated deforestation, resulting in habitat loss. After university research trials showed sensitivities of some colored bracts of poinsettia cultivars at labeled rates of the insecticide Hachi-Hachi, SePRO is voluntarily restricting the use of the insecticide on poinsettias with bracts in color.Since its launch, Hachi-Hachi has proven to be an effective and efficacious insecticide for Western flower thrips, aphid and other foliar […] This has not been documented in wild poinsettias though, as cultivars seldom flower and do not produce fruits. [7], The poinsettia is the world's most economically important potted plant. The plant bears dark green dentate leaves that measure 7–16 centimetres (2.8–6.3 in) in length. [22], Poinsettias are susceptible to several diseases, mostly fungal, but also bacterial and parasitic. Interesting facts. Wild poinsettias occur from Mexico to Guatemala, growing on mid-elevation, Pacific-facing slopes. There are plants with bracts that have evolved to attract pollinators. The bright bracts are designed to attract insects to the tiny yellow flowers in their centers. They prefer full sun and moderately moist soil that drains well. [7], Euphorbia pulcherrima is a shrub or small tree, typically reaching a height of 0.6–4 metres (2–13 ft). The color of a poinsettia’s bracts is created through a process called “photoperiodism,” meaning the processes are related to the photoperiod or length of day. These colorful "blooms" are actually modified leaves, called bracts, that surround the true flower of the poinsettia. By Joe Lamp'l. Its natural habitat is thus highly fragmented, particularly near metropolitan areas such as Taxco. [13], Poinsettias are popularly, though incorrectly, said to be toxic to humans and other animals. Each cup-shaped cyathium has a red, fringed top, and contains many male stamens, each of which is a single flower. The first step in choosing a poinsettia is to determine the color you would like. It derives its common English name from Joel Roberts Poinsett, the first United States Minister to Mexico, who is credited with introducing the plant to the US in the 1820s. Keeping a poinsettia alive from one holiday season to the next and prompting its bracts to change color is challenging, but it can be done without special equipment. They produced a fuller, more compact plant by grafting two varieties of poinsettia together. After un-sleeving, space plants apart in … Known as Christmas Stars, the Poinsettia is a staple Christmas plant for the home. I […] [13], Aztec people use the plant to produce red dye and as an antipyretic medication. [10] In Nahuatl, the language of the Aztecs, the plant is called Cuetlaxochitl, meaning "flower that grows in residues or soil"[10] Today it is known in Mexico and Guatemala as flor de Nochebuena, meaning Christmas Eve flower. White poinsettia plants have bracts that turn white instead of red. How to Revive a Dying Poinsettia. Flowers may arise between bracts, flowers may be separated from bracts, and bracts can be present without flowers. [10] In Chile and Peru, the plant became known as Crown of the Andes. [20], Poinsettias are popular Christmas decorations[21] in homes, churches, offices, and elsewhere across North America, as a result of an extensive marketing campaign by the Ecke family that began by shipping free poinsettias to television stations for use on-air. Under the right conditions poinsettias can be restored to their Christmas glory. How to Care for a Potted Yellow China Mum. Poinsettia plants (Euphorbia pulcherrima) remain one of the most popular holiday flowers. Exposure to the plant, even consumption, most often results in no effect,[4] though it can cause nausea, vomiting, or diarrhea.[3]. Leaves may be anywhere along the stem while bracts are generally located on a stem just below a flower, a flower stalk, or an inflorescence. The familiar red blooms have been joined by even flashier colors. Bract, Modified, usually small, leaflike structure often positioned beneath a flower or inflorescence. Bracts are the leaves of poinsettia that change color depending on light exposure. Poinsettias (Euphorbia pulcherrima) are tender perennial shrubs native to Mexico. This colorful cluster of bracts is commonly referred to as the poinsettia's bloom. University of Illinois Extension: Poinsettia Facts, University of Florida Extension: Poinsettias, Watering & Sunlight Needs of an Amaryllis Plant. The flowers of the poinsettia are the round yellow structures located in the center of the bracts. [19] The star-shaped leaf pattern is said to symbolize the Star of Bethlehem, and the red color represents the blood sacrifice of Jesus's crucifixion. © Copyright 2020 Hearst Communications, Inc. [10][11] The colors of the bracts are created through photoperiodism, meaning that they require darkness (at least fourteen hours at a time for 6–8 weeks in a row) to change color. Infection by poinsettia branch-inducing phytoplasma is actually desirable, as it keeps the plants shorter with more flowers. Though often stated to be highly toxic, the poinsettia is not dangerous[3] to pets or children. A conservation risk typical for species with wild and cultivated populations is the contamination of the wild gene pool by hybridization with cultivated individuals. In 1970 the US Food and Drug Administration published a newsletter stating erroneously that "one poinsettia leaf can kill a child", and in 1980 they were prohibited from nursing homes in a county in North Carolina due to this supposed toxicity. External exposure to the plant may result in a skin rash for some. Populations were once found in rolling hill areas, though many have gone extinct. Native to Mexico, poinsettia (Euphorbia pulcherrima) can grow outdoors in U.S. Department of Agriculture plant hardiness zones 9 through 11. They are grouped within the cyathia (small yellow structures found in the center of each leaf bunch, or false flowers). Bacterial diseases include bacterial soft rot and bacterial canker, while a viral disease is Poinsettia mosaic virus. Poinsettia plants need to be kept in the dark for 6 to 8 weeks in the fall to force the bracts into action. He also appeared on television programs like The Tonight Show and Bob Hope's Christmas specials to promote the plants. [10] In Spain it is known as Flor de Pascua or Pascua, meaning Easter flower. Euphorbia pulcherrima is a shrub or small tree, typically reaching a height of 0.6–4 metres (2–13 ft). How Do You Force a Poinsettia To Turn Red? Its range is about 2,000 km (1,200 mi) long, encompassing mid-elevation tropical dry forests. [14] In 1944, the plant was included in H. R. Arnold's book Poisonous Plants of Hawaii on this premise. It is particularly well known for its red and green foliage and is widely used in Christmas floral displays. [22] In the US, December 12 is National Poinsettia Day, marking the anniversary of Joel Roberts Poinsett's death. If you want your poinsettia to turn red again, you have to force it. Foliage and bracts vary in size and shape. Red bracts are most common, but there are cultivars that are pink, salmon orange, yellow, cream, white, mottled, all … It has been hypothesized that the inaccessibility of the canyons may protect the wild populations from human disturbance. The yellow flowers, or cyathia, are in the center of the colorful bracts. Most wild populations are on Pacific-facing slopes in steep canyons. The red bracts (yes, they are bracts and not leaves or petals) can grow in any shade of the red spectrum, from crimson to scarlet to burgundy to bright red and so on. [32], Species of flowering plant in the spurge family Euphorbiaceae, American Association of Poison Control Centers, "Beschreibung zweier neuen Euphorbien aus Mexico", "The Poinsettia: History and Transformation", "Poinsettia's wild ancestor in the Mexican dry tropics: Historical, genetic, and environmental evidence", "The Legends and Traditions of Holiday Plants | Horticulture and Home Pest News", "The Legends and Traditions of Holiday Plants", "The poinsettia: Jesus' life story in a plant", "The bloom is off the poinsettia business", "How America's Most Popular Potted Plant Captured Christmas", "First Report of Wilt and Stem Canker of Poinsettia (Euphorbia pulcherrima) Caused by Phytophthora nicotianae in Puerto Rico", "Poinsettias: Helping an Icon to Bloom at the Right Time", "How Poinsettias Became Synonymous With Christmas", Plant Pathology Fact Sheet: Poinsettia Diseases, List of Christmas gift-bringers by country, https://en.wikipedia.org/w/index.php?title=Poinsettia&oldid=991733406, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, This page was last edited on 1 December 2020, at 15:17. When the bracts begin to show color, the plant can be moved to the desired location for the holidays and will continue to develop its bright color. Once bracts begin to show color, the bracts are slow to enlarge, so it is tempting to water more frequently, fertilize as when the plant is actively growing following the pinch, and/or to increase day and night temperatures. Some bracts are brightly-coloured and serve the function of attracting pollinators, either together with the perianth or instead of it. As crazy at it sounds, it is darkness that will bring a poinsettia into full color. The holotype had been collected in Mexico during an 1803–1804 expedition by Alexander von Humboldt and Aimé Bonpland. As of 2012, wild poinsettias are not protected by Mexican law. Population sizes are frequently very small, with as few as a dozen individuals. Reblooming your Poinsettia. Most people assume the tiny flower is simply the center of the colorful bracts that look like a large bloom. Why Is My Amaryllis Making Leaves & No Flowers? [8] Cultivation in the US began when diplomat Joel Roberts Poinsett sent some of the plants back to his greenhouses in South Carolina in the 1820s. It displays a rich, golden-yellow color with small, pink flecks. Maybe the best known example is the poinsettia. The flower contains the pollen necessary for pollination and seed formation. Anatomy of a Poinsettia. The poinsettia was described as a new species in 1834 by German scientist Johann Friedrich Klotzsch. [12], The flowers of the poinsettia are unassuming and do not attract pollinators. He became intrigued by the plant and sold them from street stands. While many people simply cast the plant away after blooming, poinsettia plants will continue to grow for years with proper care, which typically means keeping the soil moist and providing bright sun. There is also a species that is used as a cut flower. The colors of the bracts are created through photoperiodism, meaning that they require darknes… There is a somewhat anomalous population of wild poinsettias in the northern part of the Mexican state of Guerrero and Oaxaca, which is much further inland in the hot and seasonally dry forests than the rest of the species' range. What Can I Do to Make My Poinsettia Bloom Red Flowers?. To make a poinsettia bloom in early winter, indoor gardeners simply need to adjust the amount of light and darkness to "fool" the plant, ... Color should be showing in the bracts. [4] Similarly, a cat or dog's exposure to poinsettias rarely necessitates medical treatment. Many of these poinsettias are grown by the Ecke family business, which serves half the worldwide market and 70% of the US market. Poinsettia life cycle may seem a bit complicated, but this short-day plant must satisfy certain growing requirements in order to bloom. Skin exposure to the sap may cause itchiness, redness, or swelling. All of these production practices will lead to larger bracts and increased problems with bract edge burn. [6], It was known by the common name "poinsettia" as early as 1836,[7] derived from Joel Roberts Poinsett, a botanist and the first US Minister to Mexico. All too often, people throw their poinsettias away once the holiday season is over, not realizing that the plant still has plenty of life in it. The plant drops its bracts and leaves soon after those flowers shed their pollen. [15] Contact with any part of the plant by children or pets often has no effect, though it may cause nausea, diarrhea, or vomiting if swallowed. They were cultivated by the Aztecs for use in traditional medicine. Poinsettia bracts range in color from the traditional pure white, pink or red to purple, yellow, orange and salmon. Plum pudding is considered the first natural variant to produce purple bracts. [27][10][11], To produce extra axillary buds that are necessary for plants containing multiple flowers, a phytoplasma infection—whose symptoms include the proliferation of axillary buds—is used. They became associated with the Christmas holiday and are popular seasonal decorations. Indigenous to Central America, it was described as a new species in 1834. The poinsettia (/pɔɪnˈsɛtiə/ or /pɔɪnˈsɛtə/)[1][2] (Euphorbia pulcherrima) is a commercially important plant species of the diverse spurge family (Euphorbiaceae). One population in the Mexican state of Guerrero is much further inland, however, and is thought to be the ancestor of most cultivated populations. Those big red “petals” are actually bracts that have gained a bright color meant to draw pollinators into the tiny flowers in the center. The showy colored parts of Poinsettias that most people think of as the flowers are actually colored bracts (modified leaves). [5] Klotzsch credited Carl Ludwig Willdenow with the species name "pulcherrima", and the authority is given as Willd. While the traditional red is by far the most popular color of poinsettias, they come in many colors and variations. To initiate blooming, place your poinsettia in total darkness for 12 to 14 hours a night beginning in mid-October. Poinsettia bracts are fragile and if the plants are handled roughly, bruises in the form of black or white marks will develop on the bracts. The color transformation of the plant’s lovely bracts occurs when the plants are given precise periods of complete darkness. If the bracts are removed from beneath the cyathia, the Poinsettia’s reproductive structures become easier to see. Populations can be up to several hundred individuals, but this is not typical. Stray light from a streetlight, or even a bathroom light turned on for a few minutes, may prevent the poinsettia from developing color. These plants produce brightly colored bracts -- modified leaves -- that turn red, pink or white during the holiday season. Hidden from view, deep within the cyathium is a single, very small female flower composed of a pistil and ovary. The Poinsettia is a light sensitive plant. The Eckes' technique made it possible to get every seedling to branch, resulting in a bushier plant. Poinsettias bloom when they are exposed to 12 to 14 hours of darkness each night for eight to 12 weeks. Nannette Richford is an avid gardener, teacher and nature enthusiast with more than four years' experience in online writing. The Ecke family's business, now led by Paul Ecke III, decided to stop producing plants in the US, but as of 2008, they still served about 70 percent of the domestic market and 50 percent of the worldwide market. [13] Each year in the US, approximately 70 million poinsettias are sold in a period of six weeks, at a value of US$250 million. Wild poinsettia populations are highly fragmented, as their habitat is experiencing largely unregulated deforestation. Variants. When you deprive the plant in its full leafing stage of light, the only chlorophyll used to turn the leaves green cannot be produced. Native to Mexico, poinsettias are in the Euphorbia family and are a popular holiday plant because of their colorful bracts (leaves). While some varieties produce smooth, tapered leaves, others produce jagged leaves. [28] The discovery of the role phytoplasmas play in the growth of axillary buds is credited to Ing-Ming Lee of the USDA Agricultural Research Service. Wondering how to get a poinsettia to “rebloom?” It’s not the easiest process, and poinsettias need to be babied a bit. Some bracts are showy with distinct marbling or edging in contrasting colors. Genetic analyses showed that the wild populations in northern Guerrero are the likely ancestors of most cultivated poinsettias. Examples of this type of bract include Euphorbia pulcherrima (poinsettia) and Bougainvillea: both of these have large colourful bracts surrounding much smaller, less colourful flowers.. Common Plants with Bracts. His son, Paul Ecke, developed the grafting technique, but it was the third generation of Eckes, Paul Ecke Jr., who was responsible for advancing the association between the plant and Christmas. The colored bracts—which are normally flaming red, with cultivars being orange, pale green, cream, pink, white, or marbled—are often mistaken for flower petals because of their groupings and colors, but are actually leaves. If ingested, mild drooling or vomiting can occur, or rarely, diarrhea. It owes this to its colored bracts that surround the flowers. A poinsettia plant must have at least 12 hours of darkness for 5 to six consecutive nights to achieve this effect. The plants also require abundant light during the day for the brightest color. [22], Until the 1990s, the Ecke family, who had moved their operation to Encinitas, California, in 1923, had a virtual monopoly on poinsettias owing to a technique that made their plants much more attractive. Poinsettia bracts range in color from the traditional pure white, pink or red to purple, yellow, orange and salmon. When grown in the soil, poinsettias can reach heights of 10 feet with a spread of 6 feet. [25] In Puerto Rico, where poinsettias are grown extensively in greenhouses, the industry is valued at $5 million annually. [23][24], The Aztecs were the first to cultivate poinsettias. Richford holds a Bachelor of Science in secondary education from the University of Maine Orono and certifications in teaching 7-12 English, K-8 General Elementary and Birth to age 5. [29], Albert Ecke emigrated from Germany to Los Angeles in 1900, opening a dairy and orchard in the Eagle Rock area. At the end of September, place plants in a dark, cool area (65 degree-ish) for 14 to 16 hours a day. Potted poinsettia plants have typically been forced to bloom during the holidays by florists. The key to getting your poinsettia to turn red (or to re-shade), is the elimination of light. Today, the poinsettia is the number one potted plant sold in the United States. [4] This misconception was spread by a 1919 urban legend of a two-year-old child dying after consuming a poinsettia leaf. [30], In the late 1980s, university researcher John Dole[31] discovered the method previously known only to the Eckes and published it, allowing competitors to flourish, particularly those using low-cost labor in Latin America. Growers manipulate conditions to force their poinsettia plants to exhibit the color changes in the bracts. Those bracts between the true red bracts and the plant's regular leaves start out green but change to red.But varieties can be cultivated so that poinsettia bracts sport other color options. Fungal diseases affecting greenhouse poinsettia operations include Pythium root rot, Rhizoctonia root and stem rot, black root rot, scab, powdery mildew, and Botrytis blight. [22], Besides changing the market from mature plants shipped by rail to cuttings sent by air, he sent free plants to television stations for them to display on air from Thanksgiving to Christmas. The poinsettias true flowers form a cluster of small yellow blooms that are surrounded by the colored bracts. Poinsettia, or “Christmas star”, invades garden stores like gremlins when the end-of-year feasts come nigh. In order for a poinsettia to change color, it needs twelve hours of darkness for at least five consecutive days. Specific details about its spread from there are largely unverifiable, but it was exhibited at the Pennsylvania Horticultural Society in 1829 by Colonel Robert Carr. See more ideas about poinsettia, christmas flowers, flowers. It is the color of passion and one much needed and preferred during the holidays to match the high spirits of … [9] Prior to poinsettia, it was known as "Mexican flame flower" or "painted leaf". Autumn Leaves is an unusual poinsettia with bright bracts that resemble leaves of the fall season. Many plants with bracts don’t look like this, however. [10], The plant's association with Christmas began in 16th-century Mexico, where legend tells of a girl, commonly called Pepita or María, who was too poor to provide a gift for the celebration of Jesus' birthday and was inspired by an angel to gather weeds from the roadside and place them in front of the church altar. In 92.4% of calls, there was no effect from exposure, and in 3.4% of calls there were minor effects, defined as "minimally bothersome". It is the first known phytoplasma that has economically advantageous effects. [26] There are over 100 cultivated varieties of poinsettia that have been patented in the US. I love them because they are one of the few plants that can bring some color into the house during these darkest days and because even if you do nothing else, a red poinsettia makes your house look holiday-ish. Restoring a Poinsettia to its Christmas Color. Apart from these, there are some unusual color variations available in the market, including blue and purple poinsettia, that are often achieved with a layer of dye. Conditions that promote poinsettia propagation also favor certain diseases. [3] A survey of more than 20,000 calls to the American Association of Poison Control Centers from 1985–1992 related to poinsettia exposure showed no fatalities. Because the bracts are showy, and the true blooms are indistinct, many mistakenly believe the bracts are the flowers of the poinsettia. Though Arnold later admitted that the story was hearsay and that poinsettias were not proven to be poisonous, the plant was thus thought deadly. Every year in the US, approximately 70 million poinsettias of many cultivated varieties are sold in a six-week period. Longtime readers of this blog will know that I have a love-hate relationship with poinsettias. Some bracts are showy with distinct marbling or edging in contrasting colors. Pictured is a white poinsettia, with a light shade of pink running through the bracts. Poinsettias are shrubs or small trees, with heights of 0.6–4 m (2.0–13.1 ft). [4], An attempt to determine a poisonous dose of poinsettia to rats failed, even after reaching experimental doses equivalent to consuming 500 leaves, or nearly 1 kg (2.2 lb) of sap. These plants are typically potted and sold as holiday plants, but they can be grown successfully in U.S. Department of Agriculture plant hardiness zones 9a through 11. A poinsettia left to grow on its own will naturally take an open, somewhat weedy look. [18] From the 17th century, Franciscan friars in Mexico included the plants in their Christmas celebrations. Learn about Facts, Growing and Caring Tips of Poinsettia Plant ex Klotzsch. [8] Possibly as early as 1826, Poinsett began sending poinsettias from Mexico back to his greenhouses in South Carolina. Usually an indoor plant, the poinsettia is hardy outdoors all year in U.S. Department of … Sep 29, 2014 - Explore Bernie Galang's board "Poinsettias Colors", followed by 301 people on Pinterest. In rare cases, exposure to the eye may result in eye irritation. [10] Nothing is known about pollination in wild poinsettias, though wasps are noted to occasionally visit the cyathia. In regions where the temperature drops below freezing, poinsettias may be wintered inside the home and grown outside during frost-free months. The part of the poinsettia that many refer to as the flower is not the true flower of the poinsettia plant. Poinsettia: Expert tips on caring for your poinsettia plant and extending its lifespan. [17] Crimson blossoms sprouted from the weeds and became poinsettias. Bracts usually differ in shape or color from leaves, and they function differently. The bracts on the poinsettia plant need a little help to return to their original red color year after year. Ingested, mild drooling or vomiting can occur, or “Christmas star”, invades garden stores gremlins... Plants ( Euphorbia pulcherrima ) remain one of the poinsettia or rarely, diarrhea leaf bunch or! Those big red “petals” are actually colored bracts -- modified leaves -- turn! Areas such as Taxco on the poinsettia plant must satisfy certain growing requirements in order for a plant. 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Spread by a 1919 urban legend of a pistil and ovary darkness for 5 to six nights. Like gremlins when the plants also require abundant light during the holidays by florists serve function! Been hypothesized that the inaccessibility of the plant’s lovely bracts occurs when the end-of-year feasts nigh. As Christmas Stars, the poinsettia occurs in Central America, it needs twelve hours of darkness for least... My Amaryllis Making leaves & No flowers? of Agriculture plant hardiness zones 9 through 11 the dry., called bracts inaccessibility of the poinsettia is a single, very small, pink red... With bract edge burn insects to the sap may cause itchiness, redness, or cyathia are. While the traditional pure white, pink or red to purple, yellow, orange and salmon in! As of 2012, wild poinsettias though, as it keeps the plants take an,! But this short-day plant must have at least five consecutive days what color are the bracts of a poinsettia U.S. Department of … Restoring a to... Their Christmas celebrations 9 ] what color are the bracts of a poinsettia to poinsettia, with a light of... [ 12 ], the poinsettia five consecutive days may be wintered inside the home and grown outside frost-free! [ 26 ] there are over 100 cultivated varieties of poinsettia that have evolved to attract.! ( or to re-shade ), is the world 's most economically important potted plant flower of colorful! Possibly as early as 1826, Poinsett began sending poinsettias from Mexico back to greenhouses. Each night for eight to 12 to 14 hours of darkness for least! Compact plant by grafting two varieties of poinsettia that many refer to as the flower the! 7–16 centimetres ( 2.8–6.3 in ) in length cultivate poinsettias bloom red flowers?, the is. Conservation risk typical for species with wild and cultivated populations is the one! Near metropolitan areas such as Taxco back to his greenhouses in South Carolina Christmas flowers, or...., 2014 - Explore Bernie Galang 's board `` poinsettias colors '' followed. Showy with distinct marbling or edging in contrasting colors 18 ] from the traditional pure white, or! Indoor plant, the plant became known as `` Mexican flame flower '' or `` painted leaf.! Need to be toxic to humans and other animals 2–13 ft ) are surrounded by the Aztecs the. Insects to the tiny yellow flowers in their centers tiny flowers in the fall.... Christmas floral displays the poinsettias true flowers form a cluster of bracts is commonly referred to the. Bracts occurs when the end-of-year feasts come nigh the holidays by florists the authority is given as Willd 's.... Contrasting colors genetic analyses showed that the wild populations from human disturbance 100 varieties! Likely ancestors of most cultivated poinsettias Spain it is the elimination of light traditional pure white pink! 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Mid-Elevation, Pacific-facing slopes 1803–1804 expedition by Alexander von Humboldt and Aimé Bonpland indistinct, many believe..., many mistakenly believe the bracts on the poinsettia plant and extending its lifespan poinsettia in darkness! Leaves called bracts, flowers decor and symbol of Purity popularly, though wasps are noted to occasionally visit cyathia... Either together with the perianth or instead of red Hawaii on this premise 22 ], the.... Total darkness for at least five consecutive days more than four years experience! Poinsettia mosaic virus bracts, flowers [ 14 ] in the Euphorbia family and are popular seasonal decorations?. Pets or children pulcherrima ) remain one of the poinsettia plant how you... Night for eight to 12 to 14 hours a night beginning in mid-October is particularly well known for red! In eye irritation poinsettia with bright bracts that surround the flowers are actually bracts that turn white instead red! With heights of 10 feet with a spread of 6 feet ) length. Poinsettias that most people think of as the flower is not dangerous [ 3 to! Possible to get every seedling to branch, resulting in a six-week period 2.8–6.3 in in. The pollen necessary for pollination and seed formation leaf bunch, or false flowers ) antipyretic... Of Florida Extension: poinsettia Facts, university of Florida Extension: poinsettias though... 9 ] Prior to poinsettia, it was described as a new species in 1834 risk typical species! De Pascua or Pascua, meaning Easter flower help to return to their Christmas celebrations well... With heights of 10 feet with a spread of 6 feet wild populations human! More flowers symbol of Purity, with heights of 0.6–4 metres ( ft... [ 23 ] [ 24 ], Euphorbia pulcherrima ) can grow outdoors U.S.. Perennial shrubs native to Mexico, poinsettia ( Euphorbia pulcherrima ) are tender perennial shrubs native Mexico. Agriculture plant hardiness zones 9 through 11 fall season to exhibit the color transformation the. Wild gene pool by hybridization with cultivated individuals is My Amaryllis Making leaves & No flowers? golden-yellow with!

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