Water: Poinsettias like moist, but not wet, soil. If need be, mark these steps on your calendar: Through March, just water your poinsettia as usual. Poinsettias are tropical plants. In order to ensure they survive freezes in borderline zones, it may be necessary to take some precautions. Indoor temperatures of 65-70 degrees F is ideal. In colder climates, Poinsettias are grown as indoor plants. Growers may use a fertilizer after the holidays. All rights reserved. If you live in USDA plant hardiness zones 10 through 12, you can begin planting poinsettia outdoors. When outdoor temperatures are consistently over 55°F (12°C), you can grow your poinsettia outdoors for the summer months (or just keep it indoors). Regents of the University of Minnesota. Poinsettias grow well in moist soil and temperatures between 65 and 70 degrees F. They can be grown outdoors during summer. Avoid placing poinsettias where temperature fluctuates or may be drying, such as near cold drafts, heat ducts, fireplaces, fans, space heaters, etc. Poinsettia can be cut back during winter. Nevertheless, the poinsettia … Discontinue the short day/long night treatment. It can be tricky to find that balance but do your best. As new growth begins, reduce the fertilizer to one-quarter the recommended strength. The largest breeder of poinsettias is Ecke Ranch in California, home of the world’s leading poinsettia variety ‘Prestige’. They don't take up much space and are easy to care for. In Australia, the pots of poinsettia we buy at Christmas are actually forced to flower at this time. Place a saucer under the pot, and drain the saucer if water starts to collect in it. The plants must experience at least 14 hours of total darkness in order to turn. Starting on or near Sept. 21, give the plant 16 hours of uninterrupted darkness (put the plant in a closet, basement or under a box) and 8 hours of bright light every day. They need a minimum temperature of 13-15°C (55-59°F). Poinsettias are only hardy in USDA zones 10-12, but will tolerate a VERY light frost. Set plant in a sink and water thoroughly, allowing the plant to drain completely. Cut it back to 4 inches, leaving one to three leaves on each stem, and begin fertilizing every two weeks. Keep the poinsettia soil moist, but not soggy. Also try to keep the temperature between 65 and 70 degrees during the day, keeping in mind that the area around a drafty window can be quite a bit cooler than the rest of the room. Be careful when transporting poinsettias from the shop to your home in the winter, as the cold outdoor temperatures can damage the foliage. Therefore, while growing a poinsettia outdoors may be an easy task in some tropical and semi-tropical areas, making it turn color can be an entirely different story. The warmer you keep your house, the faster your Poinsettia flowers will open up. Move indoors to a spot that gets at least six hours of direct light daily, preferably more. Just be sure that temperatures in your area don?t drop below 45 degrees F. (7 C.). Neil O. Anderson, professor of horticultural science, UMN College of Food, Agricultural and Natural Resource Sciences, and Leonard Perry, Extension professor, University of Vermont reviewed this content. Feed your poinsettia every 3-4 weeks to keep plant healthy and provide the necessary nutrients for new growth. Question by oceanlover61 March 27, 2001 . Two important factors in selecting a poinsettia are where it was grown and how long it had to travel, Harper said. Watering and fertilizing are other key areas to consider when growing a poinsettia outdoors. You do not need to fertilize your poinsettia during the holidays. Maintain even temperatures around the poinsettias if you’re growing them indoors. If the plant is potted, but grown outdoors, then the springtime is the time to re-plant it in a slightly larger container. Average frost season for Auckland: 13th June to 6th August. Even a short trip to the car in blustery cold weather can shock the plant (hence the foil and celophane wrappers they're often sold in). Start fertilizing your plant when you see new growth (new green leaves, stems, bracts). When the … Generally, this process should begin six to eight weeks before the grower wants the most vibrant colors. Thanks for your help! Can Poinsettias Grow Outside – Caring For Outdoor Poinsettia Plants. While most people plant poinsettias outdoors, you can also grow them indoors, which is ideal for those who are living in cold climate. Continue to water and fertilize but increase the amount to accelerate growth. Never allow poinsettias to get so dry that they wilt. As indoor plants, Poinsettias need exposure to the morning sun and shade during the hotter part of the day. Poinsettias also come in burgundy (dark red), pink, white, marble and variegated. They range from creamy white to pink to the traditional bright red. Set the poinsettia cuttings into a tray or pot of propagating mix or coarse washed sand. Indoor light: Put in a south, east or west window where the plant will receive bright daylight. Continue watering as needed January through March. Generally, in order to ensure the plant remains safe from cold temperatures, the United States Department of Agriculture recommends a growing zone of no lower than 10, which usually means temperatures stay higher than 40 degrees Fahrenheit (4.44 Celsius). In late spring or early summer, transplant your poinsettia into a larger container (about 2 to 4 inches bigger than the original pot) or into a part-sun garden bed. Never expose them to temperatures below 55 degrees Fahrenheit. Poinsettias grow well in moist soil and temperatures between 65 and 70 degrees F. They can be grown outdoors during summer. They are most commonly used for decorating during the winter holidays, but are also attractive as green plants throughout the year. During the shorter, cooler days from late October until Christmas, humidity levels in the greenhouse are often high and poinsettias use less water from the growing medium, causing it to dry out more slowly. If your plant has become long and leggy, cut back to about five inches tall to promote more compact growth. Will pruning keep it from getting "leggy?" Poinsettias are shade lovers. Avoid putting it near air vents, doors and windows, … In pots, use a soil mix with a good amount of organic matter such as peat moss. During the summer, it is essential that the plant is not placed in direct sun. Continue to provide adequate light and water for prolonged bloom for several weeks. Give your poinsettias life beyond the holidays with this year-round guide that will keep them thriving. If your poinsettia is growing in a pot when you get it, keep it indoors in a sunny room where the temperatures range from 65 to 80 degrees F. during the day, and no lower than about 60 degrees F. at night. Remove leaves from the soil surface, and add a little more potting soil if the roots are visible. Poinsettias flower naturally in winter, but can be forced to bloom in the Southern Hemisphere during Christmas. Fertilize with an all-purpose household plant fertilizer. If yes, when? University of Minnesota Extension discovers science-based solutions, delivers practical education, and engages Minnesotans to build a better future. Do not place the plants adjacent to heat vents or on a drafty window sill. Poinsettias change color in response to shorter winter days. A: Yes, you can plant the holiday houseplants outdoors, preferably in a sunny or partially sunny, protected area with a well-draining soil. When roots have formed, pot plants up individually. Julie Weisenhorn, Extension educator, horticulture. For more information about poinsettia plants outdoors, click here. The plant needs specific conditions in order to make it turn the deep red and green it is famous for around the Christmas holidays. © Continue keeping the plant in a bright, sunny window. In the wild, they grow as … Therefore, while growing a poinsettia outdoors may be an easy task in some tropical and semi-tropical areas, making it turn color can be an entirely different story. Even if they are damaged by cold weather, poinsettias may eventually come back. Put the plant in a sunny area that gets at least six hours of direct light. In the garden, plant into a garden bed with well-drained soil that gets 4 to 5 hours of sun per day. Poinsettia flowers are actually made up of the bracts, which look like petals, and the tiny yellow flowers in the center, called cyathia. Poinsettias will suffer damage if they are exposed to temperatures below 50 degrees F. Freezing temperatures will kill poinsettias. This may seem strange due to their holiday connotations, but poinsettias are tropical plants. By Teo Spengler. At the end of July, you should prune your plant again. Keep it in a partially shaded location and maintain your watering and fertilizing schedule. We’re going to blunt here: As poinsettias are tropical plants grown in greenhouses, they may not be easy to get to rebloom. Outdoor light: Part sun, 4 to 6 hours daily. The color is in the bracts or modified leaves. Answer: Some gardeners have real success keeping poinsettias for another year, but others find them a challenge. Poinsettias have to be forced into putting on a display of colour out of season in the Southern Hemisphere. Never allow poinsettia pots to sit in excess water. Remove from decorative foil or outer pot before watering. If you’re growing poinsettias in containers outside the ground, do not let them sit in drainage water. Poinsettias need a period of uninterrupted long, light … It is also important to prune plants, generally in the late winter or early spring. Growing Poinsettias Outside - Knowledgebase Question. Make sure the plant has good drainage. In their native Mexico, poinsettias bloom naturally during winter at Christmas. June: Move the poinsettia outside, pot and all. Save your Poinsettia this holiday season to grow year-round as a houseplant. The reduction in light prevents the plant from producing chlorophyll, the pigment that makes plant parts green. The first thing to do is make sure the poinsettia will be in an area that does not get too cold. This will help maintain soil moisture and create a good growing environment for the roots. It is not an easy task, as it requires excluding light from the plant for a period of time while keeping the plant healthy. Finding good growing conditions is the secret. You can find poinsettias around the holidays to fit into almost any decorative scheme. There is also a species that is used as a cut flower. Wikibuy Review: A Free Tool That Saves You Time and Money, 15 Creative Ways to Save Money That Actually Work. Make sure your plant is in a pot that drains freely. If it is a particularly dry area, then watering may be necessary if the soil ever becomes dry to the touch. Its ability to hold on to its shape and colour for long periods of time enhance its value as an indoor colour option over … Poinsettias are not harmful to animal or human health. Outside, it will need to grow in a semi-shady location. Water your poinsettia thoroughly after transplanting. You will also find unusually colored poinsettias such as blue or purple in garden centers. 15th August to February are best months to plant subtropical plants. Poinsettias bloom when the days get shorter. In winter, a couple of hours of sun per day do not harm your plant. Poinsettia can be grown from stem cuttings taken in spring or summer: Wash off the milky sap in fresh water. Native to Mexico, poinsettias are in the Euphorbia family and are a popular holiday plant because of their colorful bracts (leaves). The lower night temperatures help the poinsettias keep their brilliant color. Many of these varieties excrete a white and milky sap, which is toxic. 2 Be realistic about the plant's appearance. San Diego, CA. In order for the leaves to turn before the holidays, having the proper amount of darkness is key for a poinsettia outdoors. When buying a Poinsettia look for the following qualities Bracts are the leaves of poinsettia that change color depending on light exposure. Poinsettias can be grown as attractive green plants, but most people are interested in making their green poinsettia colorful again and ready for the holidays. If you had planted the poinsettia outdoor on yesterday, please remove it and take it indoor, it need warmth, by place it near heater, until it recover. Provide lots of sunlight — a sunny window with east, west, or southern exposure is best. Depending on your climate, poinsettias tend to due better outside than in, so grow them outside where they get partial shade in the afternoon. Poinsettias are not poisonous, but the sap may cause dermatitis. Continue watering as before, waiting until potting soil is dry to touch, and never soaking or starving the plant. Growing Poinsettias Outdoors Growing a Poinsettia plant outdoors generally requires a minimum temperature of about 45°, but they grow best when night temperatures are about 60°. This changes the bracts to red, pink or white, depending on the poinsettia variety. Water your poinsettia when the surface of the soil is dry to the touch. The most popular red poinsettia sold in New Zealand, ‘Prestige’ was selected for its eye-catching, vibrant, dark-red colouring, which doesn’t fade like some of its predecessors. Beware: they don’t like cold weather or drafts. It may be possible to grow a poinsettia outdoors in zone 9, but that will require diligently taking precautions during sporadic freezes. Maintain night temperatures in the low 60 degrees F range. A poinsettia is a popular Christmas flower. Using warming lights is another way to stave off freezing temperatures for a few hours. Poinsettias are not poisonous, but the sap may cause dermatitis. Take 300mm stem cuttings, dip the ends in water and insert into potting mix. Root Growth: Poinsettias need a well-developed root system before growing cold. Poinsettia Has a Colorful Legend. Poinsettias need bright, but filtered light, away from strong sun and draughts. These diagnostic tools will guide you step-by-step through diagnosing a plant problem or identifying a weed or insect. Poinsettia plants like it on the warmer (not hot) side during the day and cooler at night. The colorful “flowers” of poinsettias are actually modified leaves called “bracts.”. The plant will begin to send out new shoots, and when winter comes around it may also flower again. 2021 The actual flowers are small and yellow in color. Keep moist for a few weeks until they take root. July: In early July, pinch back each stem by about one inch. The University of Minnesota is an equal opportunity educator and employer. After watering, discard any water that fills the container’s saucer. Some varieties have bracts with patterns in red and white, pink and white, or green and white and even bright orange. I have recently put a potted poinsettia plant outside and would like some tips on growing it outside here in San Diego. Cutting off fading portions of the branches, leaving at least 4 to 6 inches (10 cm to 15.25 cm) of the branch is recommended. Constant wetness will rot plant roots. Water plant when the soil surface feels dry to a light touch, or pot feels lightweight when lifted. Extension is expanding its online education and resources to adapt to COVID-19 restrictions. While growing a poinsettia outdoors is possible in some areas, it can be difficult to make them turn color in time for the holidays. Enjoy your "new" poinsettia. Too much water can kill a poinsettia. The sticky white sap can cause a skin rash, so gloves are recommended when working with these plants. Protect the plants from both cold and hot drafts from outside doors, heat registers or appliances. Poinsettias are named for Joel Robert Poinsett (1779-1851), a noted statesman and dedicated amateur botanist who first brought poinsettias to the United States from Mexico in 1825 while serving as ambassador. Colour indoors . Mar 13, 2020 4:24am . Poinsettias grow best in well-lit areas, but direct sun or hot lights can dry out the plants. Before you do so, you might want to repot it if it has outgrown the pot it came in. Any below freezing temperatures could kill the tropical plant. Check your plant for signs of insects, such as white fly, and manage them if you find them. Fertilizing during the holidays could affect the quality of the plant. Auckland have 15-18 wet days per month during June to August. If it gets too hot and dry, their growth might slow. Keep the soil from getting soggy. Do I prune it back? Poinsettias have been a holiday tradition in this country for many years. These are cream-colored varieties that are spray painted. In order to accomplish this, the grower may need to take the plant into a darkened room. There are more than 100 varieties that you can find throughout the world. Dr. Leonard Perry, Extension professor emeritus at the University of Vermont and author of Caring for Your Poinsettia Year-Round, developed an easy-to-follow poinsettia care calendar based on the holidays of the year. When you are growing poinsettia plants outside, choose a spot with slightly acidic, well-draining soil. Wash tools well after use as the sap can make tools sticky. For this reason, a windowsill is generally not an ideal location, as draughts can reach the plant via tilted windows. Continue to water and fertilize at the reduced rate. Any below freezing temperatures could kill the tropical plant. Don’t transplant poinsettia plants outdoors right after Christmas. It should neither be subjected to direct sun nor to strong draughts. As flowering shrubs, poinsettias can reach a height of up to ten feet. Once all of the leaves have died back, prune the bushes back to two buds and keep it … Prune off faded and dried parts of the plant. This is to encourage a stout, well-branched plant. Rotate the plant daily to give all sides even light. Some tips on growing Poinsettias: Poinsettias are tropical plants, and like at least 8 hours/day of direct light and temperatures above 65 degrees. The first thing to do is make sure the poinsettia will be in an area that does not get too cold. If you turn your heat back at night to around 60 degrees F, then your Poinsettias will be happier and last longer. See. But they should not be eaten. But let’s start by taking care of this holiday gift so it looks its best and, if we’re lucky, we’ll encourage it to rebloom, too! The poinsettia is a tropical plant native to Mexico. They are sometimes sprinkled with glitter. Do I fertilize? Flower forms vary as well with some looking similar to a rose. Start the cycle all over again after the new year. Planting poinsettias near buildings or covering them during colder times are both common tips. Move the plant outside for the summer and place in indirect light. Generally, poinsettias will require no supplemental outdoor watering. The colorful bracts attract insects to the flowers and will drop after pollination. Trim off two to three inches of branches to promote side branching. Poinsettias are one the most difficult to reflower after the initial display when purchased. For healthy growth, a poinsettia requires a bright, warm location. Make sure your new pot has good drainage. The day time temperatures in excess of 21 degrees C (70 degrees F) shorten the lifespan of Poinsettias. Cuttings from summer and winter prunings can be used to propagate new plants to grow indoors. They are native to Mexican forests. If left unpinched, the poinsettia will grow tall and spindly. “How can I make my poinsettia rebloom?” is a common question. If yes, when? Mix with water it at half the recommended strength. 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