
Poinsettia is a perennial shrub native to Mexico. It is most often grown as an annual for winter holiday display, but it can also be grown as a perennial garden shrub in regions where winter temperatures remain above 50 degrees Fahrenheit. The familiar red species has been joined by even flashier hues thanks to hybridizers who have expanded the range of colors from the familiar scarlet to white, cream, salmon, yellow, and pink. Its blooms are a cluster of tiny yellow flowers surrounded by large brilliant (usually red) floral bracts, which are modified leaves. Also known as Mexican flameleaf, these plants are forced into bloom in time for the holiday season, and they require specific care to look their best into the new year and beyond.
Contrary to a popular myth, poinsettias are not seriously toxic to people or pets. At most, they are mildly toxic to cats and dogs who ingest the plant material.
Poinsettia Care
There is no need to discard your poinsettia come January—you can keep it healthy and vigorous throughout the year with the right care. The trick: Provide enough filtered sun, warmth, and water, and your poinsettia will thrive. If you’re especially motivated and follow a regimen of specific care, your plant might rebloom next holiday season.
If grown as a landscape shrub in warm climates, poinsettia requires a sunny location and well-drained soil. Frequent pinching back of the stem tips will ensure seasonal color in winter.

Light
Poinsettia do best when placed in bright, diffused sunlight, so place your plant near a sunny window where it will receive at least six to eight hours of diffused light per day. Although the plants can survive with fewer hours of light, they won’t be as vigorous or as long-lived. Be aware that exposure to direct sunlight can burn bracts and leaves.
Soil
While poinsettias are typically purchased already potted from a garden center or nursery, if you’re planting (or replanting) a poinsettia, choose a well-draining peat-based potting soil for best success. In warm climates (zones 9 to 11), poinsettias can be planted into the landscape, where they thrive best in a well-drained, acidic to neutral soil.
Water
Water your poinsettia whenever the soil surface feels dry to the touch. Saturate the soil completely until water runs through the drainage holes in the bottom of the pot, but do not let the plant sit in water. If the pot was wrapped in decorative foil, be sure to poke a few holes through the bottom to allow excess water to drain away. Overwatering is the quickest way to kill a poinsettia, and wilting leaves and rotted plant roots are usually signs of overwatering.
Temperature and Humidity
To keep your poinsettia in bloom as long as possible, maintain a temperature of 65 to 75 degrees Fahrenheit during the day. A slight drop in temperature at night will not hurt the plant. However, cold drafts, allowing the leaves to touch a cold window, or more importantly, a lack of adequate light, can injure the leaves and cause premature yellowing and leaf drop.
Lack of humidity during dry seasons, particularly during winter, is an ongoing problem for most houseplants, including poinsettias. If your home tends to be dry, consider investing in a small space humidifier to increase humidity levels in the area surrounding your poinsettia.

Fertilizer
Do not fertilize these plants during their blooming period. When keeping the plant throughout the year, you can begin fertilizing in the spring at half-strength when there’s no growth, but not until then. Feed every three to four weeks until the plant is re-established.
How to Get Poinsettias to Rebloom
If you want to grow your poinsettia throughout the year and force reblooming for the next holiday season, you must follow a very specific process throughout the year. Achieving rebloom is not easy, so don’t be disheartened if you don’t succeed on your first try. Follow this schedule for best results:
December to Early Spring
Water your holiday poinsettias, keeping them moist but not soaked. Then, starting in early spring, do the following:
Gradually decrease waterings, allowing the soil to dry out between waterings. Be careful that the stem of your poinsettia does not begin to shrivel—this is a sign the plant is too stressed and is dying.
In a week or two, when the plant has acclimated to this drying process, move it to a cool spot, such as the basement or a heated garage. Keep the temperature around 60 degrees Fahrenheit.
May
In mid-May, do the following:
Cut the stems back to about four inches and repot your poinsettia into a slightly larger container filled with new potting soil.
Water well and place the newly-potted plant in front of the brightest window you have, and once again keep it at a temperature of 65 to 75 degrees Fahrenheit.
Continue watering whenever the surface of the soil feels dry and watch for new growth.
Once new growth appears, begin fertilizing every two weeks with a complete fertilizer.
Summer
Come summer, move your potted poinsettia outdoors. Keep it in a partially shaded location and maintain your watering and fertilizing schedule.
In early July, pinch back each stem by about one inch to encourage a stout, well-branched plant. If left unpinched, the poinsettia will grow tall and spindly.
By mid-August, the stems should have branched and leafed out. Once again, pinch or cut the new stems, leaving three to four leaves on each shoot. Bring the plant indoors and place it near your brightest window.

October
Poinsettias are short-day plants, meaning their bud set is affected by the length of daylight. To rebloom, poinsettias need about 10 weeks with 12 to 14 hours of absolute darkness per day. You will have to artificially create these conditions and remain diligent. At the very start of October, do the following:
Keep your plant in complete darkness from 5 p.m. to 8 a.m.—any exposure to light will delay blooming.
Use an opaque box or other material to block out all light, including artificial light. Many people place their plants in a closet, but if any light gets through cracks or if you open and use the closet, the exposure to light will affect the bud set.
Move the plant back to the sunny window during the daytime and continue watering and fertilizing.
November and December
About the last week of November, stop the darkness treatment and allow the plant to remain near the window. You should see flower buds at this point. Stop fertilizing around mid-December. Keep watering and treat your plant the way you did when you first brought it home in bloom. If all has gone well, bracts should begin to show color.
Types of Poinsettias
Besides the traditional red bracts, newer hybrids have been bred in a variety of colors, including shades of white, cream, yellow, salmon, purple, burgundy, and pink. Note that some unusual colors, such as blue, are produced using dyes, and if the plant reblooms, bracts will be their natural color.
At any given time, there are at least 100 different poinsettia cultivars to choose from. Some recent favorites (along with some long-time standards) include:
‘Christmas Eve’: This is a long-time favorite with pure red flowers, known for its long color season.
‘Plum Pudding’: This is the first purple hybrid introduced to the market.

‘Alaska White‘: As the name suggests, this is a pure white cultivar that blends well with red varieties.

‘Jingle Bell Rock’: ‘This variety is a mixture of cream and bright red with glossy dark green leaves.

‘Candy Cinamon’: This cultivar has dappled pink foliage, making for a softer appearance.

‘Golden Glow’: This soft yellow variety is compact and known to be more heat tolerant than other forms.

‘Lemon Drop’: This cheery variety has bright yellow bracts.
‘Gold Rush’: This stunning variety combines shades of pink and gold.
















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