Survive the Christmas It is already a challenge for our wallets, our diet, our digestion, our sleep, patience, hangovers, emotions... And we could go on. But all of that is nothing compared to the authentic adventure that the Poinsettia, that red-leaved plant, the botanical symbol par excellence of these holidays, which usually does not manage to survive beyond January. However, the key to its resistance lies in knowing how to take care of it well, because the Poinsettia is much more than an ornament: It is a living being that can accompany you in all its splendor long after Christmas.
What does the Christmas flower or Poinsettia look like?
His scientific name is Euphorbia pulcherrima, although it is also known as Poinsettia, Christmas flower and in some countries like Santa Claus o Federal StarThis plant is native to Mexico and Central America, where it grows up to 5 meters tall as a shrub, although its size is considerably reduced in pots. Interesting facts about this species: Its red, white, salmon or yellow leaves are not flowers, they are bracts, modified leaves whose function is to protect the small, yellow, true flowers that emerge in the center. The bracts acquire their intense color in response to periods of darkness, a natural process mediated by pigments called anthocyanins, which is why they are one of the most sought-after elements in Christmas decorations.
La poinsettia is deciduous, it loses its leaves in winter and its natural cycle is strongly influenced by light and temperature. Although most people grow it indoors, Their ideal habitat is the outdoors If the climate is temperate and free from severe frosts. The versatility of Euphorbia pulcherrima is remarkable: there are more than 100 varieties of different colors and shapes, making it a decorative option for any season.
Meaning and cultural curiosities of the poinsettia
- Name in Nahuatl: Cuetlaxochitl, which means 'flower that withers'.
- Symbolism: In Mexico, it's associated with purity, prosperity, and Christmas. In Argentina, it's called the federal star.
- Poinsettia Day: It is celebrated on December 12 in America.
- History: Its international popularity grew thanks to Joel Roberts Poinsett, U.S. ambassador to Mexico, who introduced it to other countries.
How to Choose a Healthy Poinsettia
- Avoid sudden changes in temperature during shoppingIf you're keeping it indoors, choose a location where it's already protected from the cold. If it's going to be outside, make sure it hasn't been in a much warmer environment than what it expects when you get home.
- Transport protection: Ask them to cover it with plastic for the trip home. The cold during the journey can be fatal.
- Look at the central flowers: Choose plants where the small yellow flowers are still closed or just opened, indicating that the bracts will have a longer lifespan.
- Inspect stems and leaves: Avoid plants with broken, rotten, or stained stems. Gently move the stem; it should rest firmly in the soil.
- Avoid rootless cuttings: A plant whose base is loose in the soil may not have rooted properly.
Basic care of poinsettia at home
- Abundant natural light but not direct sunlight: Darkness causes the leaves to fall, but too much sun exposure burns them. It's best to place it near a window with a translucent curtain.
- Avoid drafts: In well-ventilated rooms, try to place it in areas where air doesn't circulate directly. Excessive drafts accelerate leaf fall.
- Optimum temperature: Between 18-22°C during the day and 16°C at night. It doesn't rise well above 35°C or withstand drops below 10°C, although once acclimatized, it can survive occasional drops of up to -1°C.
- Keep the ambient humidity high: If the environment is dry (especially due to heating), spray the green leaves occasionally. Avoid wetting the red bracts to avoid damaging them or causing stains.
- Away from heat sources: Move the plant away from radiators and overheated environments to avoid heat stress.
- Do not leave standing water in the base: A few stones in the water dish can help, but always control the excess water to prevent root rot. Instead, use humidifiers or containers of water nearby.
How to water poinsettia properly?
- Let the soil dry between waterings: Use your finger or a moisture meter to check the level in the substrate before adding water.
- Irrigation frequency: In winter, once every 7-15 days may be sufficient, depending on ambient humidity and temperature. In hot or dry environments, you may need to do it more often.
- Immersion irrigation as an alternative: Soak the pot in water for about 15-20 minutes occasionally and drain off excess water.
- Use lukewarm water: Whenever possible, use water at around 30°C. Avoid cold water, which can cause roots to collapse.
- Chlorine-free water: Let tap water sit for 24 hours before watering to eliminate chlorine, which is harmful to roots.
- Never wet the bracts during watering: Do this directly on the soil to avoid stains and fungal diseases.
Common Poinsettia Problems: Causes and Solutions
- Yellow, wilted or prematurely falling leaves: It may be due to over/underwatering, drafts, lack of light, excessive heat or dry air.
- Drooping bracts/leaves: Indicates possible stress due to relocation, lack of water, or a need to renew the substrate. Repot or renew the soil if the problem persists.
- Pests: Watch for aphids, mealybugs, and mites, especially in dry, warm environments. Treatment with potassium soap is safe and effective.
- Spotted or discolored leaves: This is usually due to improper watering or inadequate sun exposure. Adjust the location and check the watering.
Fertilizing and fertilizing poinsettia
- Liquid balanced fertilizer: Choose products with nitrogen, phosphorus, and potassium specifically for indoor plants. Organic fertilizer or worm castings are a recommended natural option.
- Frequency: Apply fertilizer every 2-3 weeks during spring and summer, just when the plant is actively growing. In fall and winter, significantly reduce the frequency or stop fertilizing.
- Low dose: If you use chemical fertilizer, use half the recommended dose for sensitive plants like Poinsettia.
Transplanting Poinsettia: When and How to Do It
- Ideal time: Spring, after the leaves have fallen, is the best time to transplant and renew the substrate.
- Suitable pot: It should be a little larger than the previous one, with good drainage to avoid flooding.
- Substratum: Loose, rich in organic matter, and draining. A mixture of universal substrate and humus is excellent.
- Process: Carefully remove the plant, shake off any excess soil, and place it in the new container. Firm the potting soil very lightly, water moderately, and protect it from direct sunlight and drafts for the first few weeks.
Pruning poinsettia to stimulate growth
- Time: At the end of winter or beginning of spring, when the plant completes its dormant phase.
- Technique: Cut the stems to 10-15 cm from the base, always leaving healthy shoots. A clean cut encourages strong, compact regrowth.
- Objective: It stimulates new shoots, improves the shape and density of the bush, and promotes flowering and bract coloring at Christmas.
- Caution: Pruning exudes a milky sap that is irritating if it comes into contact with skin or mucous membranes. Wear gloves and wash your hands thoroughly afterward.
Year-Round Poinsettia Care Calendar
- December to August: Keep the plant in a bright location, water moderately, and fertilize monthly in spring and summer. Monitor for pests and remove dry or damaged leaves.
- September: Begin the process of forcing the red color. Place the plant in complete darkness for about 12 hours a day (you can use a box or place it in a ventilated closet).
- October and November: Increase the period of darkness to 14 hours a day. Strictly alternate light and shade to stimulate future coloration. Maintain stable humidity and temperature.
- December: Enjoy the colorful bracts again; renew the substrate and repot if the plant requires it.
How to get the poinsettia to show red leaves again
The red pigment appears when the plant is exposed to prolonged total darkness and the chlorophyll is reabsorbed, revealing the red anthocyanins. To achieve red leaves year after year:
- Prune the Poinsettia in spring after the leaves fall to encourage new growth.
- During September, hide it from light for 12-14 hours a day in total darkness.
- This cycle continues until the end of November, and from December onwards, the plant will once again display spectacular red bracts.
Outdoor Poinsettia Care
- Light: Ideally suited for locations with bright indirect light, although outdoors it tolerates soft direct sun in autumn and winter.
- Protection against cold: If nights drop below 5°C, protect the plant with blankets or move it indoors.
- Irrigation: Moderate. Allow the substrate to dry between waterings and avoid puddles to prevent rot. In warm climates, it requires more water and drainage control.
- Keep the substrate loose and well aerated: To ensure proper root development and prevent fungus.
- Monitor pests: Outdoors, it may be attacked by aphids, mealybugs, spider mites, and thrips. Use potassium soap and check regularly.
- Prune and maintain shape: Remove dead branches and shape them in spring and summer. Remove diseased leaves to prevent infection.
- Subscriber: In spring and summer with worm humus or organic fertilizer, once a month.
Poinsettia and Pets: Precautions
- Toxic sap: Poinsettia contains a milky sap that can be toxic to pets and people if ingested or in contact with mucous membranes. Wear gloves when handling it and keep it out of reach of children and pets.
- First aid: If a pet nibbles on the plant, rinse its mouth with water and monitor for vomiting or irritation. Consult your veterinarian if any worrisome symptoms appear.
Frequently Asked Questions About Poinsettia
- Why are the leaves falling? Lack or excess of water, changes in light or temperature, or drafts.
- Can it be recovered if it loses all the leaves? Yes, if the roots are healthy. Check here how to recover it.
- How long does a poinsettia live? With proper care it can last for years, growing larger and providing bracts year after year.
- How do I make it turn red again? Follow the cycle of darkness and light from September to December. To do this, you can also learn how to redden leaves.
- Can I plant poinsettia in the garden? Yes, in temperate, frost-free climates. It requires rich, aerated, and well-drained soil. More information at have it outside.
