They are sometimes sprinkled with glitter. 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. 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. It is not an easy task, as it requires excluding light from the plant for a period of time while keeping the plant healthy.
The reduction in light prevents the plant from producing chlorophyll, the pigment that makes plant parts green. This changes the bracts to red, pink or white, depending on the poinsettia variety. 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.
Neil O. All rights reserved. The University of Minnesota is an equal opportunity educator and employer. Home Yard and garden Find plants Houseplants Poinsettia. Quick facts Poinsettias bloom when the days get shorter. They can be grown outdoors during summer. Poinsettias are not poisonous, but the sap may cause dermatitis. Growing poinsettias. Open all Close all. Light and temperature.
Watering Keep soil moist. Water plant when the soil surface feels dry to a light touch, or pot feels lightweight when lifted. Never allow poinsettias to get so dry that they wilt. Remove from decorative foil or outer pot before watering. Make sure your plant is in a pot that drains freely. Set plant in a sink and water thoroughly, allowing the plant to drain completely. Never allow poinsettia pots to sit in excess water.
Constant wetness will rot plant roots. Continue watering as needed January through March. Fertilizing You do not need to fertilize your poinsettia during the holidays. 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. 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:. 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. While caring for your poinsettia to encourage it to rebloom, be on the lookout for the signs of leaf and root rot problems described here. Leaves will turn completely yellow or develop yellowness around the veins of lower leaves if the plant is stressed.
There are many reasons for yellowing leaves:. If leaves have small spots with yellow halos, the plant has scab, which requires a fungicide application. Brown spots form on the plant in various places if it has canker, which might be helped by removing affected portions of the poinsettia.
Stems will turn brown or black if the plant has root rot. Remove infected portions of the plant and try to repot the remaining healthier parts in clean soil and clean pots using sterile gardening tools. Apply a fungicide to the plant for protection. When a poinsettia defoliates, it doesn't spell good news and can lead to the death of the plant.
It means that the poinsettia has serious canker or severe root rot from being underwatered, overwatered, or overfertilized. If some leaves are falling, the plant might also need a bit more light. If you want to keep your poinsettia alive through to the next year's holiday and beyond, you will need to babysit the plant quite a bit.
It's a job for an indoor gardener who appreciates a challenge. If you are dedicated to keeping your indoor plant on a strict schedule for reblooming, it can live for up to two years, quite possibly three, or even longer. An indoor poinsettia doesn't necessarily "grow," but it can rebloom. However, when grown in the wild, poinsettias are moderately quick growers and can reach between 10 and 15 feet tall. Edu ,. What is the Problem?
Common Diseases of Poinsettia. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads.
Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors. In This Article Expand. Pests and Plant Diseases. Common Issues. The white sap can have allergic properties for people with latex allergies. Are poinsettias easy to care for?
How long can a poinsettia live?
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