How to Repot a Poinsettia
Repot a Poinsettia every 1 to 2 years into a pot that's 1 to 2 inches wider than the current pot. Use a well-draining houseplant mix with extra perlite. Wait until the colorful bracts fade in late winter or early spring, when the plant is ready to push new growth.
How to Know It's Time to Repot
Poinsettias spend most of the year as a regular green shrub, and that's when their pot needs really show. The plant gives you several clear signals when it has outgrown its container.
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1Roots circle the bottom of the pot or push out through the drainage holes.
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2The plant has roughly doubled in size since you last potted it up.
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3Soil dries out within a day or two of a thorough watering.
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4New leaves come in noticeably smaller than the older ones.
One sign on its own isn't reason enough to repot, but two or more together means it's time. Most Poinsettias kept as year-round houseplants need a fresh pot every 1 to 2 years, since they grow quickly once the bracts fade.
The Best Time of Year to Repot
Poinsettias should be repotted in late winter or early spring, once the colorful bracts have faded and the plant is preparing to push new green growth. Repotting during the holiday bloom stresses the plant and shortens the bract display.
After the bracts drop, the plant moves into active growth and recovers from root disturbance quickly. Use the map below to find your window.
How to Choose a Pot and Soil Mix
Pot Size
Move up to a pot that's 1 to 2 inches wider than the current pot. That gives the roots enough fresh soil for the next year or two of growth, with room to spread but not so much extra space that wet soil sits around them and rots.
Pot Material
Terracotta is a great match for Poinsettias because the porous walls let excess moisture evaporate and protect the roots from staying soggy.
Plastic and glazed ceramic work too, especially if your home runs dry, but you'll need to water a touch less often to compensate. Whichever material you pick, make sure the pot has drainage holes. Poinsettia roots rot fast in standing water.
Soil Mix
Mix two parts standard houseplant potting soil with one part perlite for the well-draining blend Poinsettias prefer. A handful of compost or worm castings worked into the mix feeds the plant through its strong spring growth.
Skip moisture-control formulas and dense peat-heavy mixes. Both hold too much water for these roots and lead to rot.
How to Repot a Poinsettia, Step by Step
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1Water the day before. Give the plant a thorough drink the day before repotting. Moist soil holds the root ball together when you slide it out and keeps the fine roots from tearing as you work.
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2Pick the new pot. Choose a pot that's 1 to 2 inches wider than the current pot, with drainage holes. Layer an inch of fresh mix in the bottom so the root ball will sit at the same height it did before.
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3Slide the plant out. Tip the pot onto its side and gently work the root ball loose. Poinsettia stems bleed milky sap when broken, so handle the plant by the root ball rather than the stems. Wear gloves if you have sensitive skin.
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4Loosen the roots. Gently untangle any roots that have wound themselves into a tight circle at the bottom. Trim away any sections that are black, mushy, or smell off, using a clean knife. Healthy roots are firm and pale tan.
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5Set it in the new pot. Center the plant at the same depth it was growing before. Fill in around the sides with fresh mix, pressing gently as you go to remove air pockets. Burying the stem above its original soil line can cause rot.
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6Water and place in bright indirect light. Water slowly until you see it run out the drainage holes. Set the plant somewhere bright but out of harsh direct sun for the first couple of weeks. Hold off on fertilizer for 4 to 6 weeks so the freshly cut roots can settle in.
What to Expect After Repotting
Week 1
Some leaf droop or a yellowing lower leaf is normal as the roots settle into their new home. The milky sap may continue to weep slightly from any small wounds for a day or two.
Keep the soil lightly moist but not soggy, give the plant bright indirect light, and skip fertilizer for now. Resist the urge to move the pot around the house while it's recovering.
Weeks 2 to 4
Fresh green leaves emerging at the growing tips are the clearest signal that the plant has rooted in and is ready for normal care.
Slide the pot back into its usual spot and ease into your regular watering rhythm. Start half-strength liquid fertilizer once you see clear new growth, and build up to full strength over the next two or three feedings.
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