Poinsettias have a reputation for dying fast. They don't, really — they die fast in offices, which is a different problem. Drier air, colder nights, two weeks empty over the holidays, and nobody thinking about the plant on the kitchen counter.
Almost every one we see fail does so for one of four reasons. All four take about a minute to prevent.
1. The Foil Sleeve
Nearly every poinsettia is sold wrapped in decorative foil. The foil has no drainage. Water runs through the soil, pools in the bottom, and the roots sit in it.
Root rot follows within two weeks — and it looks exactly like thirst. Droopy, yellowing lower leaves. So people water more, and finish the job.
Fix it on day one. Take the foil off, or punch holes in the bottom. Then pour off whatever collects underneath.
2. Cold on the Way In
Poinsettias are tropical. A few minutes in a Toronto parking lot in December is enough to cause chill damage — and it shows up days later as sudden leaf drop, long after anyone connects it to the trip from the store.
Below roughly 10 °C they start to suffer. Sleeve them properly and don't leave them in a cold car.
3. Watering by Calendar
Someone decides on Mondays. The plant either drowns or dries out, depending on how warm the office runs.
Check the soil instead. Push a finger 2–3 cm in. Dry at that depth means water. Damp means wait.
When you water, water properly — until it runs out the bottom — then drain it completely. Deep and occasional beats shallow and frequent.
4. Where It Gets Put
Beside the sliding doors. On a windowsill against cold glass. Under an HVAC vent. Next to a radiator.
All four are temperature-swing spots, and poinsettias answer both drafts and cold by dropping leaves. Move it two metres and the problem often just stops.
What it wants instead: bright indirect light, 18–22 °C, and no draft. No fertilizer while it's in colour — it's finished growing for the season.
The Holiday Shutdown
This is the office-specific one, and it's why a plant that looked perfect on December 20 looks terrible on January 5. Over the break nobody waters, the HVAC gets turned down, and the lights stay off. Two weeks of cold, dark and dry is more than it will absorb.
Three things, on the last day before everyone leaves:
- Water it thoroughly and let it drain.
- Move it off the windowsill. Unheated glass overnight for two weeks is the worst spot in the building.
- Use a self-watering planter. This is the real fix — a reservoir carries the plant through the shutdown with nobody doing anything. It's why every poinsettia we supply comes in one.
Quick Diagnosis
- Green leaves dropping suddenly → cold shock or a draft. Check where it's sitting.
- Lower leaves yellowing → overwatering, or the foil sleeve. Feel the soil first.
- Wilting, soil dry → thirsty. Water thoroughly; it usually recovers.
- Wilting, soil wet → root rot. Hard to come back from.
- Bracts fading pale → not enough light. Move it somewhere brighter.
And no, they're not poisonous. That's a hundred-year-old myth. The milky sap is a mild irritant — keep it away from a dog that chews plants, wash your hands, and stop worrying.
Or Let Us Handle It
Benji's supplies live poinsettias with our Toronto office holiday decor packages — $79 each, red or white, every one in a white self-watering planter.
If we already look after your office plants, the poinsettias are covered on our regular visits at no extra cost. And in January we take everything away — plants, planters and decor.
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