1. K-State home
  2. »Research and Extension
  3. »News
  4. »News Stories
  5. »Picky poinsettias? Not really, an expert says

K-State Research and Extension News

Poinsettia care

With a little care, poinsettias will provide color and beauty through the holiday season.Download this photo.

Picky Poinsettias? Not really, an expert says

Festive plants do like it cool

November 21, 2018

MANHATTAN, Kan. – Nothing says winter holidays like a colorful poinsettia. A Kansas State University specialist says it’s not hard to keep them looking healthy and bright through the season.

“Modern poinsettia varieties stay attractive for a long time if given proper care,” said Ward Upham, Master Gardener coordinator with K-State Research and Extension. He says:

  • Place your poinsettia in a sunny window or the brightest area of the room, but don't let it touch cold window panes. The day temperature should be 65 to 75 degrees Fahrenheit, and 60 to 65 degrees at night. Temperatures above 75 will shorten bloom life, and below 60 may cause root rot.

  • Move plants away from drafty windows at night or draw drapes between them to avoid damage from the cold.

  • Poinsettias are somewhat finicky in regard to soil moisture. Avoid overwatering because poinsettias do not like "wet feet." On the other hand, if the plant is allowed to wilt, it will drop some leaves.

  • Maintain proper moisture by checking the potting soil daily. Stick your finger about one-half inch deep into the soil. If it is dry to this depth, the plant needs water. When it becomes dry to the touch, water the plant with lukewarm water until some water runs out of the drainage hole, then discard the drainage water.



Are poinsettias poisonous?

Despite rumors to the contrary, poinsettias are not poisonous, said Ward Upham, horticulture specialist with K-State Research and Extension.

Though there may be an allergic reaction to the milky sap, Upham said, there has never been a recorded case of poisoning. This rumor has been so persistent that members of the Society of American Florists have sought to dispel it by eating poinsettia leaves for the press.

In the 1985 American Medical Association Handbook of Poisonous and Injurious Plants, the poinsettia "has been found to produce either no effect (orally or topically) or occasional cases of vomiting. This plant does not contain the irritant diterpenes," which is the toxin in other members of the genus Euphorbia to which poinsettia belongs.

At a glance

Festive poinsettias have a reputation for being high maintenance, but with a bit of care, can stay beautiful all through the season.

Notable quote

“Modern poinsettia varieties stay attractive for a long time if given proper care.”

-- Ward Upham, Kansas State University horticulturist and state Master Gardener coordinator


Ward Upham

Written by

Mary Lou Peter
913-856-2335, Ext. 130


KSRE logo
K‑State Research and Extension is a short name for the Kansas State University Agricultural Experiment Station and Cooperative Extension Service, a program designed to generate and distribute useful knowledge for the wellbeing of Kansans.
Supported by county, state, federal and private funds, the program has county extension offices, experiment fields, area extension offices and regional research centers statewide. Its headquarters is on the K‑State campus in Manhattan.