En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Friday - September 06, 2013

From: Houston, TX
Region: Select Region
Topic: Non-Natives, Propagation, Shrubs
Title: Propagation of poinsettias in water from Houston
Answered by: Barbara Medford

QUESTION:

Pointsettias - we have a broken branch that is thriving in a jar of water with new leaves and additional small branches. When we plant the stem in dirt and even a muck, the growth starts to wither. Any way that we can generate a thriving plant from this growth?

ANSWER:

There is one poinsettia, Euphorbia cyathophora (Wild poinsettia), native to North America and this USDA Plant Profile Map shows it grows naturally in Harris County. You can see the pictures below from our Image Gallery to judge whether this is the plant you have. On the other hand, if you purchased the parent plant, it is more likely that you have Euphorbia pulcherimma, which is indigenous to Mexico and Central America and therefore falls out of the realm of our expertise, which is plants native not only to North America but to the area in which they are being grown; in your case, Harris County TX. This USDA Plant Profile Map shows that this plant grows natively nowhere in North America.  Both the native and the non-native belong to the Euphorbiaceae family and propagation methods should be similar.

This article from Floridata on the culture of the non-native poinsettia has this paragraph on propagation:

"Propagation: Take cuttings in summer. Use rooting hormone on 8 inch tip cuttings. An easier way is to take cuttings of woody stem about 18 in (45.7 cm) long, stick in ground and keep moist (not wet) for several weeks."

From Dave's Garden, here is an article on the native Euphorbia cyathophora (Wild poinsettia) giving these propagation instructions:

"Propagation Methods:
From herbaceous stem cuttings
From seed; sow indoors before last frost"

It would, then, appear that neither the native nor the non-native plant with the common name "poinsettia" can be propagated by placing cuttings in water.



 

From the Image Gallery


Wild poinsettia
Euphorbia cyathophora

Wild poinsettia
Euphorbia cyathophora

Wild poinsettia
Euphorbia cyathophora

More Shrubs Questions

Oak leaf hydrangeas from Edwardsville IL
August 13, 2012 - Hello, I live in West Central Illinois (across the river from St. Louis) and I am considering planting several Oak leaf Hydrangea's in my yard. The location where I would like to plant them is und...
view the full question and answer

Book on blueberry bushes in Tennessee
February 18, 2009 - I'm looking for a book titled "Planting blueberry bushes in Tennessee" by an author I can't remember the name of. Have you heard of this book an do you know where one could find a copy? The autho...
view the full question and answer

Pruning of tree poppy from Livermore CA
May 29, 2013 - We have a Dendromecon rigida which has been in place for about 10 years and is doing fine. But the older growth gets dry, brown and crinkly, while the newer growth is bright and lush. I would like t...
view the full question and answer

Cenizo for border of school garden from Cedar Park TX
January 27, 2014 - Hi. We're starting a school garden in Central Texas, and instead of building a fence along one side, we'd like to plant a hedge. Ideally, it would grow tall enough to deter deer from jumping over, b...
view the full question and answer

Blocking out noise from pond pump in Holly MI
April 02, 2010 - My neighbor has a motor for his pond pump that faces my backyard--it is extremely loud and irritating after listening to it for 5 hours or more. Is there any type of shrub that I can plant to block o...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center