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 - July 12, 2013

From: Chambersburg, PA
Region: Mid-Atlantic
Topic: Invasive Plants, Non-Natives, Trees
Title: Non-native Royal Empress tree with only green leaves from Chambersburg PA
Answered by: Barbara Medford

QUESTION:

I have 3 Royal Empress trees in my yard that are between 2-4 yrs old and have never been any color other then big Green leaves. Do you know when they will turn Purple?

ANSWER:

Please read this article from Ecosystem Gardening Native Alternatives to Invasive Paulownia Trees.

Paulownia tomentosa (Royal Empress) is a deciduous tree in the family Paulowniaceae, native to central and western China, but invasive in the USA. The Lady Bird Johnson Wildflower Center, home of Mr. Smarty Plants, is dedicated to the growth, propagation and protection of plants native not only to North America but to the area where those plants grow naturally; in your case, the borough of Chambersburg in South Central Pennsylvania. This places that tree out of our realm of expertise but we wanted to address your question in hopes it would discourage others from planting this non-native invasive tree.

From the Missouri Botanical Garden here is an article on Paulownia tomentosa, which said "No fall color." We found purple leaves mentioned nowhere else, although the flowers are purple.

 

More Non-Natives Questions

Can non-native guavas be successfully moved from Gulfport MS?
April 19, 2011 - Can guavas be moved successfully from one established planted location to another? My mother is having to relocate due to MDOT and we would like to move her established guavas. Thank you,
view the full question and answer

Problems with non-native St. Augustine grass in Spring TX
July 09, 2009 - St. Augustine. It's July 6th, 3 weeks ago my grass was green and healthy, today I've got large patches (20' x 3') that are dying. I water my yard 10 mins / day in the morning (5:00 am). It's been...
view the full question and answer

Fragrant native plants for San Antonio, TX
August 19, 2009 - I live in San Antonio, Texas, and I am re-landscaping my backyard after my dog ate some of the beautiful blooming oleander and had to spend some time at the vet's. My backyard is my sanctuary, and it...
view the full question and answer

Houseplant identification
October 15, 2014 - Had a houseplant with leaves that were green on the top and purplish on the bottom. The leaves were velvety to the touch. Would like to know what it was.
view the full question and answer

Non-native zoysia and bermuda grasses in Austin
July 11, 2013 - We have Bermuda grass in the front and Zoysia in the back yards. The back grass is fine but the front yard Bermuda isn't. We have watered once each week during the spring and during the past 3 weeks...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center