Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Thursday - November 17, 2011

From: Roanoke, VA
Region: Mid-Atlantic
Topic: Invasive Plants, Non-Natives, Planting
Title: When to plant non-native red-tip photinia
Answered by: Nan Hampton

QUESTION:

When do you plant the Red-Tip Photinia Flowering Shrubs in Roanoke VA?

ANSWER:

Photinia x fraseri (Red-tip photinia) is a hybrid cross of two non-native Asian species—Photinia serratifolia from China and Photinia glabra from Japan.  It is considered invasive in Texas, but not in Virginia.  Since our expertise and focus here at the Lady Bird Johnson Wildflower Center are with plants native to North America, we aren't really the source you should be asking about planting red-tip photinia.  The Roanoke Virginia Cooperative Extension office should be able to tell you; in fact, you can ask your question on their Ask an Expert – Master Gardeners feature.

Please visit Ask Mr. Smarty Plants again with questions about North American native plants.

 

More Invasive Plants Questions

Do Salvia coccinea and Salvia occidentalis occur in Hawaii
April 27, 2008 - Aloha, Would you please happen to know if the salvia occidentalis and the salvia coccinea are growing in a wild state in Hawaii, the quantity (small or large areas? What are the weather conditions ...
view the full question and answer

Use of kudzu in landscaping
April 11, 2008 - HELLO MR.SMARTY PlANTS,my question is , I need a # of kudzu plants to grow quickly for a huge bare back wall since we are selling our house & have zero anything back there.we are getting comments that...
view the full question and answer

Invasiveness of Oenothera speciosa?
October 02, 2015 - Hello! I received a large package of Oenothera speciosa seeds and would like to plant them this month. I've read elsewhere that they can choke out out other plants and am wondering to what degree thi...
view the full question and answer

Removing non-native plants appearing in Austin in early spring
March 14, 2012 - In order to know which plants to keep and which to remove, is there a source to look up and identify common non-native plants that are seen in Austin about this time of the year (late winter, early Sp...
view the full question and answer

Native vs. Invasive Experiment
July 01, 2008 - I asked you earlier about my group's experiment on native vs. invasive plants in Valdosta. Here are what we chose to work with..native: spiderwort (Tradescantia ohiensis) and invasive: wild taro (Col...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.