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

Wednesday - March 15, 2006

From: Austin, TX
Region: Midwest
Topic: Non-Natives
Title: Possibly escaped non-native Buddleja davidii in Missouri
Answered by: Nan Hampton and Joe Marcus

QUESTION:

About 3 years ago my wife and I were traveling thru southeastern Missouri and stopped at a road side rest station on Interstate 44. While we were there we noticed a shrub about 4 to 5 feet tall with pale blue flowers. This plant was covered with butterflies. We counted 12 to 15 different types. There were other flowering plants in the same bed and in other beds nearby but all of the butterflies were on this one plant. This was in late August/early September. Is there anyway to find out what this plant was? Any suggestions will be greatly appreciated.

ANSWER:

It is possible that the shrub you saw was butterfly bush (Buddleja davidii—often spelled: Buddleia). It is not native to North America, but is commonly planted in gardens and may be an escapee. It comes in a variety of colors, blooms in late summer, and is definitely a butterfly magnet. Another possibility for a cultivated plant that fits your description is French hybrid ceanothus (Ceanothus x delilianus). It is a hybrid of C. coeruleus (synonym=C. caeruleus) from Mexico and C. americanus that is native to Missouri. The hybrid is a hardy plant with pale blue flowers.

Here are some other possibilities that are Missouri natives and somewhat fit your description:

Blue sage (Salvia azurea var. grandiflora)
Narrow-leaved mountain mint (Pycnanthemum tenuifolium)
Mountain mint (Pycnanthemum pilosum)

If none of these look like the shrub you saw, you might check the plants with blue flowers on Missouriplants.com.
 

More Non-Natives Questions

Invasive thistles in wildflower field from Dripping Springs TX
February 17, 2014 - How to get rid of "native" thistles.. I have a large natural field that used to grow a variety of wildflowers, but in 2011 and 2012 it was taken over by thistles. I'm sure they are "native" Texas...
view the full question and answer

Will frozen non-native agapanthus come back from freeze in Austin?
February 06, 2011 - I don't know if its a native plant, but my agapanthus got frozen in our recent cold weather. Will they come back; should I trim off the tops?
view the full question and answer

Yellowing leaves on non-native Hibiscus rosa-sinensis
July 03, 2006 - I purchased a chinese hibiscus hiros small tree and after 1 month the leaves keep turning yellow. What's wrong? It's in a large pot and never outside below 60 degrees. Thanks.
view the full question and answer

Habiturf for Round Rock TX
March 17, 2013 - Topic Habiturf. We have just aerated our lawn. We were planning on throwing out bermudagrass seed. We already have bermudagrass as well as many weeds in the lawn especially the blue stem clump grass w...
view the full question and answer

Texas native plants in an indoor space in Dallas
July 31, 2009 - Is there a native Texas plant that would be suited for an indoor application, such as large planters in a lobby space?
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