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

Sunday - April 21, 2013

From: England, Other
Region: Other
Topic: Non-Natives, User Comments, Poisonous Plants, Herbs/Forbs
Title: Foxglove safety from England
Answered by: Barbara Medford

QUESTION:

Hi, regarding safety of foxgloves grown near edible plants - foxgloves are good companion plants for vegetables, in case of root vegetables they improve their storage life and quality. Foxgloves protect tomatoes and potatetoes from diseases. Of course I would wash anything I eat that grew next to foxgloves under running water in case some pollen reach my food.

ANSWER:

Thank you for your comments. We get a lot of questions concerning whether other plants are safe around their foxgloves. The Lady Bird Johnson Wildflower Center, home of Mr. Smarty Plants, is committed to the growth, propagation and protection of plants native not only to North America but to the area in which those plants will be grown. In view of that and the fact that you are obviously a gardener in England, we believe we are talking about two different genera of plants.

From the  Nova Scotia Museum The Poison Plant Patch discusses the true poisonous plant Digitalis purpurea. This plant is in the Scrophulariaceae family. There are 26 plants in our Native Plant Database with the common name "foxglove," frequently accompanied by the word "false." Sixteen of these are in the Agalinis genus, 7 in the Aureolaria genus and 3 in the Penstemon genus. All of these are also in the Scrophulariaceae family, but there are no members of the Digitalis (foxglove) genus in our Native Plant Database. The genus Penstemon has visual characteristics very similar to Digitalis. These native plants are Penstemon cobaea (Wild foxglove), Penstemon digitalis (Mississippi penstemon) and Penstemon fendleri (Fendler's penstemon). It would seem likely that some early botanist, possibly European, called attention to that similarity in naming Penstemon digitalis (Mississippi penstemon).

We are aware that many non-native and poisonous selections of Digitalis plants are sold in North America. They are beautiful flowers, evoking the traditional English garden, much admired in the United States. If they have only the common name on the labels and no scientific name, it would be very difficult for a lay person to avoid purchasing the plant. There is little Mr. Smarty Plants can do except remind everyone to investigate carefully every plant for sale BEFORE purchasing it.

One final note, your mentions of using Digitalis in growing vegetables is still out of our range of expertise. Most edible plants considered vegetables are either non-native to North America or so extensively hybridized that recognizing the origin and nativity of the plant is difficult to impossible.

 

From the Image Gallery


Prairie penstemon
Penstemon cobaea

Mississippi penstemon
Penstemon digitalis

Fendler's penstemon
Penstemon fendleri

More User Comments Questions

USDA hardiness Zones
May 10, 2009 - I love your site..I don't live in Texas and would like it very much if you would include the zone with plant listings. Thank you for all your hard work!
view the full question and answer

Why is Mr. Smarty Plants website so useless?
July 16, 2008 - Why is your site so useless?
view the full question and answer

Comment on previous answer from Austin
October 15, 2013 - Ms Bradford, You just answered my question about St. Augustine grass.. actually, you didn't answer it.. You said "sorry, wrong number". Very funny. I think you misunderstood... I would rather no...
view the full question and answer

Mexican species Orbexilum melanocarpum.
January 04, 2013 - This is not a question; just a note to supplement a previous MSP post answering a query about a source for Orbexilum. The "mountain pea" that the original questioner was asking about is the e...
view the full question and answer

Response to previous answer from Ft. Worth TX
November 07, 2013 - What email can I respond to Barbara Medford QUESTION:
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