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

Sunday - May 17, 2015

From: Newtown Square, PA
Region: Northeast
Topic: Diseases and Disorders, Trees
Title: Ostrya virginiana Compatible with Juglone
Answered by: Anne Van Nest

QUESTION:

Is Ostrya virginiana sensitive to juglone?

ANSWER:

Juglone is the chemical produced by some members of the Juglandaceae family (particularly Juglans nigra, the black walnut) which is toxic to some plants. The Ontario Ministry of Agriculture, Food and Rural Affairs has a good webpage on Walnut Toxicity that has an extensive list of plants.

Ostrya virginiana, hop hornbeam is not on any of the Juglone tolerant or Juglone susceptible lists that can be found on the Internet, but there is a personal reference to seeing it thriving on a Native Habitat/Forest Management forum about black walnuts that does confirm that it is not susceptible.

 

From the Image Gallery


Eastern hop-hornbeam
Ostrya virginiana

Eastern hop-hornbeam
Ostrya virginiana

Eastern hop-hornbeam
Ostrya virginiana

Black walnut
Juglans nigra

Black walnut
Juglans nigra

Black walnut
Juglans nigra

Black walnut
Juglans nigra

More Trees Questions

Tulip tree with white spots on leaves in Mississippi
July 31, 2008 - I have a tulip tree in my yard that blooms in the spring that is about 10-15 years old. However just this past week or so we have noticed that there is lots of white spots on the leaves and the branc...
view the full question and answer

Late leafing and early leaf-drop of Ohio buckeye tree
October 28, 2005 - We recently bought a house which has an ohio buckeye tree in the back yard. It stands about 40 feet from a large creek in Troy, Ohio. The tree is about 30 feet tall. A strip of the bark is missing....
view the full question and answer

Should wax myrtle (Morella cerifera) wood be burned in a fireplace
January 29, 2010 - Mr. Smarty Pants, Could you please tell me if Wax Myrtle is a hardwood or softwood? Our neighbor had to cut down his as they had grown into trees from the previous owners. We would like to burn t...
view the full question and answer

Chlorosis in sycamore in Kyle TX
August 04, 2011 - I'm trying to assist an elderly neighbor of mine with a plant issue. We have designated street trees in this community, our street being a Sycamore. The previous foreman out here called it a Mexica...
view the full question and answer

Fast-growing evergreen tree to hide power lines
April 10, 2009 - Live in Orange Connecticut and need a tree that grows fast and tall to cover the power lines which are quite tall. I'm thinking evergreen type trees so that the during the winter it provides the cov...
view the full question and answer

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