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

Tuesday - May 20, 2014

From: Cape May Court House , NJ
Region: Mid-Atlantic
Topic: Butterfly Gardens, Pests, Poisonous Plants, Herbs/Forbs
Title: Will Canada geese eat Asclepias tuberosa from Cape May Court, NJ
Answered by: Barbara Medford

QUESTION:

Will Canada geese eat my butterfly milkweed (Asclepias tuberosa)? I know this plant is deer resistant. I really want to plant some on sandy bank near pond in my back yard, but I fear the geese will eat it since this variety does not contain the high quantity of milky sap that other milkweeds have.

ANSWER:

Not unless they are really dumb geese. From our webpage on Asclepias tuberosa (Butterflyweed):

"Warning: POISONOUS PARTS: Roots, plant sap from all parts. Not edible. Toxic only if eaten in large quantities. Symptoms include vomiting, stupor, weakness, spasms. Toxic Principle: Resinoid, cardiac glycoside. (Poisonous Plants of N.C.)"

This is a property that makes milkweeds valuable to butterflies, or more specifically, the caterpillars which are the butterfly children. The caterpillar is able to feed on the sap of the milkweed and transmit that poisonous trait to the butterflies, which then taste really bad to the birds that try to eat them.

We then went hunting for specific information on whether geese would eat milkweed. To be honest, we never found any specific information on a plant they would NOT eat, but on the other hand, we never found any information saying that they considered Asclepias tuberosa (Butterflyweed) to be a gourmet food.

From Ask.com, What Do Geese Eat?

"Geese are herbivores, which mean that they eat only plant products. They eat grass, grain, wheat, beans, corn, and rice. They also eat plants that grow around lakes and bodies of water."

From Native Plants Wildlife Gardens Help Monarchs with the Right Milkweeds. From  previous Mr. Smarty Plants question What Plants will Ducks and Geese Not Eat?

 

From the Image Gallery


Butterflyweed
Asclepias tuberosa

Butterflyweed
Asclepias tuberosa

Butterflyweed
Asclepias tuberosa

Butterflyweed
Asclepias tuberosa

More Pests Questions

Control of grasshoppers from Goldthwaite TX
July 07, 2012 - How long do grasshoppers live. They are eating our flowers, plants and trees.
view the full question and answer

Plants that donkeys won't eat
August 08, 2012 - What plants/trees do donkeys NOT like? I live in Hawaii on the Big Island and they visit once a week in my yard. I like them but would prefer that they stay just outside. Unfortunately they like my...
view the full question and answer

Using cattail fluff to stuff pillows
April 22, 2007 - Me and my children filled a pillow case with cattail feathers today and brought it home. My mother says that it is going to get or attract bugs. Are there any dangers in this little project? Than...
view the full question and answer

Viburnum insect damage
October 08, 2009 - I have a highbush cranberry that gets covered in 1/4in black bugs every spring. It makes lots of holes in the leaves. What are they and how can I get rid of this insect.I have tried neem oil but it do...
view the full question and answer

Rabbit-proof Plants for Texas
July 03, 2014 - Do you have a list of flowers that rabbits will eat or will not eat so I know what to plant or avoid? I have a year-round rabbit population in my neighborhood and wish to co-exist with them without t...
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