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
1 rating

Saturday - March 04, 2006

From: TWO RIVERS, WI
Region: Midwest
Topic: Non-Natives
Title: Locating toxic, non-native, invasive Castor Bean seeds
Answered by: Nan Hampton

QUESTION:

Where do I find castor bean seeds? Thank you.

ANSWER:

Castor bean (Ricinus communis) is a plant native to Africa that was introduced to North America, but now occurs widely over the eastern and southern U. S. A Google search using "castor bean seed" resulted in many sources that have seeds available.

This plant is on the invasive plant lists in Florida and California. Additionally, please be aware that castor bean seeds are highly toxic. Therefore, if you do purchase seeds, please plant them responsibly and grow the plant in a container away from contact with small children and pets.
 

More Non-Natives Questions

Root growth on non-native Pittisporum Tobira from San Francisco
October 29, 2011 - How do the roots grow and spread for the Pittosporum Tobira shrub? I have one that is about 20 feet tall and wonder how to care for it? Do you have a picture of how the roots grow?
view the full question and answer

Suckers on non-native crape myrtle in Bay Point CA
July 22, 2010 - How can I stop suckers on a Crepe Myrtle tree? I have bought sucker stopper in the past, but find it hard to locate now. Is there something else I can spray or paint on the base of the tree to stop ...
view the full question and answer

Root ball disintegrating on Arroyo sweetwood from Dripping Springs TX
May 11, 2013 - I just purchased a arroyo sweetwood in a 5 gallon container and when I went to put it in the ground the root ball completely fell apart. I put it in the ground and watered it really good. What are its...
view the full question and answer

Common name of non-native Senna corymbosa (Argentine senna)
July 16, 2011 - I just had a plant identified as Senna corymbosa. Can you tell me whether it's a Texas native and what its common name is? Thanks.
view the full question and answer

Micro clover for groundcover
March 10, 2012 - Hi there! I am interested in overseeding my lawn with a micro clover mix.. however, I cannot find any information on the web about how it might act here in Central Texas. Do you have any experience wi...
view the full question and answer

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