En Español

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

Friday - January 23, 2009

From: Penngrove, CA
Region: California
Topic: Invasive Plants
Title: The invasiveness of Lupinus arboreus
Answered by: Nan Hampton and Joe Marcus

QUESTION:

Hi, Researching Lupinus arboreus, I found that it is considered a serious invasive in Northern California coastal areas, especially Humbolt Bay. Scotch broom, of course, is an awful pest on the coast as well as inland in California, but I would hope no one would replace it with Yellow beach lupine, which besides spreading rapidly, changes soil composition which encourages other weeds, and interbreeds with other lupines, threatening the species' purity. So I hope you will explain this on your site. Thanks. M.L. Carle Invasives chair, Sonoma County chapter of California Native Plant Society

ANSWER:

You are right.  Lupinus arboreus (yellow bush lupine) is an interesting example of a plant being both native to and invasive in a single state -  in this case, California.  We have noted the species' special, troublesome characteristics in our NPIN Plants Database record for that species.


Lupinus arboreus

 

 

 

More Invasive Plants Questions

How Can I Tell an Invasive Thistle from a Native
May 01, 2012 - Mr Smarty Plants, I have some thistles coming up in my yard. I'd like to keep them if they are native, but not if they are invasive or non-native. How can I tell? My yard is a wild area in West Lak...
view the full question and answer

Information about empress tree (Paulownia tomentosa)
March 07, 2008 - I have an Empress Tree, 3 yrs old, and the limbs grow straight out from the trunk about 2-3ft and then grow straight upward. When do they start to grow outward for a canopy??
view the full question and answer

Removing Creeping Fig Suckers
October 17, 2012 - Help Mr Smarty Plants, I am helping a neighbor remove a creeping fig from her property and want to know if there is any product that will soften, emulsify or remove the remaining sucker roots on the ...
view the full question and answer

Negative and positive effects of invasive dandelions from Rama Ontario
January 12, 2012 - How do Dandelions have a negative impact of being a invasive and a Positive impact of being a invasive species ?
view the full question and answer

Will native Galium aparine be a problem in Austin garden?
March 25, 2014 - Should I be concerned that my yard is overrun with "sticky weed" (Galium aparine) in the early spring? Specifically, about five years ago I undertook converting about half my back yard into a na...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center