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

Tuesday - March 22, 2005

From: Lawrence, KS
Region: Midwest
Topic: Wildflowers
Title: Smarty Plants on Helianthus annuus
Answered by: Nan Hampton

QUESTION:

I am doing an Earth Fair project on the Helianthus annuus. I would like to know if you possibly had any information on this subject. Some of the things I would like to know are: How big does it get? How long does it live? What eats it? Where does it live (habitat and climate requirements)? What laws protect it? Does it have economic value? How does it protect itself? Is it poisonous to humans? other animals? How does it reproduce? What species of plants and animals would you expect to find in the same area as where it lives? why? Is it common in Kansas? What parts is it most common to? What time of year are you most likely to see them? Where other than Kansas can they be found? Is it maintaining a stable population in Kansas? Other places in it's range?

ANSWER:

You can find the answer to most of your questions by reading the entry in the Native Plants Database on the Wildflower Center web page about Helianthus annuus, common sunflower. Be sure to check the information under the Menu categories (Benefits, Bloom, Characters, etc.) at the top of the page. Another source to check is the Kansas State University web page of Kansas Wildflowers and Grasses.

For questions concerning the populations of common sunflowers in Kansas, you might contact the:

Kansas Wilflower Society
R. L. McGregor Herbarium
University of Kansas
2045 Constant Avenue
Lawrence, KS 66047-3729

 

From the Image Gallery


Common sunflower
Helianthus annuus

More Wildflowers Questions

Invasiveness of native Viola sororia
June 13, 2007 - I live in Warwick, RI and have a section of my backyard overgrown with common blue violets. My husband and I would like to relocate them to a more scenic location if possible. The advice the cooperat...
view the full question and answer

Wildflower seed for west central Texas acreage
June 06, 2005 - We have a ranch in central Texas between Brownwood and Brady and want to plant wildflowers that will grow in that area. We'd like to cover acreage and need information on what mix would suit our are...
view the full question and answer

More on bluebonnets
April 05, 2007 - I live in Hereford, Texas, near Amarillo. What would be the closest area for us to see fields of bluebonnets and when? Is it Wichita Falls?
view the full question and answer

Preparation of seeds of Cosmos parviflorus for planting
July 21, 2014 - This is in regards to Cosmos Parviflorus. I reside directly outside of Big Bend National Park in Terlingua, TX. Cosmos Parviflorus grows naturally here and I have collected some seeds from a couple of...
view the full question and answer

Landscaping recommendations for site in Dubuque, IA
March 27, 2010 - I need a seed recommendation. Here are the variables: Location: Dubuque, IA (east Central Iowa) Soil type: Sandy to sandy and gravelly. Part is a riverbank facing east. Steep bank then flat to ...
view the full question and answer

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