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

Saturday - January 29, 2005

From: Spring Branch, TX
Region: Southwest
Topic: Wildflowers
Title: Smarty Plants on Virginia crownbeard
Answered by: Nan Hampton

QUESTION:

I recently moved to the Hill Country and notice some "weeds" that seemed to into explode into ice formations when the temperature first fell below freezing. Can you tell me the name of this plant and a little bit about it?

ANSWER:

The common name is frost weed, ice weed, or Virginia crownbeard (Verbesina virginica). It is a member of the Family Asteraceae, the aster family. When the temperature goes below freezing its sap freezes and bursts through the stem to form beautiful ice sculptures. The first freeze of the winter gives the most spectacular sculptures. In the spring it has white blossoms. You can read about it in the Native Plants Database. Be sure to click on "Search Images" from the menu at the top on the frost weed page so that you can see pictures of the plant in the spring.

 

From the Image Gallery


Frostweed
Verbesina virginica

More Wildflowers Questions

More on bluebonnets
July 01, 2005 - I've seen several recommendtions for using a Bluebonnet Inoculant when planting Bluebonnets. "For best success, we strongly suggest using Bluebonnet inoculant (to assist in fixing nitrogen into soi...
view the full question and answer

Pink wildflowers on DFW runways in April-June
October 10, 2013 - I fly thru DFW quite often and have noticed in April-June timeframe the runways are dotted with a light pink colored wildflower. Have asked the DFW Customer Service folks for the name, ones I've ask...
view the full question and answer

Trimming back wildflower beds in Cody Wyoming
February 20, 2011 - I live in Cody Wyoming and I have some wildflower beds in front of my house that didn't get trimmed back this summer...they look like swamp plants now, super nasty. Should I trim them now?
view the full question and answer

More on bluebonnets
March 02, 2005 - There are several different species of bluebonnets that grow in Texas. Which one is the official state flower?
view the full question and answer

Bluebonnets in Hampton VA?
July 12, 2014 - I gave my mom Blue Bonnet seeds for her yard in Hampton VA. She is on a mission to have no lawn and loves flowers. The seeds say to plant in Texas August-November. But, when should she plant them i...
view the full question and answer

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