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
1 rating

Tuesday - April 29, 2014

From: Mission, TX
Region: Southwest
Topic: Non-Natives, Butterfly Gardens, Herbs/Forbs
Title: Growth rate of non-native Asclepias curassavica
Answered by: Barbara Medford

QUESTION:

As a volunteer at the National Butterfly center, I wonder how long from starting the seeds until the plant reaches approximately 20 cm tall does it take a tropical milkweed (asclepias curassavica) to grow assuming 60 degree nights or above? Thank you

ANSWER:

There are a couple of things we need to let you know. The first is that this member of the Mr. Smarty Plants Team does not speak metric, and must blushingly concede that she has not the slightest idea how tall is 20 cm?

The second thing is that the Lady Bird Johnson Wildflower Center, home of Mr. Smarty Plants, is dedicated to the growth, propagation and protection of plants native not only to North America but to the area in which they are to be grown; in your case, Hidalgo County, in the very southern tip of Texas. Ascepias curassavica,Tropical Milkweed, is therefore not in our Native Plant Database but is native to South America, and there is some controversy about using it in feeder areas for the Monarch Butterfly, according to this article from the Texas Butterfly Ranch.

 

More Butterfly Gardens Questions

Native host plants for Painted Lady Butterfly
June 01, 2006 - I am looking for host plants for the Painted Lady Butterfly that I can plant in my school's (I am a teacher) native plant/butterfly garden. As part of the curriculum, each spring the 1st grade raises...
view the full question and answer

Information on Betonyleaf thoroughwort
September 04, 2008 - I purchased Conoclinium betonicifolium (Betonyleaf thoroughwort) at the spring 2008 LBJ WC plant sale. I've not been able to find much information on the plant in the typical places, including the...
view the full question and answer

Groundcover and Butterfly attractants for LaRue Texas
May 02, 2012 - LaRue, TX - Would like a native low growing plant as a groundcover. I would like it for six+ hours of sun, drought tolerant, and ones that butterflies might enjoy, while deer won't. Some winter int...
view the full question and answer

Optimum pruning time for butterfly garden
April 18, 2005 - I am planting a butterfly garden that I would like to be pretty as well as beneficial for butterflies. If I am going to have both host plants and nectar plants in the garden and the butterflies will b...
view the full question and answer

Texas native variety of butterfly weed
November 19, 2008 - Which variety of Butterfly Weed is the native Texas variety? I want to know which one supplies the proper defense against birds to the Monarch butterfly through it's nectar? I have heard that the n...
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
© 2014 Lady Bird Johnson Wildflower Center