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 Non-Natives Questions

Non-native Indian Hawthorn not flowering in Fairfield, TX
March 17, 2012 - My indian hawthorn shrubs won't flower, they are the white variety and I live in Freestone County, Texas, greenery is beautiful and very healthy plants but no flowers Have had the plants for over tw...
view the full question and answer

Lantana in hanging basket not blooming in Dover PA
June 23, 2010 - We have a lantana Bandana trailing gold in a hanging planter in full sun. It hardly blooms. Any suggestions?
view the full question and answer

Replacing non-native boxwood in Austin
October 03, 2011 - I have a large maze garden, possibly boxwood, originally planted in the 1950's, in Austin, Texas. About 1/3 of it has died out, probably due to drought, heat and age. Should I attempt to replant ju...
view the full question and answer

Non-native Lavender Problem in Austin, TX
July 05, 2012 - I am having a problem with two of my lavender plants and was hoping I could send a photo of each to get your opinion. I've been growing rosemary and lavender successfully for quite sometime and am aw...
view the full question and answer

Non-native fruit trees for eastern North Carolina
April 03, 2008 - Are there any good fruit trees to grow in eastern North Carolina? For example peaches, apples, plums? What are your recommendations? Thank you!
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