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
1 rating

Monday - July 21, 2014

From: Terlingua, TX
Region: Southwest
Topic: Seeds and Seeding, Wildflowers
Title: Preparation of seeds of Cosmos parviflorus for planting
Answered by: Nan Hampton

QUESTION:

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 them. Do you have any information on whether the seeds require a period of stratification or scarification? Thank you

ANSWER:

Cosmos parviflorus (Southwestern cosmos) is a beautiful plant.  I found two commercial seed companies that carry the seeds, B & T World Seeds and Western Native Seed and a gardening blog, Auntie Dogma's Garden Spot, with information about germinating Cosmos seeds.  None of the three sites suggest any pre-treatment for the seeds.

 

 

From the Image Gallery


Southwestern cosmos
Cosmos parviflorus

More Seeds and Seeding Questions

Growth of yucca from seed pods from Saginaw MI
October 05, 2013 - How do you grow a yucca plant from the pods? Do I need to dry out the pods first?
view the full question and answer

Inquiry about the Arizona Cypress trees in the Family Garden
March 20, 2015 - Dear Mr. Smarty Plants, I recently visited The Wildflower Center and enjoyed seeing several features that were new since my last visit two years ago. In the Family Garden areas I saw several beautifu...
view the full question and answer

Research on Atriplex confertifolia in Austin
January 21, 2010 - I have heard a lot about Atriplex confertifolia (Shadscale). Has the Center done any research/trial growing of this plant for possible adaptability to Hill Country (west Austin) area? If this is a ca...
view the full question and answer

Planting a meadow garden in Pennsylvania
November 16, 2014 - I live in Saxonburg PA near Pittsburgh PA. I want to put a meadow garden in my back yard. We are building a home so there is no established yard yet just trees and weeds. Where do I start . What...
view the full question and answer

Germination of Purple Clematis from Junction TX
October 31, 2013 - I have some Purple Leather Vine seeds I want to share and want help learning to germinate. Can anyone there help me find interested recipients?
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