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
Not Yet Rated

Monday - July 23, 2007

From: Austin, TX
Region: Southwest
Topic: Propagation
Title: Cold moist stratification of Echinacea purpurea
Answered by: Barbara Medford

QUESTION:

I was looking at your info on Purple Coneflowers and it says: "Seed Treatment: Cold-moist stratification for two months improves germination." What is Cold-moist stratification? Thanks.

ANSWER:

Echinacea purpurea (Purple Coneflower) is a wonderful, easily grown native plant, occurring in many parts of the United States. Besides being a beautiful, tall flower, it attracts butterflies, and if the blooms are not dead-headed too quickly, the seeds in the large cone-shaped center will invite birds to dine.

To raise the percentage of success when you are trying to propagate the coneflower, cold moist stratification is sometimes advised. Let me refer you to a previous article by Mr. Smarty Plants on the process of cold moist stratification. Cold stratification involves mixing seeds with an equal amount of a moist medium (like sand) in a closed container and storing in a refrigerator at about 40 deg. Check from time to time to make sure the medium is moist but not wet. However, you should note that this type of dormancy may be satisfied naturally if seeds are sown outdoors in the fall. In other words, let Nature take its course.

 

From the Image Gallery


Eastern purple coneflower
Echinacea purpurea

More Propagation Questions

Identifying gender of persimmon trees
October 23, 2006 - How can you tell the difference between a male persimmon tree and a female persimmon tree? Also do you need both to bear the fruit? I live in Louisiana and never heard of this before. Thanks.
view the full question and answer

Planting Artemisia Cuttings in Texas
September 29, 2014 - I've rooted a number of artemisia plants in water and have transplanted them to pots. They grow so very well in our dry drought-stricken soil and need very little water. I'd like to transition these...
view the full question and answer

Propagating mimosa from seed
October 09, 2008 - I have a seed pod from a Mimosa tree. What is the best way to start this beautiful tree from seed. Thank you!
view the full question and answer

Propagation of Red Yucca from Golden, CO
March 17, 2011 - I have collected the mature seeds of Hesperaloe parviflora (the red yucca). Can you tell me what steps I need to follow for successful germination? Many thanks!
view the full question and answer

Can wildflower seeds be stored in plastic from Bayside TX
June 10, 2011 - I have been harvesting seeds from all of the varieties of wildflowers I'd planted in a raised flower bed. I had vacuum sealed them with my Seal-A Meal but a few days ago I was told that this was not ...
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