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

Wednesday - March 12, 2008

From: Queen Creek, AZ
Region: Southwest
Topic: Propagation
Title: Germination period for Snow Mountain beardtongue (Penstemon purpusii)
Answered by: Nan Hampton

QUESTION:

Why is the germination period for the Snowmountain Beardtongue so long?. I understand it to be approximately 690 days.

ANSWER:

I did find a record on The Seed Site from UK that reported "679" under the column heading "Winter-Out" for Penstemon purpusii (Snow Mountain beardtongue). According to their Germination Page: "Out = seeds sown in pots of compost and kept in uncovered trays outside in the open or on a shelf unit with covered sides."

Tom Clothier's Garden Walk and Talk web page has a Penstemon Germination Database that gives the germination time for P. purpusii as 8 weeks at 40° F. Perhaps the The Seed Site number was an entry error (maybe it was meant to be 67 or 79) or perhaps the outdoor temperature in the UK was not sufficiently consistent during the winter to germinate the seeds in the same amount of time as reported in the Penstemon Germination Database.

 

More Propagation Questions

How to propagate Scarlet leatherflower (Clematis texensis)
May 25, 2015 - How do you collect seeds for the scarlet leatherflower? I saw your answer on how to grow from seeds but I'm not sure how to collect the seeds. Also is it possible to grow the scarlet leatherflower...
view the full question and answer

Nutlet on rudbekia plants from Quincy IL
September 21, 2009 - On rudbeckia plants, what is a nutlet?
view the full question and answer

Iris brevicaulis in Southwest Michigan
April 22, 2007 - We live in Kalamazoo, MI (Southwest Michigan Zone 6) and discovered last year that we have an iris brevicaulis (we think) growing (and very pretty) on our property. It has the "zig zag" stem. It see...
view the full question and answer

Few seeds from turkscap in Seguin, TX
November 14, 2009 - I have several Turk's cap plants but most do not produce seed. Any ideas? They have been in place 5 plus years.
view the full question and answer

Propagation of mustang grape
March 10, 2005 - I'm looking to plant several vines of mustang grapes near my parents retirement home in Beeville, TX (78102). I really have two questions - what's the best way to find them at a nursery or relocate...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center