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

Rooting cuttings in water from Rifle CO
July 11, 2012 - Found russian sage lavender stems from cutting. Need to find out if I can root them in water? I also have found rose cutting; wondering if I can put them in water to root? I have a western chokecher...
view the full question and answer

Problems with philodendron bipinnatifidum
July 08, 2008 - I have a philodendron bipinnatifidum (selloum) that is now over 20 years old. It has been growing like crazy for the past 2 months, but has been inundated with pests since January, when I repotted it ...
view the full question and answer

Gathering seeds of Indian Blanket from Duncanville TX
June 09, 2012 - We have a field full of Indian Blanket that are blooming now and would like to share some seeds with our friends! Where is the seed on them and I take it we wait till they are done blooming to get the...
view the full question and answer

Transplanting Cornus sericea by sprouts in Maryland
November 21, 2008 - I would like to transplant suckers of a red-twig dogwood (Cornus sericea). When is the best time to do it (before or during dormancy)? How big of a root system does each sucker need to survive? Where ...
view the full question and answer

Kinnikinnick for a green roof
July 04, 2012 - Hi Mr. Smarty Plants, I live just north of Seattle and want to build a green roof (outdoor kitchen) I'm concerned about the weight of the soil (saturated), drainage etc. am building from scratch and...
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