Penstemons 2011

15 posts / 0 new
Last post
Lori S.
Title: Moderator
Joined: 2009-10-27
Penstemons 2011

Penstemon season is starting up here...
I think this is Penstemon davidsonii. Can anyone confirm that? (If not... arrghh, more keying out to do!)

The beautiful blue of Penstemon cyananthus:

Boland
Boland's picture
Title: Member
Joined: 2009-09-25

I have P. davidsonii...the flowers and foliage are quite different...glossier and more narrow foliage.  the foliage on yours looks like P. fruticosus.

Todd Boland
St. John's, Newfoundland, Canada
Zone 5b
1800 mm precipitation per year

Lori S.
Title: Moderator
Joined: 2009-10-27

Thanks, Todd.  I'll pull out the key and check it out further... I'd better get a move on before the bloom ends.

Penstemon procerus, a local wild form with much narrower leaves than some of the commercially-distributed forms:
   
http://plants.usda.gov/java/profile?symbol=PEPR2&photoID=pepr2_002_avp.j... (Wow, correct me if I'm wrong, but I think the first photo at USDA Plants is grossly misidentified!)
http://calphotos.berkeley.edu/cgi/img_query?where-genre=Plant&where-taxo...

Penstemon secundiflorus:
 
http://plants.usda.gov/java/profile?symbol=PESE11
http://calphotos.berkeley.edu/cgi/img_query?stat=BROWSE&query_src=photos...

Lori
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm

Hoy
Hoy's picture
Title: Member
Joined: 2009-12-15

Nice Penstemons! I have planted some seedlings of Penstemon, from seed this spring, but they all look the same except one despite I got several kind of seed in the seedex!

Trond
Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!

RickR
Title: Moderator
Joined: 2009-09-21

Misidentified Penstemon seed in the various seed exchanges is a problem.  Fortunately, there are always good people on these forums to help ID them, or at least know it is not what it is labeled.  I picked up this seedling grown by a Chapter member as Penstemon procerus.  I snatched it up, but I don't think it looks like procerus...

Rick Rodich    zone 4a.    Annual precipitation ~24 inches
near Minneapolis, Minnesota, USA

Lori S.
Title: Moderator
Joined: 2009-10-27

Gee, I don't think so either!

Here's Penstemon confertus, another native plant:
 

Lori
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm

Hoy
Hoy's picture
Title: Member
Joined: 2009-12-15

RickR wrote:

Misidentified Penstemon seed in the various seed exchanges is a problem.  Fortunately, there are always good people on these forums to help ID them, or at least know it is not what it is labeled. 

Quite. Honestly I am not very beset of names but hope they are nice-looking and blue ;D

Trond
Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!

Lori S.
Title: Moderator
Joined: 2009-10-27

Penstemon speciosus var. kennedyi:
 

Penstemon whippleanus:

Penstemon utahensis alamosensis:
 

Lori
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm

Lori S.
Title: Moderator
Joined: 2009-10-27

Penstemon lyallii (from mid-July):
 

A hybrid(?) that puts on a great display and show of varying colour throughout the yard:
      

Penstemon barbatus 'Coccineus'...  these used to grow these a lot better than this.  Oh well.
 

Lori
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm

Anne Spiegel
Title: Member
Joined: 2010-01-26

That Penstemon speciosus v kennedyi is a really lovely plant, Lori.  Do you recall where you got the seed?  Yours looks like the true plant.

Lori S.
Title: Moderator
Joined: 2009-10-27

I bought it years ago, probably from Beaver Creek (or whoever it was that supplied a local greenhouse with alpines).

Lori
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm

Pages

Log in or register to post comments