|Attractive burgundy seedheads are in late July |
Nice larger penstemon, striking when in bloom. Mid-green lance-shaped leaves. Not very long-lived - I replace by growing from seed regularly. Drought resistant.
||Rocky Mountain penstemon
||purple or blue (summer)
||see seed details
detailed seed-starting info below
|Seed ripens||early August|
In our garden, this plant grows in the following area: rock garden
Read about all the penstemon species in our garden
About my plant portraits
PlantLinks to other web pages about Penstemon strictus
Some particularly helpful links to other websites
Visitors to this page have left the following comments
|constance castro||Jan 03, 2014||hello...I have never started penstemon "Rocky Mountain" by seed before. Is it difficult? I am an amateur. Constance|
Penstemons can be difficult to start, but P. strictus isn't so bad. I found it is best to sow the seeds to just below the surface of a pot with gritty soil. Sow many more seeds than the number of plants you want – in my experience, germination rates are low.
- Seed from '00 trade. Cellpack, 70F (35%G, 6-16d). Most seedlings succumbed to damp-off.
- Same seed as above. Baggy, 70F (20%G, 11-21d)
- Seed from '02 garden. Baggy, 70F with light (36%G, 8-20d). Several never developed after transplanting to cellpack
- Seed from '02 garden. Pot, 70F with light (16%G, 10-18d). All grew into healthy plants
- Seed from '09 garden. Surface-sown to pot under light (14%G, 10-15d)
- Same seed as above. Surface-sown to pot under light (3%G, 14d)
Germination percentage is always rather low; susceptible to problems after transplanting or wet conditions after germination. Sowing thickly to pot and leaving undisturbed until sturdy plantlets have developed seems like the best approach.
I welcome comments about my web pages; feel free to use the form below to
leave feedback about this particular page. For the benefit of other visitors
to these pages, I will list any relevant comments you leave, and if
appropriate, I will update my page to correct mis-information. Faced with an
ever-increasing onslaught of spam, I'm forced to discard any comments including
html markups. Please submit your comment as plain text. If you have a
comment about the website as a whole, please leave it in my
guestbook. If you
have a question that needs a personal response, please
June 17, 2015