This plant came to my garden as seeds labeled P. cardwellii, but it's clearly not that. According to a self-described penstemaniac, it's either P. canescens or P. hirsutus. I'll go with the former for now... The flowers are similar to those of P. hirsutus pygmaeus, but they are carried higher above the foliage, which is rather narrow-leaved.
||ordinary garden soil
||cold-stratify, then germinate at room temperature
detailed seed-starting info below
|Seed ripens||late October|
We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston.
Read about all the penstemon species in our garden
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PlantLinks to other web pages about Penstemon canescens
Visitors to this page have left the following comments
|Pete Svinth||Jul 17, 2005||I have been observing the Cardwell's Penstemon around Mount Saint Helens for the last few weeks. Your picture is of a much different flower.|
Thanks for the feedback, Pete. I will attempt to figure out the true identity of my plants.
|Susan G||Jan 12, 2010||I have P. canescens from either Niche Gardens, Chapel Hill, NC, or Plant Delights Nursery, Juniper Level, NC (Sorry, can't remember which..). Both reputable sources, so presume the ID is correct. My plant looks exactly like yours as regards leave patterns, habit, flowers etc. |
Thanks for confirming, Susan!
- Seed from '01 trade. Pot set outside in October, no germination
- Same seed as above. Baggy 35F (10w) - 70F (5w; 1G, 7d). Seedling never developed
- Seed from '04 garden. Baggy 35F (10w) - 65F (80%G, 4-11d)
- Same seed as above. Baggy 35F (10w) - 65F (30%G, 3-5d)
- Seed from '07 trade. Baggy 35F (10w) - 70F (90%G, 3-6d)
Original traded seed may have had low viability. Light exposure does not appear to be necessary.
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February 09, 2008