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Penstemon euglaucus

 
Penstemon euglaucus
Penstemon euglaucus
Penstemon euglaucus

Family plantaginaceae
Life cycle perennial (Z5-8)
Flowers violet-blue (late spring)
Size 18"
Light sun
Cultural notes well-drained soil

Forms a low mat of blue-green leaves. Deep blue tubular flowers appear on stems above. Occurs naturally in the Cascades of the Pacific Northwest. I've had limited success overwintering them in our garden areas, but I set a couple of survivors into hypertufa troughs, where they are doing just fine, for now.

Penstemon euglaucus
Late-April foliage on second-year plant

In our garden, this plant grows in the following areas: trough planter

Seed for this plant is included on my seed trade list

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Seed-starting details for this plant

  1. Seed from NARGS '09/'10 exchange, cold-stored through summer. Baggy 35F (8w) - 70F with light (37%G, 3-11d)
  2. Same seed as above, still in cold storage. Baggy 35F (8w) - 70F with light (42%G, 3-10d)
  3. Same seed as above, still in cold storage. Baggy 35F (8w) - 70F with light (74%G, 4-9d)
  4. Same seed as above, still in cold storage. Baggy 35F (8w) - 70F with light (78%G, 3-13d)

Longest seed viability I've seen in penstemons.


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Last modified: March 30, 2014
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