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Penstemon arenicola

Penstemon arenicola
sand penstemon

Common name sand penstemon
Family plantaginaceae
Life cycle perennial
Flowers purple-blue
Size 4-8"
Light sun
Cultural notes drought-tolerant

Penstemon species occurring in high desert areas from Colorado to Wyoming. Smooth bluish leaves, flowers clustered around an upright leafy steam. The seedlings I planted out in our rock garden did not survive the winter, but luckily the ones planted in a hypertufa trough did. I'm glad, because it's a pretty and distinctive species.

We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston.

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Seed-starting details for this plant

  1. Seed from NARGS '12/'13 exchange, cold-stored. Baggy 35F (10w; 40%G, 5-10w) - 70F with light (4%G, 4d)
  2. Same seed as above, cold-stored. Baggy 35F (9w; 12%G, 5-8w) - 70F with light (36%G, 2-16d). Seeds that germinated at 35F and were potted up immediately did not develop, those that were potted up during the 70F stage did better.

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