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Penstemon nitidus

Penstemon nitidus
shining penstemon
Penstemon nitidus

Common name shining penstemon
Family plantaginaceae
Life cycle perennial (Z2-7)
Flowers blue
Size 4-12"
Light sun

Species with shiny glaucous leaves and blue flowers, native to northern plains and mountain states of the United States and Canada. I've had a hard time keeping them alive in nursery areas of the garden, but they came through a recent winter successfully in several hypertufa troughs – so I can finally admire their flowers. Two plants from the same seed lot bloomed in different colors: clear blue and purplish.

shining penstemon
Penstemon nitidus

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

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 '12/'13 exchange, cold-stored. Various sizes of seed particles. Baggy 35F (13w; good G, 6-12w). The larger particles germinated first, not sure if they belonged to a different species than the smaller ones.
  2. Seed from '14 trade, cold-stored. Baggy 35F (10w) - 70F (9%G, 4-9d)

Seems like I should have held the 2015 seeds longer at cold conditions.

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