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Penstemon cobaea

Penstemon cobaea

Common name showy beard-tongue
Family plantaginaceae
Life cycle perennial (Z5-9)
Flowers pink (summer)
Size 3' tall, 18" wide
Light full sun
Cultural notes ordinary garden soil
From seed Needs 6 weeks cold treatment, then germinates at room temperature. Seedlings are finnicky, very susceptible to damp-off. Some years it self-seeds.
detailed seed-starting info below
Seed ripenslate September

One of my favorite penstemons. Much larger flowers than most, on an upright plant with fresh green foliage.

showy beard-tongue
Penstemon cobaea

We're re-establishing this plant this year (it used to grow in our garden, but slipped away)

Read about all the penstemon species in our garden

One or more images of this plant are included in my stock photo catalog

About my plant portraits
PlantLinks to other web pages about Penstemon cobaea

Seed-starting details for this plant

  1. Seed from NARGS '17/'18 exchange. Baggy 70F with light (82%G, 5-8d). Also baggy 35F (4w) - 70F with light (27%G, 5-10d)
  2. Same seed as above. Baggy 70F with light (~20%G, 11-15d)
  3. Same seed as above. Baggy 70F with light (no G, 17d)
  4. Seed from NARGS '23/'24 exchange. Baggy 35F (6w; 30%G, 6w) - 70F (43%G, 5d)

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