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Penstemon cobaea |
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| 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
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| Seed ripens | late September |
One of my favorite penstemons. Much larger flowers than most, on an upright plant with fresh green foliage.
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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 from NARGS '17/'18 exchange. Baggy 70F with light (82%G, 5-8d). Also baggy 35F (4w) - 70F with light (27%G, 5-10d)
- Same seed as above. Baggy 70F with light (~20%G, 11-15d)
- Same seed as above. Baggy 70F with light (no G, 17d)
- Seed from NARGS '23/'24 exchange. Baggy 35F (6w; 30%G, 6w) - 70F (43%G, 5d)
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