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B and T World Seeds' reference number:
46506
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The average, annual, minimum temperature zone where Penstemon caespitosus is cold hardy
USDA Zone:3 -40° to -30°F (-40° to -34.5°C) |
| Type of plant - perennial |
Flower or inflorescence:
light BLUE, PURPLE throat, pale inside, to 18mm., in leafy inflor.
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Foliage:
1cm. lin.-oblance., apic., glabrate...decumb. - prostrate plant  |
| Height, in meters: 0.4 Height, in feet: 1.32 |
| Penstemon caespitosus sales history |
Penstemon caespitosus
is included in the following
B and T World Seeds flowering plant categories.
| 9 | : Alpine and Rock Garden Seed List (Hardy and Tender) |
| 85 | : Natives of U.S.South West (Arizona Texas New Mexico) |
| 87 | : Natives of Central U.S.A. |
| 185 | : Plant Species whose germination is improved by Smoke |
 "Smoke" contains a butenolide compound produced by certain plants when heated, it speeds up or starts the germination of seeds from many different genera. | |
| 564 | : Plantaginaceae |
| 618 | : Scrophulariaceae |
Happier and Healthier Plants, Naturally
plant-fungus communities, for improved nutrition, and disease and drought resistance.
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